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Dai Z, Zhang N, Wang F, Li Y, Peng J, Xiang T, Zhao X, Yang S, Cao W. Loss of microbial functional diversity following Spartina alterniflora invasion reduces the potential of carbon sequestration and nitrogen removal in mangrove sediments-from a gene perspective. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 365:121569. [PMID: 38914045 DOI: 10.1016/j.jenvman.2024.121569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2024] [Revised: 06/18/2024] [Accepted: 06/19/2024] [Indexed: 06/26/2024]
Abstract
Mangrove ecosystems play an important role in carbon (C) sequestration and nitrogen (N) removal. Although Spartina alterniflora has successively invaded native mangrove habitats during the preceding two decades, the effects of this invasion on the microbial functional potential involved in nutrient cycling remain unclear. In this study, metagenomic sequencing was used to investigate microbial C and N cycling in sediments derived from S. alterniflora and three native mangrove species (Kandelia obovata, Avicennia marina, and Aegiceras corniculatum). Greater differences in functional profiles of C and N cycling-related genes were observed between S. alterniflora and mangrove sediments than between different mangrove sediments. Functional diversity was lower in S. alterniflora sediments than in native mangrove sediments. The growth of Thaumarchaeota and Proteobacteria, was enhanced due to their resilience to diversity loss, while the growth of oligotrophs, such as Chloroflexi and Firmicutes, was inhibited in S. alterniflora sediments. Compared to mangrove sediments, the abundance of genes involved in C fixation and methane production was lower in S. alterniflora sediments. However, S. alterniflora significantly increased the gene abundance of pmo which controlled the oxidation process of CH4 to carbon dioxide. Additionally, genes involved in nitrification were enriched, whereas genes involved in N reduction processes, such as denitrification and dissimilatory nitrate reduction to ammonium, N immobilization, and N mineralization, were depleted in S. alterniflora sediments compared to mangrove sediments. Partial least squares regression models demonstrated that the decrease in soil organic C and increase in pH after S. alterniflora invasion induced the loss of microbial functional diversity, which was the main driver of changes in the abundances of genes involved in C and N cycling. Overall, our findings indicate that S. alterniflora invasion modifies the microbial functional profile of nutrient cycling in native mangrove ecosystems and potentially weakens the capacity of mangroves to sequester carbon and remove nitrogen.
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Affiliation(s)
- Zetao Dai
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, College of the Environment and Ecology, Xiamen University, Xiamen, Fujian, 361102, China
| | - Ning Zhang
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, College of the Environment and Ecology, Xiamen University, Xiamen, Fujian, 361102, China
| | - Feifei Wang
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, College of the Environment and Ecology, Xiamen University, Xiamen, Fujian, 361102, China
| | - Yujie Li
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, College of the Environment and Ecology, Xiamen University, Xiamen, Fujian, 361102, China
| | - Jiarui Peng
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, College of the Environment and Ecology, Xiamen University, Xiamen, Fujian, 361102, China
| | - Tao Xiang
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, College of the Environment and Ecology, Xiamen University, Xiamen, Fujian, 361102, China
| | - Xiaoyu Zhao
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, College of the Environment and Ecology, Xiamen University, Xiamen, Fujian, 361102, China
| | - Shengchang Yang
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, College of the Environment and Ecology, Xiamen University, Xiamen, Fujian, 361102, China
| | - Wenzhi Cao
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, College of the Environment and Ecology, Xiamen University, Xiamen, Fujian, 361102, China.
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Lin YZ, Chen QQ, Qiu YF, Xie RR, Zhang H, Zhang Y, Li JB, Han YH. Spartina alterniflora invasion altered phosphorus retention and microbial phosphate solubilization of the Minjiang estuary wetland in southeastern China. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 358:120817. [PMID: 38593740 DOI: 10.1016/j.jenvman.2024.120817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 01/27/2024] [Accepted: 04/01/2024] [Indexed: 04/11/2024]
Abstract
Spartina alterniflora invasion is considered a critical event affecting sediment phosphorus (P) availability and stock. However, P retention and microbial phosphate solubilization in the sediments invaded with or without S. alterniflora have not been fully investigated. In this study, a sequential fractionation method and high-throughput sequencing were used to analyze P transformation and the underlying microbial mechanisms in the sediments of no plant (NP) zone, transition (T) zone, and plant (P) zone. Results showed that except for organic phosphate (OP), total phosphate (TP), inorganic phosphate (IP), and available phosphate (AP) all followed a significant decrease trend from the NP site to the T site, and to the P site. The vertical decrease of TP, IP, and AP was also observed with an increase in soil depth. Among the six IP fractions, Fe-P, Oc-P, and Ca10-P were the predominant forms, while the presence of S. alterniflora resulted in an obvious P depletion except for Ca8-P and Al-P. Although S. alterniflora invasion did not significantly alter the alpha diversity of phosphate-solubilizing bacteria (PSB) harboring phoD gene, several PSB belonging to p_Proteobacteria, p_Planctomycetes, and p_Cyanobacteriota showed close correlations with P speciation and IP fractions. Further correlation analysis revealed that the reduced soil pH, soil TN and soil EC, and the increased soil TOC mediated by the invasion of S. alterniflora also significantly correlated to these PSB. Overall, this study elucidates the linkage between PSB and P speciation and provides new insights into understanding P retention and microbial P transformation in the coastal sediment invaded by S. alterniflora.
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Affiliation(s)
- Yan-Zhen Lin
- College of Environmental and Resource Sciences, Fujian Normal University, Fuzhou, 350117, Fujian, China
| | - Qi-Qi Chen
- College of Environmental and Resource Sciences, Fujian Normal University, Fuzhou, 350117, Fujian, China
| | - Yi-Fan Qiu
- College of Environmental and Resource Sciences, Fujian Normal University, Fuzhou, 350117, Fujian, China; College of Carbon Neutral Modem Industry, Fujian Normal University, Fuzhou, 350117, Fujian, China
| | - Rong-Rong Xie
- College of Environmental and Resource Sciences, Fujian Normal University, Fuzhou, 350117, Fujian, China
| | - Hong Zhang
- College of Environmental and Resource Sciences, Fujian Normal University, Fuzhou, 350117, Fujian, China
| | - Yong Zhang
- College of Environmental and Resource Sciences, Fujian Normal University, Fuzhou, 350117, Fujian, China
| | - Jia-Bing Li
- College of Carbon Neutral Modem Industry, Fujian Normal University, Fuzhou, 350117, Fujian, China; Fujian Key Laboratory of Pollution Control and Resource Reuse, Fuzhou, 350117, Fujian, China.
| | - Yong-He Han
- College of Environmental and Resource Sciences, Fujian Normal University, Fuzhou, 350117, Fujian, China.
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Raheem A, Yohanna P, Li G, Noh NJ, Iqbal B, Tang J, Du D, Alahmadi TA, Ansari MJ, Zhan A, Son Y. Unraveling the ecological threads: How invasive alien plants influence soil carbon dynamics. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 356:120556. [PMID: 38537457 DOI: 10.1016/j.jenvman.2024.120556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Revised: 03/04/2024] [Accepted: 03/04/2024] [Indexed: 04/07/2024]
Abstract
Invasive alien plants (IAPs) pose significant threats to native ecosystems and biodiversity worldwide. However, the understanding of their precise impact on soil carbon (C) dynamics in invaded ecosystems remains a crucial area of research. This review comprehensively explores the mechanisms through which IAPs influence soil C pools, fluxes, and C budgets, shedding light on their effects and broader consequences. Key mechanisms identified include changes in litter inputs, rates of organic matter decomposition, alterations in soil microbial communities, and shifts in nutrient cycling, all driving the impact of IAPs on soil C dynamics. These mechanisms affect soil C storage, turnover rates, and ecosystem functioning. Moreover, IAPs tend to increase gross primary productivity and net primary productivity leading to the alterations in fluxes and C budgets. The implications of IAP-induced alterations in soil C dynamics are significant and extend to plant-soil interactions, ecosystem structure, and biodiversity. Additionally, they have profound consequences for C sequestration, potentially impacting climate change mitigation. Restoring native plant communities, promoting soil health, and implementing species-specific management are essential measures to significantly mitigate the impacts of IAPs on soil C dynamics. Overall, understanding and mitigating the effects of IAPs on soil C storage, nutrient cycling, and related processes will contribute to the conservation of native biodiversity and complement global C neutrality efforts.
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Affiliation(s)
- Abdulkareem Raheem
- School of Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, People's Republic of China
| | - Paul Yohanna
- Department of Environmental Resource Management, Faculty of Earth and Environmental Sciences, Federal University Dustin-ma, Katsina State, Nigeria
| | - Guanlin Li
- School of Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, People's Republic of China; Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment, Suzhou University of Science and Technology, Suzhou, 215009, People's Republic of China.
| | - Nam Jin Noh
- Department of Forest Resources, Kangwon National University, Chuncheon, 24341, Republic of Korea
| | - Babar Iqbal
- School of Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, People's Republic of China
| | - Jing Tang
- Key Laboratory of State Forestry Administration on Biodiversity Conservation in Karst Mountainous Areas of Southwestern China, School of Life Sciences, Guizhou Normal University, Guiyang, 550025, People's Republic of China
| | - Daolin Du
- Jingjiang College, Institute of Environment and Ecology, School of Emergency Management, School of Environment and Safety Engineering, School of Agricultural Engineering, Jiangsu University, Zhenjiang, 212013, People's Republic of China
| | - Tahani Awad Alahmadi
- Department of Pediatrics, College of Medicine and King Khalid University Hospital, King Saud University, Medical City, PO Box-2925, Riyadh -11461, Saudi Arabia
| | - Mohammad Javed Ansari
- Department of Botany, Hindu College Moradabad (Mahatma Jyotiba Phule Rohilkhand University Bareilly), India
| | - Aibin Zhan
- Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, People's Republic of China.
| | - Yowhan Son
- Division of Environmental Science and Ecological Engineering, Korea University, Seoul, 02841, Republic of Korea
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Beyene BB, Li J, Yuan J, Liu D, Chen Z, Kim J, Kang H, Freeman C, Ding W. Climatic zone effects of non-native plant invasion on CH 4 and N 2O emissions from natural wetland ecosystems. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 906:167855. [PMID: 37844632 DOI: 10.1016/j.scitotenv.2023.167855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 09/24/2023] [Accepted: 10/13/2023] [Indexed: 10/18/2023]
Abstract
Plant invasion can significantly alter the carbon and nitrogen cycles of wetlands, which potentially affects the emission of greenhouse gases (GHGs). The extent of these effects can vary depending on several factors, including the species of invasive plants, their growth patterns, and the climatic conditions prevailing in the wetland. Understanding the global effects of plant invasion on the emission of methane (CH4) and nitrous oxide (N2O) is crucial for the climate-smart management of wetlands. Here, we performed a global meta-analysis of 207 paired case studies that quantified the effect of non-native plant invasion on CH4 and N2O emissions in tropical/sub-tropical (TS) and temperate (TE) wetlands. The average emission rate of CH4 from the TS wetlands increased significantly from 337 to 577 kg CH4 ha-1 yr-1 in areas where native plants had been displaced by invasive plants. Similarly, in TE wetlands, the emission rates increased from 211 to 299 kg CH4 ha-1 yr-1 following the invasion of alien plant species. The increase in CH4 emissions at invaded sites was attributed to the increase in plant biomass, soil organic carbon (SOC), and soil moisture (SM). The effects of plant invasion on N2O emissions differed between TS and TE wetlands in that there was no significant effect in TS wetlands, whereas the N2O emissions reduced in TE wetlands. This difference in N2O emissions between climate zones was attributed to the depletion of NH4+ and NO3- in soils and the lower soil temperature in temperate regions. Overall, plant invasion increased the global net CH4 emissions from natural wetlands by 10.54 Tg CH4 yr-1. However, there were variations in CH4 emissions across different climatic zones, indicated by a net increase in CH4 emissions, of 9.97 and 0.57 Tg CH4 yr-1 in TS and TE wetlands, respectively. These findings highlight that plant invasion not only strongly stimulates the emission of CH4 from TS wetlands, but also suppresses N2O emissions from TE wetlands. These novel insights immensely improve our current understanding of the effects of climatic zones on biogeochemical controlling factors that influence the production of greenhouse gases (GHGs) from wetlands following plant invasion. By analyzing the specific mechanisms by which invasive plants affect GHG emissions in different climatic zones, effective strategies can be devised to reduce GHG emissions and preserve wetland ecosystems.
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Affiliation(s)
- Bahilu Bezabih Beyene
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China; University of Chinese Academy of Sciences, Beijing 10049, China; Department of Natural Resources Management, Jimma University College of Agriculture and Veterinary Medicine, Jimma 307, Ethiopia
| | - Junjie Li
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China; University of Chinese Academy of Sciences, Beijing 10049, China
| | - Junji Yuan
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China.
| | - Deyan Liu
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Zengming Chen
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Jinhyun Kim
- School of Civil and Environmental Engineering, Yonsei University, Seoul 120-749, Republic of Korea
| | - Hojeong Kang
- School of Civil and Environmental Engineering, Yonsei University, Seoul 120-749, Republic of Korea
| | - Chris Freeman
- School of Natural Sciences, Bangor University, Gwynedd LL57 2UW, UK
| | - Weixin Ding
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China.
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Song L, Wang Q, Di Y, Wu J. Bacterial communities and interactions between macrobenthos and microorganisms after Spartina alterniflora invasion and Kandelia obovata plantation in Yueqing Bay, China. ECOHYDROLOGY & HYDROBIOLOGY 2024; 24:154-168. [DOI: 10.1016/j.ecohyd.2024.01.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/10/2024]
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Zhang G, Bai J, Jia J, Wang W, Wang D, Zhao Q, Wang C, Chen G. Soil microbial communities regulate the threshold effect of salinity stress on SOM decomposition in coastal salt marshes. FUNDAMENTAL RESEARCH 2023; 3:868-879. [PMID: 38933010 PMCID: PMC11197625 DOI: 10.1016/j.fmre.2023.02.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 12/23/2022] [Accepted: 02/28/2023] [Indexed: 03/29/2023] Open
Abstract
Salinity stress is one of the critical environmental drivers of soil organic matter (SOM) decomposition in coastal ecosystems. Although the temperature sensitivity (Q10) of SOM decomposition has been widely applied in Earth system models to forecast carbon processes, the impact of salinity on SOM decomposition by restructuring microbial communities remains uncovered. Here, we conducted a microcosm experiment with soils collected from the coastal salt marsh in the Yellow River Estuary, which is subjected to strong dynamics of salinity due to both tidal flooding and drainage. By setting a gradient of salt solutions, soil salinity was adjusted to simulate salinity stress and soil carbon emission (CO2) rate was measured over the period. Results showed that as salinity increased, the estimated decomposition constants based on first-order kinetics gradually decreased at different temperatures. Below the 20‰ salinity treatments, which doubled the soil salinity, Q10 increased with increasing salinity; but higher salinity constrained the temperature-related response of SOM decomposition by inhibiting microbial growth and carbon metabolisms. Soil bacteria were more sensitive to salinity stress than fungi, which can be inferred from the response of microbial beta-diversity to changing salinity. Among them, the phylotypes assigned to Gammaproteobacteria and Bacilli showed higher salt tolerance, whereas taxa affiliated with Alphaproteobacteria and Bacteroidota were more easily inhibited by the salinity stress. Several fungal taxa belonging to Ascomycota had higher adaptability to the stress. As the substrate was consumed with the incubation, bacterial competition intensified, but the fungal co-occurrence pattern changed weakly during decomposition. Collectively, these findings revealed the threshold effect of salinity on SOM decomposition in coastal salt marshes and emphasized that salt stress plays a key role in carbon sequestration by regulating microbial keystone taxa, metabolisms, and interactions.
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Affiliation(s)
- Guangliang Zhang
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
- Advanced Institute of Natural Sciences, Beijing Normal University, Zhuhai 519087, China
| | - Junhong Bai
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
| | - Jia Jia
- Henan Key Laboratory of Ecological Environment Protection and Restoration of Yellow River Basin, Yellow River Institute of Hydraulic Research, Zhengzhou 450003, China
| | - Wei Wang
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
| | - Dawei Wang
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
| | - Qingqing Zhao
- Shandong Provincial Key Laboratory of Applied Microbiology, Ecology Institute, Qilu University of Technology (Shandong Academy of Sciences), Ji'nan 250103, China
| | - Chen Wang
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
| | - Guozhu Chen
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
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Guo Y, Zhang A, Qin C, Yu G, Ma H. Community assembly patterns and processes of microbiome responses to habitats and Mytilopsis sallei invasion in the tidal zones of the Pearl River Estuary. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 857:159675. [PMID: 36280051 DOI: 10.1016/j.scitotenv.2022.159675] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 10/10/2022] [Accepted: 10/20/2022] [Indexed: 06/16/2023]
Abstract
The sustainability of estuarine ecosystem functions depends on the stabilization of microbial ecological processes. However, due to the unique and variable habitat characteristics of estuarine areas, in-depth studies on ecological processes such as the spatial distribution and assembly patterns of microbial community structure are lacking. As methods to elucidate this structure, we used 16S rDNA, 18S rDNA and ITS sequencing technologies to study the composition, diversity, spatial pattern and aggregation mechanism of the bacterial, protist and fungal communities in the tidal zones of the Pearl River Estuary (PRETZ). The abundance of bacterial communities was much higher than that of protists and fungi, and the spatial pattern was obvious in PRETZ. The application of neutral and null models revealed the assembly process of three microbial communities dominated by stochastic processes. Among the stochastic processes, undominated processes (64.03 %, 62.45 %, and 59.29 %) were the most critical processes in the assembly of bacterial, fungal and protist communities. Meanwhile, environmental variables, geographic locations, and biological factors were associated with the composition and assembly of bacterial, protist, and fungal communities. Among the environmental variables, dissolved oxygen and salinity were the main predictors that jointly affected the differences in the community structure of the three microorganisms, and geographic location was the second predictor affecting the community structure of the three microorganisms and had a more pronounced effect on the diversity and network structure of the bacterial and fungal communities. However, biological factors exerted a weaker effect on the microbial community structure than spatial factors and only affected bacteria and protists; the invasive species Mytilopsis sallei only affected the process of protist community assembly. In addition, environmental variables affected the relative importance of stochastic processes. In summary, the formation of microbial communities in the PRETZ was affected by random processes, environmental variables, geographic location, and invasive species.
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Affiliation(s)
- Yu Guo
- South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China; National Agricultural Experimental Station for Fishery Resources and Environment Dapeng, Shenzhen, China; Key Laboratory of Marine Ranching, Ministry of Agriculture and Rural Affairs, China; Guangdong Provincial Key Laboratory of Fishery Ecology and Environment, Guangzhou, China
| | - Ankai Zhang
- South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China
| | - Chuanxin Qin
- South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China; National Agricultural Experimental Station for Fishery Resources and Environment Dapeng, Shenzhen, China; Key Laboratory of Marine Ranching, Ministry of Agriculture and Rural Affairs, China; Guangdong Provincial Key Laboratory of Fishery Ecology and Environment, Guangzhou, China.
| | - Gang Yu
- South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China
| | - Hongmei Ma
- South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China
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Shang S, Zhang Z, Zhao L, Liu L, Shi D, Xu H, Zhang H, Xie W, Zhao F, Zhou Z, Xu J, Wang J. Effect of Parthenium hysterophorus L. Invasion on Soil Microbial Communities in the Yellow River Delta, China. Microorganisms 2022; 11:microorganisms11010018. [PMID: 36677310 PMCID: PMC9863114 DOI: 10.3390/microorganisms11010018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Accepted: 12/15/2022] [Indexed: 12/24/2022] Open
Abstract
Parthenium hysterophorus L., as an invasive plant, has negatively impacted the ecosystem functioning and stability of the terrestrial ecosystem in China. However, little information was available for its effects on microorganisms in the Yellow River Delta (YRD), the biggest newly-formed wetland in China. In the present study, high-throughput sequencing technology was used to obtain the bacterial community in soils and roots of different plant species, including P. hysterophorus and some native ones in the YRD. Our results showed that the Proteobacteria, Acidobacteriota, Gemmatimonadota, and Actinobacteriota were dominant in the rhizosphere soils of P. hysterophorus (84.2%) and Setaria viridis (86.47%), and the bulk soils (80.7%). The Proteobacteria and Actinobacteriota were dominant within the root of P. hysterophorus. A total of 2468 bacterial OTUs were obtained from different groups among which 140 were observed in all the groups; 1019 OTUs were shared by P. hysterophorus non-rhizosphere soil bacteria (YNR) P. hysterophorus rhizosphere soil bacteria (YRR) groups. The indexes of the ACE (823.1), Chao1 (823.19), Simpson (0.9971), and Shannon (9.068) were the highest in the YRR groups, showing the greatest bacterial community diversity. Random forest analysis showed that the Methylomirabilota and Dadabacteria (at the phylum level) and the Sphingomonas, and Woeseia (at the genus level) were identified as the main predictors among different groups. The LEfSe results also showed the essential role of the Acidobacteriota in the YRR group. The SourceTracker analysis of the bacterial community of the YRR group was mainly from GBS groups (average 53.14%) and a small part was from YNR groups (average 6.56%), indicating that the P. hysterophorus invasion had a more significant effect on native plants' rhizosphere microorganisms than soil microorganisms. Our observations could provide valuable information for understanding the bacterial diversity and structure of the soil to the invasion of P. hysterophorus.
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Affiliation(s)
- Shuai Shang
- School of Biological and Environmental Engineering, Binzhou University, Binzhou 256600, China
| | - Zaiwang Zhang
- School of Biological and Environmental Engineering, Binzhou University, Binzhou 256600, China
| | - Liping Zhao
- School of Biological and Environmental Engineering, Binzhou University, Binzhou 256600, China
| | - Longxiang Liu
- School of Biological and Environmental Engineering, Binzhou University, Binzhou 256600, China
| | - Dongli Shi
- School of Biological and Environmental Engineering, Binzhou University, Binzhou 256600, China
| | - Hui Xu
- School of Biological and Environmental Engineering, Binzhou University, Binzhou 256600, China
| | - Hanjie Zhang
- School of Biological and Environmental Engineering, Binzhou University, Binzhou 256600, China
| | - Wenjun Xie
- School of Environmental & Municipal Engineering, Qingdao University of Technology, Qingdao 266000, China
| | - Fengjuan Zhao
- School of Biological and Environmental Engineering, Binzhou University, Binzhou 256600, China
| | - Zhihao Zhou
- Binzhou Shell Dike Island and Wetland National Nature Reserve Management Service Center, Binzhou 256600, China
| | - Jikun Xu
- School of Biological and Environmental Engineering, Binzhou University, Binzhou 256600, China
- Correspondence: (J.X.); (J.W.)
| | - Jun Wang
- School of Biological and Environmental Engineering, Binzhou University, Binzhou 256600, China
- Correspondence: (J.X.); (J.W.)
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Song L, Wang Q, Zhu Y, Christakos G, Wu J. Changes to the structure and function of microbial communities in Spartina alterniflora and Kandelia obovata sediments as a factor of stand age. APPLIED SOIL ECOLOGY 2022; 177:104544. [DOI: 10.1016/j.apsoil.2022.104544] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/10/2024]
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10
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Shang S, Li L, Zhang Z, Zang Y, Chen J, Wang J, Wu T, Xia J, Tang X. The Effects of Secondary Growth of Spartina alterniflora after Treatment on Sediment Microorganisms in the Yellow River Delta. Microorganisms 2022; 10:microorganisms10091722. [PMID: 36144325 PMCID: PMC9506343 DOI: 10.3390/microorganisms10091722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 08/22/2022] [Accepted: 08/23/2022] [Indexed: 11/30/2022] Open
Abstract
As a typical invasive species, Spartina alterniflora is widely recognized as one of the primary threats to biodiversity in various habitats, including wetlands. Although the invasion by S. alterniflora has been managed in multiple ways, it may reappear after treatment. How S. alterniflora affects the soil microbial community in coastal wetlands during its regeneration process has not yet been clarified. Here, rhizosphere soil samples (RSPs) and bulk soil samples (SSPs) were collected in the S. alterniflora community and a high-throughput sequencing method was conducted to analyze the composition and diversity of soil microorganisms. Meanwhile, we also obtain the soil physicochemical properties. In the present study, there was no significant difference in the alpha diversity of both bacterial and fungal communities in the SSP and RSP groups. The PCoA (principal coordinate analysis) also showed that the microbial community structure did not differ significantly between the SSP and RSP groups. The results showed that except for pH, the total sulfur (TS) content, total nitrogen (TN) content, and electrical conductivity (EC) did not differ significantly (p > 0.05) between the SSP and RSP groups. The composition of the bacterial and fungal community in the rhizosphere of S. alterniflora was similar to that found in the surrounding soils. The top two dominant bacterial phyla were Proteobacteria and Desulfobacterota in the present study. Venn diagram results also support this view; most OTUs belong to the common OTUs of the two groups, and the proportion of unique OTUs is relatively small. The LEfSe (LDA effect size) analysis showed that Campylobacterota (at the phylum level) and Sulfurimonas (at the genus level) significantly increased in the RSP group, implying that the increased Sulfurimonas might play an essential role in the invasion by S. alterniflora during the under-water period. Overall, these results suggest that the bacterial and fungal communities were not significantly affected by the S. alterniflora invasion due to the short invasion time.
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Affiliation(s)
- Shuai Shang
- School of Biological & Environmental Engineering, Binzhou University, Binzhou 256600, China
- College of Marine Life Sciences, Ocean University of China, Qingdao 266005, China
- Correspondence: (S.S.); (X.T.)
| | - Liangyu Li
- College of Marine Life Sciences, Ocean University of China, Qingdao 266005, China
| | - Zaiwang Zhang
- School of Biological & Environmental Engineering, Binzhou University, Binzhou 256600, China
| | - Yu Zang
- Department of Natural Resources, First Institute of Oceanography, Qingdao 266100, China
| | - Jun Chen
- College of Marine Life Sciences, Ocean University of China, Qingdao 266005, China
| | - Jun Wang
- School of Biological & Environmental Engineering, Binzhou University, Binzhou 256600, China
| | - Tao Wu
- School of Biological & Environmental Engineering, Binzhou University, Binzhou 256600, China
| | - Jiangbao Xia
- School of Biological & Environmental Engineering, Binzhou University, Binzhou 256600, China
- Shandong Provincial Key Laboratory of Eco-Environmental Science for Yellow River Delta, Binzhou University, Binzhou 256600, China
| | - Xuexi Tang
- College of Marine Life Sciences, Ocean University of China, Qingdao 266005, China
- Correspondence: (S.S.); (X.T.)
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11
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Zhang G, Bai J, Tebbe CC, Huang L, Jia J, Wang W, Wang X, Yu L, Zhao Q. Plant invasion reconstructs soil microbial assembly and functionality in coastal salt marshes. Mol Ecol 2022; 31:4478-4494. [PMID: 35789059 DOI: 10.1111/mec.16600] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 06/25/2022] [Accepted: 06/30/2022] [Indexed: 11/27/2022]
Abstract
Microbiologically driven ecosystem processes can be profoundly altered by alien plant invasions. The understanding of ecological mechanisms orchestrating different microbial constituents and their roles in emerging functional properties under plant invasions is limited. Here, we investigated soil microbial communities and functions using high-throughput amplicon sequencing and GeoChip technology, respectively, along a chronological gradient of smooth cordgrass invasion in salt marshes located in the Yellow River Estuary, China. We found a positive correlation between microbial diversity and the duration age of invasion, and both bacterial and fungal communities exerted orderly changes with invasion. Soil microbial metabolic potential, as indicated by the abundance of microbial functional genes involved in biogeochemical cycling, decreased in response to invasion. As a consequence, declined soil microbial metabolisms by plant invasion facilitated the carbon accumulation in invaded salt marshes. Bacteria and fungi exhibited distinct contributions to assembly processes along the invasion gradient: bacterial communities were mainly driven by selection and dispersal limitation, while fungi were dramatically shaped by stochastic processes. Soil microbial-mediated functions were taxon-specific, as indicated by community-function relationships. This study demonstrates the distinct contributions of microbial constituents to microbial community assembly and functions and sheds light on the implications of plant invasion on microbiologically driven ecosystem processes in coastal wetlands.
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Affiliation(s)
- Guangliang Zhang
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing, P.R. China
| | - Junhong Bai
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing, P.R. China
| | - Christoph C Tebbe
- Thünen Institute of Biodiversity, Bundesallee 65, Braunschweig, Germany
| | - Laibin Huang
- Department of Land, Air, and Water Resources, University of California-, Davis, USA
| | - Jia Jia
- Henan Key Laboratory of Ecological Environment Protection and Restoration of Yellow River Basin, Yellow River Institute of Hydraulic Research, Zhengzhou, P.R. China
| | - Wei Wang
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing, P.R. China
| | - Xin Wang
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing, P.R. China
| | - Lu Yu
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing, P.R. China
| | - Qingqing Zhao
- Qilu University of Technology (Shandong Academy of Sciences), Ji' nan, P.R. China.,Ecology Institute of Shandong Academy of Sciences, Ji' nan, P.R. China
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12
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Li L, Jiang X, Zhou Q, Chen J, Zang Y, Zhang Z, Gao C, Tang X, Shang S. Responses of Soil Microbiota to Different Control Methods of the Spartina alterniflora in the Yellow River Delta. Microorganisms 2022; 10:microorganisms10061122. [PMID: 35744640 PMCID: PMC9230759 DOI: 10.3390/microorganisms10061122] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 05/20/2022] [Accepted: 05/27/2022] [Indexed: 02/01/2023] Open
Abstract
Spartina alterniflora invasion has negative effects on the structure and functioning of coastal wetland ecosystems. Therefore, many methods for controlling S. alterniflora invasion have been developed. S. alterniflora control methods can affect plant community, which results in changes in microbial communities and subsequent changes in soil ecological processes. However, the effects of controlling S. alterniflora on soil microbial communities remain poorly understood. We aimed to examine the responses of bacterial and fungal communities to invasion control methods (cutting plus tilling treatment: CT; mechanical rolling treatment: MR). Soil bacterial and fungal community diversity and composition structure were assessed using high-throughput sequencing technology. The findings of the study showed that bacterial diversity and richness in the CT treatment reduced substantially, but fungal diversity and richness did not show any remarkable change. Bacterial and fungal diversity and richness in the MR treatment were not affected considerably. In addition, the two control methods significantly changed the soil microbial community structure. The relative abundance of bacteria negatively associated with nutrient cycling increased considerably in the CT treatment. The considerable increases in the relative abundance of certain bacterial taxa in the MR treatment may promote soil nutrient cycling. Compared with mechanical rolling, soil bacterial community diversity and structure were more sensitive to cutting plus tilling.
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Affiliation(s)
- Liangyu Li
- College of Marine Life Sciences, Ocean University of China, Qingdao 266005, China; (L.L.); (J.C.); (Y.Z.)
| | - Xiangyang Jiang
- Shandong Provincial Key Laboratory of Marine Ecological Restoration, Shandong Marine Resource and Environment Research Institute, Yantai 250299, China; (X.J.); (Q.Z.); (C.G.)
| | - Quanli Zhou
- Shandong Provincial Key Laboratory of Marine Ecological Restoration, Shandong Marine Resource and Environment Research Institute, Yantai 250299, China; (X.J.); (Q.Z.); (C.G.)
| | - Jun Chen
- College of Marine Life Sciences, Ocean University of China, Qingdao 266005, China; (L.L.); (J.C.); (Y.Z.)
| | - Yu Zang
- College of Marine Life Sciences, Ocean University of China, Qingdao 266005, China; (L.L.); (J.C.); (Y.Z.)
| | - Zaiwang Zhang
- College of Biological and Environmental Engineering, Binzhou University, Binzhou 256601, China;
| | - Chen Gao
- Shandong Provincial Key Laboratory of Marine Ecological Restoration, Shandong Marine Resource and Environment Research Institute, Yantai 250299, China; (X.J.); (Q.Z.); (C.G.)
| | - Xuexi Tang
- College of Marine Life Sciences, Ocean University of China, Qingdao 266005, China; (L.L.); (J.C.); (Y.Z.)
- Correspondence: (X.T.); (S.S.)
| | - Shuai Shang
- College of Marine Life Sciences, Ocean University of China, Qingdao 266005, China; (L.L.); (J.C.); (Y.Z.)
- College of Biological and Environmental Engineering, Binzhou University, Binzhou 256601, China;
- Correspondence: (X.T.); (S.S.)
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13
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Effects of Spartina alterniflora Invasion on Nitrogen Fixation and Phosphorus Solubilization in a Subtropical Marine Mangrove Ecosystem. Microbiol Spectr 2022; 10:e0068221. [PMID: 35604174 PMCID: PMC9241609 DOI: 10.1128/spectrum.00682-21] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
This study revealed the efficient nutrient cycling mechanism of mangroves. Positive coupling effects were observed in sediment quality, NF and PS processes, and NFOPSMs with the invasion of
S. alterniflora
.
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14
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Song Z, Sun Y, Liu P, Wang Y, Huang Y, Gao Y, Hu X. Invasion of
Spartina alterniflora
on
Zostera japonica
enhances the abundances of bacteria by absolute quantification sequencing analysis. Ecol Evol 2022; 12:e8939. [PMID: 35600690 PMCID: PMC9120208 DOI: 10.1002/ece3.8939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 04/15/2022] [Accepted: 05/04/2022] [Indexed: 11/26/2022] Open
Abstract
Plant invasion can alter soil organic matter composition and indirectly impact estuary ecology; therefore, it is paramount to understand how plant invasion influences the bacterial community. Here, we present an absolute quantification 16S rRNA gene sequencing to investigate the bacterial communities that were collected from Zostera japonica and Spartina alterniflora covered areas and Z. japonica degradation areas in the Yellow River Estuary. Our data revealed that the absolute quantity of bacteria in the surface layer was significantly (p < .05) higher than that in the bottom and degradation areas. Following the invasion of S. alterniflora, the abundances of Bacteroidia, Acidimicrobiaceae, and Dehalococcoidaceaewere enriched in the S. alterniflora sediment. In addition, variations in the composition of sediment bacterial communities at the phylum level were the most intimately related to total organic carbon (TOC), and the content of heavy metals could reduce the abundance of bacteria. This study provided some information to understand the effects of S. alterniflora invasion on Z. japonica from the perspective of microbiome level.
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Affiliation(s)
- Zenglei Song
- Key laboratory of Coastal Biology and Bioresource Utilization Yantai Institute of Costal Zone Research Chinese Academy of Sciences Yantai China
- Laboratory for Marine Biology and Biotechnology Qingdao National Laboratory for Marine Science and Technology Qingdao China
- University of Chinese Academy of Sciences Beijing China
| | - Yanyu Sun
- Key laboratory of Coastal Biology and Bioresource Utilization Yantai Institute of Costal Zone Research Chinese Academy of Sciences Yantai China
- Laboratory for Marine Biology and Biotechnology Qingdao National Laboratory for Marine Science and Technology Qingdao China
- University of Chinese Academy of Sciences Beijing China
| | - Pengyuan Liu
- Key laboratory of Coastal Biology and Bioresource Utilization Yantai Institute of Costal Zone Research Chinese Academy of Sciences Yantai China
- Laboratory for Marine Biology and Biotechnology Qingdao National Laboratory for Marine Science and Technology Qingdao China
- University of Chinese Academy of Sciences Beijing China
| | - Yibo Wang
- Key laboratory of Coastal Biology and Bioresource Utilization Yantai Institute of Costal Zone Research Chinese Academy of Sciences Yantai China
- Laboratory for Marine Biology and Biotechnology Qingdao National Laboratory for Marine Science and Technology Qingdao China
- University of Chinese Academy of Sciences Beijing China
| | - Yanyan Huang
- Key laboratory of Coastal Biology and Bioresource Utilization Yantai Institute of Costal Zone Research Chinese Academy of Sciences Yantai China
- Laboratory for Marine Biology and Biotechnology Qingdao National Laboratory for Marine Science and Technology Qingdao China
- University of Chinese Academy of Sciences Beijing China
| | - Yan Gao
- Marine Science Research Institute of Shandong Province National Oceanographic Center of Qingdao Qingdao China
| | - Xiaoke Hu
- Key laboratory of Coastal Biology and Bioresource Utilization Yantai Institute of Costal Zone Research Chinese Academy of Sciences Yantai China
- Laboratory for Marine Biology and Biotechnology Qingdao National Laboratory for Marine Science and Technology Qingdao China
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15
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Shang S, Hu S, Liu X, Zang Y, Chen J, Gao N, Li L, Wang J, Liu L, Xu J, Zhang Y, Wu T, Tang X. Effects of
Spartina alterniflora
invasion on the community structure and diversity of wetland soil bacteria in the Yellow River Delta. Ecol Evol 2022; 12:e8905. [PMID: 35571753 PMCID: PMC9077829 DOI: 10.1002/ece3.8905] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 04/19/2022] [Accepted: 04/20/2022] [Indexed: 01/04/2023] Open
Affiliation(s)
- Shuai Shang
- College of Biological and Environmental Engineering Binzhou University Binzhou Shandong China
- College of Marine Life Sciences Ocean University of China Qingdao Shandong China
| | - Shunxin Hu
- Shandong Provincial Key laboratory of Marine Ecological Restoration Shandong Marine Resource and Environment Research Institute Yantai China
| | - Xiaoxue Liu
- College of Biological and Environmental Engineering Binzhou University Binzhou Shandong China
| | - Yu Zang
- College of Marine Life Sciences Ocean University of China Qingdao Shandong China
| | - Jun Chen
- College of Marine Life Sciences Ocean University of China Qingdao Shandong China
| | - Ning Gao
- National Marine Environment Monitoring Center Dalian China
| | - Liangyu Li
- College of Marine Life Sciences Ocean University of China Qingdao Shandong China
| | - Jun Wang
- College of Biological and Environmental Engineering Binzhou University Binzhou Shandong China
| | - Longxiang Liu
- College of Biological and Environmental Engineering Binzhou University Binzhou Shandong China
| | - Jikun Xu
- College of Biological and Environmental Engineering Binzhou University Binzhou Shandong China
| | - Yumiao Zhang
- College of Biological and Environmental Engineering Binzhou University Binzhou Shandong China
| | - Tao Wu
- College of Biological and Environmental Engineering Binzhou University Binzhou Shandong China
| | - Xuexi Tang
- College of Marine Life Sciences Ocean University of China Qingdao Shandong China
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16
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Wu Y, Leng Z, Li J, Jia H, Yan C, Hong H, Wang Q, Lu Y, Du D. Increased fluctuation of sulfur alleviates cadmium toxicity and exacerbates the expansion of Spartina alterniflora in coastal wetlands. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 292:118399. [PMID: 34695515 DOI: 10.1016/j.envpol.2021.118399] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Revised: 10/15/2021] [Accepted: 10/20/2021] [Indexed: 06/13/2023]
Abstract
Evidence suggests that the invasion of Spartina alterniflora (S. alterniflora) poses potentially serious risks to the stability of coastal wetlands, an ecosystem that is extremely vulnerable to both biological and non-biological threats. However, the effects and mechanisms of sulfur (S) in mediating the growth and expansion of S. alterniflora are poorly understood, particularly when sediments are contaminated with cadmium (Cd). A 6-month greenhouse study was conducted to evaluate the mediating effect of S on Cd tolerance and growth of S. alterniflora. Treatments consisted of a factorial combination of three S rates (applied as Na2SO4; 0, 500, 1000 mg kg-1 dry weight (DW), as S0, S500, and S1000) and four Cd rates (applied as CdCl2; 0, 1, 2, 4 mg kg-1 DW, as Cd0, Cd1, Cd2, and Cd4). Results showed that although the exogenous S supply obviously increased Cd accumulation in roots (up to 71.22 ± 6.43 mg kg-1 DW) due to the decrease of Fe concentration in iron plaque (down to 4.02 ± 1.18 mg g-1 DW), biomass reduction and oxidative stress in plant tissues were significantly alleviated. The addition of S significantly up-regulated the concentration of compounds related to Cd tolerance, including proline and glutathione. Therefore, the translocation of Cd was restricted, and plant growth was not impacted. The present study demonstrated that the exogenous sulfur supply could promote the growth of S. alterniflora and enhance its tolerance to Cd. Therefore, under the effects of S. alterniflora, the increased fluctuations of S pool caused by the release and deposition of S might further exacerbate S. alterniflora expansion in Cd contaminated coastal wetlands.
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Affiliation(s)
- Yueming Wu
- Institute of Environment and Ecology, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Zhanrui Leng
- Institute of Environment and Ecology, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Jian Li
- Institute of Environment and Ecology, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, China; State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen, 361102, China.
| | - Hui Jia
- Institute of Environment and Ecology, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, China; State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen, 361102, China
| | - Chongling Yan
- State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen, 361102, China
| | - Hualong Hong
- State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen, 361102, China
| | - Qiang Wang
- State Key Laboratory of Grassland Agro-Ecosystems, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, 730000, China
| | - Yanyan Lu
- Institute of Environment and Ecology, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Daolin Du
- Institute of Environment and Ecology, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, China
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17
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Li Y, Wang Y, Shen C, Xu L, Yi S, Zhao Y, Zuo W, Gu C, Shan Y, Bai Y. Structural and Predicted Functional Diversities of Bacterial Microbiome in Response to Sewage Sludge Amendment in Coastal Mudflat Soil. BIOLOGY 2021; 10:biology10121302. [PMID: 34943217 PMCID: PMC8698727 DOI: 10.3390/biology10121302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 12/04/2021] [Accepted: 12/06/2021] [Indexed: 11/16/2022]
Abstract
The study investigated the influence of sewage sludge application at rates of 0 (CK), 30 (ST), 75 (MT), and 150 (HT) t ha−1 to mudflats on bacterial community diversity and predicted functions using amplicon-based sequencing. Soils under sewage sludge treatments, especially the HT treatment, exhibited lower pH, salinity and higher nutrient contents (C, N, and P). Moreover, restructured bacterial communities with significantly higher diversities and distinct core and unique microbiomes were observed in all sewage sludge-amended soils as compared to the control. Specifically, core bacterial families, such as Hyphomicrobiaceae, Cytophagaceae, Pirellulaceae Microbacteriaceae, and Phyllobacteriaceae, were significantly enriched in sewage sludge-amended soils. In addition, sewage sludge amendment significantly improved predicted functional diversities of core microbiomes, with significantly higher accumulative relative abundances of functions related to carbon and nitrogen cycling processes compared to the unamended treatment. Correlation analyses showed that modified soil physicochemical properties were conducive for the improvement of diversities of bacterial communities and predicted functionalities. These outcomes demonstrated that sewage sludge amendment not only alleviated saline–sodic and nutrient deficiency conditions, but also restructured bacterial communities with higher diversities and versatile functions, which may be particularly important for the fertility formation and development of mudflat soils.
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Affiliation(s)
- Yunlong Li
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou 225127, China; (Y.L.); (Y.W.); (C.S.); (L.X.); (S.Y.); (Y.Z.); (W.Z.); (Y.S.)
| | - Yimin Wang
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou 225127, China; (Y.L.); (Y.W.); (C.S.); (L.X.); (S.Y.); (Y.Z.); (W.Z.); (Y.S.)
| | - Chao Shen
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou 225127, China; (Y.L.); (Y.W.); (C.S.); (L.X.); (S.Y.); (Y.Z.); (W.Z.); (Y.S.)
| | - Lu Xu
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou 225127, China; (Y.L.); (Y.W.); (C.S.); (L.X.); (S.Y.); (Y.Z.); (W.Z.); (Y.S.)
| | - Siqiang Yi
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou 225127, China; (Y.L.); (Y.W.); (C.S.); (L.X.); (S.Y.); (Y.Z.); (W.Z.); (Y.S.)
| | - Yilin Zhao
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou 225127, China; (Y.L.); (Y.W.); (C.S.); (L.X.); (S.Y.); (Y.Z.); (W.Z.); (Y.S.)
| | - Wengang Zuo
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou 225127, China; (Y.L.); (Y.W.); (C.S.); (L.X.); (S.Y.); (Y.Z.); (W.Z.); (Y.S.)
| | - Chuanhui Gu
- Environmental Research Center, Duke Kunshan University, Kunshan 215316, China;
| | - Yuhua Shan
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou 225127, China; (Y.L.); (Y.W.); (C.S.); (L.X.); (S.Y.); (Y.Z.); (W.Z.); (Y.S.)
- Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, Nanjing 210095, China
| | - Yanchao Bai
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou 225127, China; (Y.L.); (Y.W.); (C.S.); (L.X.); (S.Y.); (Y.Z.); (W.Z.); (Y.S.)
- Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, Nanjing 210095, China
- Correspondence:
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18
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Cai JF, Liu XS, Sun K, Wang W, Zhang MX, Li HL, Xu HF, Kong WJ, Yu FH. Biochar-amended coastal wetland soil enhances growth of Suaeda salsa and alters rhizosphere soil nutrients and microbial communities. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 788:147707. [PMID: 34023605 DOI: 10.1016/j.scitotenv.2021.147707] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Revised: 04/17/2021] [Accepted: 05/09/2021] [Indexed: 05/20/2023]
Abstract
Biochar has the potential to improve soil properties and increase plant productivity. However, due to the different types of soil, plants, and environmental factors, the impact of biochar is likely to vary. We explored the impacts of biochar prepared from an invasive plant Spartina alterniflora on plant performance and soil characteristics in a simulated coastal wetland ecosystem. We investigated the impact of three application ratios (control, 1%, and 5%; weight ratio) of biochar on the germination and growth of a native plant Suaeda salsa, the nutrient content and microbial community characteristics of the rhizosphere soil under three flooding treatments (no flooding, episodic flooding, and continuous flooding). Biochar application had no impact on seed germination of S. salsa, but promoted its seedling growth (biomass, height, root length) and nitrogen content. Biochar application also enhanced soil nutrient content and affected soil microbial community characteristics. Seed germination and seedling growth of S. salsa were sensitive to flooding and were the best under episodic flooding. Notably, flooding inhibited the impact of biochar on S. salsa and rhizosphere soil. In conclusion, biochar can positively affect the growth of S. salsa and improve the quality of rhizosphere soil, especially under no flooding. Our findings highlight the possibility of applying biochar for the restoration of S. salsa in coastal wetlands.
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Affiliation(s)
- Jing-Fang Cai
- The Key Laboratory of Ecological Protection in the Yellow River Basin of National Forestry and Grassland Administration, School of Ecology and Nature Conservation, Beijing Forestry University, Beijing 100083, China
| | - Xuan-Shao Liu
- The Key Laboratory of Ecological Protection in the Yellow River Basin of National Forestry and Grassland Administration, School of Ecology and Nature Conservation, Beijing Forestry University, Beijing 100083, China
| | - Kai Sun
- The Key Laboratory of Ecological Protection in the Yellow River Basin of National Forestry and Grassland Administration, School of Ecology and Nature Conservation, Beijing Forestry University, Beijing 100083, China
| | - Wei Wang
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
| | - Ming-Xiang Zhang
- The Key Laboratory of Ecological Protection in the Yellow River Basin of National Forestry and Grassland Administration, School of Ecology and Nature Conservation, Beijing Forestry University, Beijing 100083, China
| | - Hong-Li Li
- The Key Laboratory of Ecological Protection in the Yellow River Basin of National Forestry and Grassland Administration, School of Ecology and Nature Conservation, Beijing Forestry University, Beijing 100083, China.
| | - Hao-Fu Xu
- Department of Civil and Environmental Engineering, University of California, Berkeley, CA 94720, USA
| | - Wei-Jing Kong
- Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
| | - Fei-Hai Yu
- School of Life Sciences, Taizhou University, Taizhou 318000, China
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19
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Wang C, Pan Y, Zhang Z, Xiao R, Zhang M. Effect of straw decomposition on organic carbon fractions and aggregate stability in salt marshes. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 777:145852. [PMID: 33676213 DOI: 10.1016/j.scitotenv.2021.145852] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 01/29/2021] [Accepted: 02/10/2021] [Indexed: 06/12/2023]
Abstract
Straw addition can increase the content of soil organic carbon (SOC), and affect the content of aggregates and organic carbon fractions. The changes in aggregates and organic carbon fractions in the natural salt marsh, 10-year and 15-year freshwater pumping areas in the Yellow River Estuary were studied by 120-day field in situ culture experiments with Phragmites australis straw addition. The results showed that straw addition mainly enhanced the soil aggregate stability in the 10-year freshwater pumping area, and the organic carbon content of small macro-aggregates increased significantly by 26.36% (P < 0.05). In particular, the content of coarse particulate organic carbon (cPOC) with small macro-aggregates in all areas increased significantly with the addition of straw (P < 0.05). For small macro-aggregates in the 10-year pumping area, the cPOC contents increased significantly by 21.73 g/kg (P < 0.05); and were significantly higher than the fine particulate organic carbon (fPOC) and mineral-associated organic carbon (mSOC) contents, as the fPOC contents in micro-aggregates increased by 85.92% (P < 0.05). Additionally, the cPOC contents of small macro-aggregates and fPOC contents of micro-aggregates increased by 34.59% and 43.24% in the 15-year pumping area. The contents of mSOC were the lowest in different aggregates across all areas. Thus, straw addition had a significant effect on the contents of cPOC and fPOC, while freshwater pumping in the YRE could affect the distribution of fPOC and mSOC with aggregates.
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Affiliation(s)
- Chen Wang
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China; School of Ecology and Nature Conservation, Beijing Forestry University, Beijing 100083, China
| | - Yueyan Pan
- School of Ecology and Nature Conservation, Beijing Forestry University, Beijing 100083, China
| | - Zhenming Zhang
- School of Ecology and Nature Conservation, Beijing Forestry University, Beijing 100083, China
| | - Rong Xiao
- College of Environment and Resources, Fuzhou University, Fuzhou 350116, China.
| | - Mingxiang Zhang
- School of Ecology and Nature Conservation, Beijing Forestry University, Beijing 100083, China.
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20
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Xuehui Z, Zhongsheng Z, Zhe L, Min L, Haitao W, Ming J. Impacts of Spartina alterniflora invasion on soil carbon contents and stability in the Yellow River Delta, China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 775:145188. [PMID: 33631589 DOI: 10.1016/j.scitotenv.2021.145188] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 12/31/2020] [Accepted: 01/10/2021] [Indexed: 06/12/2023]
Abstract
Spartina alterniflora has rapidly expanded in coastal wetlands of China, and this would affect soil organic carbon (SOC) storage and stability. In the present work, the impacts of S. alterniflora colonization on SOC pool and stability was deciphered to better understand how alien species altered the carbon cycle in the Yellow River Delta (YRD). SOC contents were in the range of 1.29 g/kg-7.02 g/kg, of which wetlands covered by S. alterniflora increased with colonization time and exceed those in wetlands covered by native species after 7 years. Pyrolysis-gas chromatography/mass spectrometry analysis showed that aromatic moieties were predominant components of SOC, and there were remarkable increase trends of phenol and lignin compounds and decrease trend of aromatic moieties with S. alterniflora invasion time. SA had the highest microorganism biomass reflected by phospholipids fatty acid (PLFA) across different wetlands. Salinity had the largest negative effects while nutrients had the largest positive effects on the SOC pool. The proportion of decomposition-resistant compounds (including aromatics, lignin, and phenol) to total SOC was decreasing while the SOC pool was increasing with S. alterniflora invasion time. This study demonstrated that S. alterniflora invasion could promote the SOC pool but weaken its stability in the wetlands of the YRD.
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Affiliation(s)
- Zhang Xuehui
- Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130024, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhang Zhongsheng
- Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130024, China.
| | - Li Zhe
- Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130024, China; Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China
| | - Li Min
- Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130024, China
| | - Wu Haitao
- Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130024, China
| | - Jiang Ming
- Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130024, China
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21
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Chi Z, Zhu Y, Li H, Wu H, Yan B. Unraveling bacterial community structure and function and their links with natural salinity gradient in the Yellow River Delta. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 773:145673. [PMID: 33940756 DOI: 10.1016/j.scitotenv.2021.145673] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 01/15/2021] [Accepted: 02/02/2021] [Indexed: 06/12/2023]
Abstract
Salinization can change the soil environment and affect microbial processes. In this study, soil samples were collected from Zone A (Phragmites australis wetlands), Zone B (P. australis and Suaeda salsa wetlands), and Zone C (Spartina alterniflora wetlands) in the Yellow River Delta. The microbial community and functional potential along the natural salinity gradient were investigated. Total nitrogen, ammonia nitrogen, and soil organic matter presented a downward trend, and salinity first increased and then decreased from Zone A to Zone C. Nitrospira and norank_f_Nitrosomonadaceae were widely distributed throughout the zones. Denitrifying bacteria Alcanivorax, Marinobacterter, and Marinobacterium were abundant in Zone B and preferred high salinity levels. However, denitrifying bacteria Azoarcus, Flavobacterium, and Pseudomonas were mainly distributed in low-salinity Zones A and C, suggesting their high sensitivity to salinity. Dissimilatory nitrate reduction to ammonia (DNRA) bacteria Aeromonas and Geobacter dominated Zone C, whereas Caldithrix performed DNRA in Zone B. Interestingly, DNRA with organic matter as the electron donor (C-DNRA) occurred in Zone A; DNRA coupled with sulfide oxidation (S-DNRA) was dominant in Zone B; and C-DNRA and DNRA with divalent iron as electron donor and S-DNRA occurred simultaneously in Zone C. Salinity was the key factor distinguishing low and high salinity zones, and total nitrogen and total phosphorus had important effects at the phylum and genus levels. The abundance of genes encoding cell growth and death was relatively stable, indicating that the microbial community had good environmental adaptability. The genes related to the biodegradation of xenobiotics and the metabolism of terpenoids and polyketides were abundant in Zone B, revealing high metabolic potential for exogenous refractory substances. The microorganisms under low-salinity Zones A and C were more sensitive to environmental changes than those under Zone B. These results suggest that salinity plays important roles in microbial processes and shapes specific functional zones in coastal wetlands.
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Affiliation(s)
- Zifang Chi
- Key Lab of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun 130021, PR China
| | - Yuhuan Zhu
- Key Lab of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun 130021, PR China
| | - Huai Li
- Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, PR China.
| | - Haitao Wu
- Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, PR China
| | - Baixing Yan
- Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, PR China
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22
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Wu T, Li XB, Xu J, Liu LX, Ren LL, Dong B, Li W, Xie WJ, Yao ZG, Chen QF, Xia JB. Diversity and functional characteristics of endophytic bacteria from two grass species growing on an oil-contaminated site in the Yellow River Delta, China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 767:144340. [PMID: 33429273 DOI: 10.1016/j.scitotenv.2020.144340] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 12/01/2020] [Accepted: 12/02/2020] [Indexed: 06/12/2023]
Abstract
Phragmites australis and Chloris virgata are native, dominant, salt-tolerant grass species that grow in the Yellow River Delta, China, and have potential applications in the phytoremediation of petroleum-polluted saline soil. The characteristics of endophytic bacterial communities of Phragmites australis and Chloris virgata and their functions in hydrocarbon degradation and plant growth promotion have been studied using both high-throughput sequencing and conventional microbial techniques. Through 16S rRNA gene amplicon sequencing, we found five bacterial phyla that were dominant among the endophytic bacterial communities of the two grass species, including Proteobacteria, Actinobacteria, Firmicutes, Bacteroidetes, and Tenericutes. The phylum Proteobacteria was common among the endophytic bacterial communities of the two grass species. The diversity in the endophytic bacterial community of Chloris virgata was generally higher than that in the community of Phragmites australis. Thirty-eight hydrocarbon-degrading endophytic bacteria were isolated from the two grasses via culturing techniques. Based on phylogenetic analyses, the bacterial isolates were classified into the phyla Proteobacteria, Firmicutes, and Actinobacteria. The majority of strains belonged to the genera Bacillus and Pseudomonas. More than 70% of the isolates of hydrocarbon-degrading endophytes exhibited the ability to stimulate plant growth. These isolates mainly belonged to Bacillus sp., Pseudomonas sp., Beijerinckia sp., Serratia sp., Acinetobacter sp., Microbacterium sp., and Rhizobium sp. Altogether, the present study revealed that Phragmites australis and Chloris virgata growing on petroleum-polluted saline soil in the Yellow River Delta harbor several diverse species of endophytic bacteria and serve as novel sources of beneficial bacteria and hydrocarbon degradation.
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Affiliation(s)
- Tao Wu
- Shandong Provincial Engineering and Technology Research Center for Wild Plant Resources Development and Application of Yellow River Delta, College of Biological and Environmental Engineering, Binzhou University, Binzhou 256603, China; Shandong Key Laboratory of Eco-Environmental Science for the Yellow River Delta, Binzhou University, Binzhou 256603, China
| | - Xiao-Bin Li
- Zhuhai Precision Medical Center, Zhuhai People's Hospital (Zhuhai hospital affiliated with Jinan University), Zhuhai 519000, China
| | - Jie Xu
- Department of Bioengineering, Binzhou Vocational College, Binzhou 256600, China
| | - Long-Xiang Liu
- Shandong Provincial Engineering and Technology Research Center for Wild Plant Resources Development and Application of Yellow River Delta, College of Biological and Environmental Engineering, Binzhou University, Binzhou 256603, China
| | - Li-Li Ren
- Shandong Provincial Engineering and Technology Research Center for Wild Plant Resources Development and Application of Yellow River Delta, College of Biological and Environmental Engineering, Binzhou University, Binzhou 256603, China
| | - Bin Dong
- Shandong Provincial Engineering and Technology Research Center for Wild Plant Resources Development and Application of Yellow River Delta, College of Biological and Environmental Engineering, Binzhou University, Binzhou 256603, China
| | - Wang Li
- Shandong Provincial Engineering and Technology Research Center for Wild Plant Resources Development and Application of Yellow River Delta, College of Biological and Environmental Engineering, Binzhou University, Binzhou 256603, China
| | - Wen-Jun Xie
- Shandong Provincial Engineering and Technology Research Center for Wild Plant Resources Development and Application of Yellow River Delta, College of Biological and Environmental Engineering, Binzhou University, Binzhou 256603, China; Shandong Key Laboratory of Eco-Environmental Science for the Yellow River Delta, Binzhou University, Binzhou 256603, China
| | - Zhi-Gang Yao
- Shandong Provincial Engineering and Technology Research Center for Wild Plant Resources Development and Application of Yellow River Delta, College of Biological and Environmental Engineering, Binzhou University, Binzhou 256603, China
| | - Qing-Feng Chen
- College of Geography and Environment, Shandong Normal University, Jinan 250014, China.
| | - Jiang-Bao Xia
- Shandong Provincial Engineering and Technology Research Center for Wild Plant Resources Development and Application of Yellow River Delta, College of Biological and Environmental Engineering, Binzhou University, Binzhou 256603, China; Shandong Key Laboratory of Eco-Environmental Science for the Yellow River Delta, Binzhou University, Binzhou 256603, China.
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23
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Wang C, Xiao R, Guo Y, Wang Q, Cui Y, Xiu Y, Ma Z, Zhang M. Changes in soil microbial community composition during Phragmites australis straw decomposition in salt marshes with freshwater pumping. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 762:143996. [PMID: 33360338 DOI: 10.1016/j.scitotenv.2020.143996] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Revised: 11/04/2020] [Accepted: 11/15/2020] [Indexed: 06/12/2023]
Abstract
The dynamic changes of soil microorganisms after Phragmites australis straw addition in the incubation tubes were analyzed by phospholipid fatty acid stable isotope probing (PLFA-SIP). After comparing soils from different freshwater pumping areas in the Yellow River Estuary (10-year pumping area, 15-year pumping area and natural salt marsh without pumping), the results showed that the total PLFA contents significantly increased by 59.99%-146.93% after the addition of straw to surface soils (0-10 cm) in the pumping areas, whereas the changes in deeper soils (10-20 cm) were not significant. In particular, the PLFA results showed that bacteria and fungi were significantly increased after 10 days with straw addition. Straw treatment also improved the ratio of fungi to bacteria (F:B) in the surface soils of all sampling sites. The soil microorganisms directly absorbed straw-derived 13C, where Gram-negative bacteria (GN) were found to have the highest PLFA-13C values during the 40-day decomposition process. Soil characteristics can significantly affect microbial community composition. Accordingly, soil organic carbon (SOC) was found to be significantly positively related to bacterial, fungal and other microbial biomasses, while moisture, electric conductivity (EC) and soil aggregate composition were important factors of influence on the microbial community. The findings indicated that both fungi and bacteria were essential microbial communities in straw decomposition, the significant increase of fungi biomass and the absorption of straw-derived 13C by bacteria were the main changes of microbial community. Long-term freshwater pumping can promote straw decomposition by increasing microbial biomass and changing microbial community composition.
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Affiliation(s)
- Chen Wang
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China; School of Ecology and Nature Conservation, Beijing Forestry University, Beijing 100083, China
| | - Rong Xiao
- College of Environment and Resources, Fuzhou University, Fuzhou 350116, China.
| | - Yutong Guo
- School of Ecology and Nature Conservation, Beijing Forestry University, Beijing 100083, China
| | - Qian Wang
- School of Ecology and Nature Conservation, Beijing Forestry University, Beijing 100083, China
| | - Yuan Cui
- School of Ecology and Nature Conservation, Beijing Forestry University, Beijing 100083, China
| | - Yujiao Xiu
- School of Ecology and Nature Conservation, Beijing Forestry University, Beijing 100083, China
| | - Ziwen Ma
- School of Ecology and Nature Conservation, Beijing Forestry University, Beijing 100083, China
| | - Mingxiang Zhang
- School of Ecology and Nature Conservation, Beijing Forestry University, Beijing 100083, China.
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24
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Chi Z, Wang W, Li H, Wu H, Yan B. Soil organic matter and salinity as critical factors affecting the bacterial community and function of Phragmites australis dominated riparian and coastal wetlands. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 762:143156. [PMID: 33131883 DOI: 10.1016/j.scitotenv.2020.143156] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 09/30/2020] [Accepted: 10/14/2020] [Indexed: 05/25/2023]
Abstract
Soil salinization poses a great threat to the natural ecosystem and interferes with the structure and function of the biological community, resulting in different vegetation distributions. However, little attention is paid to the changes in microbial community in different wetland types with the same vegetation. In this study, the Yellow River Delta was used as a model because of its typical and extensive distribution of Phragmites australis-dominated saltwater and freshwater wetlands. We investigated the differences in the structure and function of bacterial communities, as well as their relationships with soil properties in coastal (Zone A) and riparian (Zone B) wetlands. Results showed higher salinity and pH in Zone A than Zone B (p < 0.05), whereas TN (p < 0.05) and SOM were lower than those in Zone B. Significant differences existed in microbial community composition between Zones A and B. The nitrifying-bacteria Nitrospira and norank_f_Nitrosomonadaceae had high abundance in Zones A and B. Alcanivorax, Halomonas, and Marinobacter were extensively distributed in Zone A, whereas Flavobacterium and Pseudomonas were dominant in Zone B, indicating the diversity characteristics of denitrifying bacteria. Conversely, methane-oxidizing bacteria Methylophaga were significantly higher in Zone A than in Zone B (p < 0.05), indicating that high salinity was conducive to aerobic methane oxidation and that the genetic diversity at strain level endowed it with a certain denitrification potential. Salinity and SOM played important roles in shaping microbial community at phylum and genus levels. The gene abundances related to xenobiotics metabolism and repair were high in Zone A, whereas the genes encoding energy metabolism and signal transduction were relatively high in Zone B. Denitrification was more favored for the low-salinity Zone B, whereas methane oxidation was enriched in the high-salinity Zone A. Therefore, our study emphasized the importance of an in-depth understanding of the microbial-community structure and function in Phragmites australis-dominated saltwater and freshwater wetlands.
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Affiliation(s)
- Zifang Chi
- Key Lab of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun 130021, PR China
| | - Wenjing Wang
- Key Lab of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun 130021, PR China
| | - Huai Li
- Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, PR China.
| | - Haitao Wu
- Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, PR China
| | - Baixing Yan
- Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, PR China
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25
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Xia J, Lang Y, Zhao Q, Liu P, Su L. Photosynthetic characteristics of Tamarix chinensis under different groundwater depths in freshwater habitats. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 761:143221. [PMID: 33218805 DOI: 10.1016/j.scitotenv.2020.143221] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Revised: 09/15/2020] [Accepted: 10/14/2020] [Indexed: 06/11/2023]
Abstract
Groundwater is the major source of water for Tamarix chinensis growth in the Yellow River Delta (YRD) region, and the groundwater depth (GWD) dramatically influences the physiological activities of T. chinensis. The quantitative response of the photosynthetic physiological process of T. chinensis to the GWD in freshwater habitats remains unclear. In this study, the response characteristics of gas exchange parameters in the leaves of three-year-old T. chinensis seedlings were measured and analyzed at a graded series of seven GWDs (0 m, 0.3 m, 0.6 m, 0.9 m, 1.2 m, 1.5 m and 1.8 m). The GWD thresholds corresponding to drastic changes in the photosynthetic efficiency and the GWDs of several levels of photosynthetic productivity and efficiency were also determined. In the freshwater habitats of the YRD, variations in GWD significantly altered the relative soil water content (RSWC) and thus influenced the photosynthetic efficiency of T. chinensis. RSWC at 0 ≤ GWD ≤ 0.9 m and GWD at 1.2 m ≤ GWD ≤ 1.8 m directly influenced the photosynthetic physiology of T. chinensis. When the GWD was 1.2 m, net photosynthetic rate (Pn), apparent quantum efficiency and water use efficiency (WUE) values all peaked. Thus, T. chinensis exhibited a high light and water use efficiency, wide ecological amplitude in terms of light, and high photosynthetic capacity. The optimum GWD for photosynthetic carbon assimilation and WUE in T. chinensis was determined to be 1.2 m. At a deep (≥1.64 m) or shallow (≤0.53 m) GWD, both Pn and WUE in T. chinensis clearly decreased below the corresponding mean values. The main causes for the reduction in Pn in these two GWD ranges (≤0.53 m, ≥1.64 m) were stomatal and nonstomatal limitations, respectively. Additionally, a moderate GWD of 1.09-1.25 m corresponded to the "high-productivity and high-efficiency GWD" range, in which T. chinensis displayed a high photosynthetic yield and WUE. Overall, the photosynthetic capacity of T. chinensis shows characteristics of high tolerance to moderate GWDs from 1.09 m to 1.25 m but intolerance at both shallow (≤0.53 m) and deep (≥1.64 m) GWDs in freshwater habitats.
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Affiliation(s)
- Jiangbao Xia
- Shandong Key Laboratory of Eco-Environmental Science for the Yellow River Delta, Binzhou University, Binzhou 256603, PR China
| | - Ying Lang
- College of Agriculture and Forestry Science, Linyi University, Linyi 276000, PR China.
| | | | - Ping Liu
- Shandong Key Laboratory of Eco-Environmental Science for the Yellow River Delta, Binzhou University, Binzhou 256603, PR China
| | - Li Su
- Shandong Key Laboratory of Eco-Environmental Science for the Yellow River Delta, Binzhou University, Binzhou 256603, PR China
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26
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Wang L, Yuan J, Wang Y, Butterly CR, Tong D, Zhou B, Li X, Zhang H. Effects of Exotic Spartina alterniflora Invasion on Soil Phosphorus and Carbon Pools and Associated Soil Microbial Community Composition in Coastal Wetlands. ACS OMEGA 2021; 6:5730-5738. [PMID: 33681612 PMCID: PMC7931372 DOI: 10.1021/acsomega.0c06161] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Accepted: 02/02/2021] [Indexed: 06/12/2023]
Abstract
Soil microorganisms can be altered by plant invasion into wetland ecosystems and comprise an important linkage between phosphorus (P) availability and soil carbon (C) chemistry; however, the intrinsic mechanisms of P and C transformation associated with microbial community and function are poorly understood in coastal wetland. In this study, we used a sequential fractionation method and 13C nuclear magnetic resonance (NMR) spectroscopy to capture the changes in soil P pools and C chemical composition with bare flats (BF), native Phragmites australis(PA), and invasive Spartina alterniflora(SA), respectively. The responses of the soil microbial community using phospholipid fatty acid (PLFA) profiling and function indicated by nine enzyme activities associated with C, nitrogen (N), and P cycles were also investigated. Compared to PA and BF, SA invasion significantly (P < 0.05) changed P pools and mainly increased the available P by 17.5 and 37.0%, respectively. The presence of the plants (SA and PA) significantly (P < 0.05) altered the soil C chemical composition mainly by affecting the aliphatic functional groups, resulting in a lower alkyl C/O-alkyl C ratio value. Compared to BF and SA, PA significantly (P < 0.05) increased arbuscular mycorrhizal fungi (AMF) abundance. Soil enzyme activity, especially for the P and C cycle enzymes, was also affected by plant species with the highest geometric mean enzyme and hydrolase activity for the PA zone. We also found that soil C compositions and P pools were associated with microbial community structure and enzyme activity, respectively. However, little interaction between C and P was found on either soil microbial composition or soil enzyme activity variation. Further, microbial community composition was tightly correlated with the soil P compared to soil C chemistry, while enzyme activity showed more response with soil C chemistry compared to soil P pool changes.
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Affiliation(s)
- Lei Wang
- Ministry
of Ecology and Environment, Nanjing Institute
of Environmental Sciences, Nanjing 210042, China
| | - Jiahui Yuan
- State
Key Laboratory of Soil and Sustainable Agriculture, Changshu National
Agro-Ecosystem Observation and Research Station, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
- University
of the Chinese Academy of Sciences, Beijing 10049, China
| | - Yu Wang
- State
Key Laboratory of Soil and Sustainable Agriculture, Changshu National
Agro-Ecosystem Observation and Research Station, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Clayton R. Butterly
- School
of Agriculture and Food, Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Parkville Campus, Melbourne, Victoria 3010, Australia
| | - Deli Tong
- College
of Life Science, Shenyang Normal University, Shenyang 110034, China
| | - Bo Zhou
- Ministry
of Ecology and Environment, Nanjing Institute
of Environmental Sciences, Nanjing 210042, China
| | - Xiuzhen Li
- State Key
Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200241, China
| | - Huabin Zhang
- Jiangsu
Key Laboratory for Bioresources of Saline Soils, Jiangsu Provincial
Key Laboratory of Coastal Wetland Bioresources and Environmental Protection,
Jiangsu Synthetic Innovation Center for Coastal Bio-agriculture, Yancheng Teachers University, Yancheng 224007, China
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27
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Jiang Y, Wang Y, Zhou D, Ke Y, Bai J, Li W, Yan J. The impact assessment of hydro-biological connectivity changes on the estuary wetland through the ecological restoration project in the Yellow River Delta, China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 758:143706. [PMID: 33250237 DOI: 10.1016/j.scitotenv.2020.143706] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 10/27/2020] [Accepted: 11/11/2020] [Indexed: 06/12/2023]
Abstract
Yellow River Delta (YRD) is one of the youngest delta with complex hydrological and biological connectivity in the world, where offers habitats to the famous waterfowls in the Eastern Asia. Meanwhile, one specific ecological restoration project named as the "Wuwanmu" and followed by the "Shiwanmu" within the National Nature Reserve of the Yellow River Delta (NNRYRD) complicated the hydrological and biological connectivity. How to quantitatively evaluate the extent of coastal wetland affected by the project will be a difficult problem. Hence the authors presented three innovative models of the Marine Connectivity Change Index (MCCI), the Coupling Index of Hydro-biological Connectivity (CIHBC), and the Assessment Index of Suitability on Bird Habitats (AISBH). After the project, the habitat of Phragmites australis has been restored effectively with the increased area of 24.59%, while the habitat of Suaeda salsa as the native species lost largely with decreased area of 84.62%. And the tidal channel having been cut off by the project resulted in isolating the buildup restoration area from seawater, and reshaping completely the plant habitat environment. So the hydrological and biological connectivity has been changed largely with the 47.79% decreased MCCI area and the 16.3% decreased zero-valued CIHBC area. However the AISBH non-zero-valued area increased 10.7%, and with the hidden worry of the decreased Grallatores number. From the connectivity prospective, three models presented a significant methodology to evaluate the complex impact on the estuary wetland habitat caused by the restoration project. In the long run, the ecological impacts should be highlighted to the change of tidal channel and the corresponding tidal issues, and the continuous and big loss of native plant spices such as S. salsa. The further study needs to explore the longer-term assessment of the ecological restoration project and its multiple effect in the future.
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Affiliation(s)
- Yuxin Jiang
- College of Resource, Environment and Tourism, Capital Normal University, Beijing 100048, China; Key Laboratory of 3D Information Acquisition and Application of Ministry, Capital Normal University, Beijing 100048, China
| | - Yunzhe Wang
- College of Resource, Environment and Tourism, Capital Normal University, Beijing 100048, China; Key Laboratory of 3D Information Acquisition and Application of Ministry, Capital Normal University, Beijing 100048, China
| | - Demin Zhou
- College of Resource, Environment and Tourism, Capital Normal University, Beijing 100048, China; Key Laboratory of 3D Information Acquisition and Application of Ministry, Capital Normal University, Beijing 100048, China.
| | - Yinghai Ke
- College of Resource, Environment and Tourism, Capital Normal University, Beijing 100048, China; Key Laboratory of 3D Information Acquisition and Application of Ministry, Capital Normal University, Beijing 100048, China.
| | - Junhong Bai
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
| | - Wenwen Li
- College of Resource, Environment and Tourism, Capital Normal University, Beijing 100048, China; Key Laboratory of 3D Information Acquisition and Application of Ministry, Capital Normal University, Beijing 100048, China
| | - Jiaguo Yan
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
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28
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Zhang G, Bai J, Tebbe CC, Huang L, Jia J, Wang W, Wang X, Yu L, Zhao Q. Spartina alterniflora invasions reduce soil fungal diversity and simplify co-occurrence networks in a salt marsh ecosystem. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 758:143667. [PMID: 33248759 DOI: 10.1016/j.scitotenv.2020.143667] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 09/30/2020] [Accepted: 11/08/2020] [Indexed: 05/14/2023]
Abstract
Soil fungal communities drive diverse ecological processes and are critical in maintaining ecosystems' stability, but the effects of plant invasion on soil fungal diversity, community composition, and functional groups are not well understood. Here, we investigated soil fungal communities in a salt marsh ecosystem with both native (Suaeda salsa) and exotic (Spartina alterniflora) species in the Yellow River Delta. We characterized fungal diversity based on the PCR-amplified Internal Transcribed Spacer 2 (ITS2) DNA sequences from soil extracted total DNA. The plant invasion evidently decreased fungal richness and phylogenetic diversity and significantly altered the taxonomic community composition (indicated by the permutation test, P < 0.001). Co-occurrence networks between fungal species showed fewer network links but were more assembled because of the high modularity after the invasion. As indicated by the fungal Bray-Curtis and weighted UniFrac distances, the fungal community became homogenized with the invasion. FUNGuild database analyses revealed that the invaded sites had a higher proportion of saprophytic fungi, suggesting higher organic matter decomposition potential with the invasion. The plant invasion dramatically inhibited the growth of pathogenic fungi, which may facilitate the expansion of invasive plants in the intertidal habitats. Soil pH and salinity were identified as the most important edaphic factors in shaping the fungal community structures in the context of Spartina alterniflora invasion. Overall, this study elucidates the linkage between plant invasion and soil fungal communities and poses potential consequences for fungal contribution to ecosystem function, including the decomposition of soil organic substrates.
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Affiliation(s)
- Guangliang Zhang
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, PR China
| | - Junhong Bai
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, PR China.
| | - Christoph C Tebbe
- Thünen Institute of Biodiversity, Bundesallee 65, Braunschweig 38116, Germany
| | - Laibin Huang
- Department of Land, Air, and Water Resources, University of California-Davis, CA 95616, USA
| | - Jia Jia
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, PR China
| | - Wei Wang
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, PR China
| | - Xin Wang
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, PR China
| | - Lu Yu
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, PR China
| | - Qingqing Zhao
- Qilu University of Technology (Shandong Academy of Sciences), Ji'nan 250103, PR China; Ecology Institute of Shandong Academy of Sciences, Ji'nan 250103, PR China
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29
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Lu G, Xie B, Cagle GA, Wang X, Han G, Wang X, Hou A, Guan B. Effects of simulated nitrogen deposition on soil microbial community diversity in coastal wetland of the Yellow River Delta. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 757:143825. [PMID: 33280872 DOI: 10.1016/j.scitotenv.2020.143825] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 10/19/2020] [Accepted: 11/01/2020] [Indexed: 05/17/2023]
Abstract
Due to the enhancement of human activities on the global scale, the total amount of atmospheric nitrogen (N) deposition and the rate keep increasing, which seriously affect the structure and function of terrestrial ecosystems. In order to study the effects of N deposition on the soil structure and function of coastal saline wetlands, we established a long-term nitrogen deposition simulation platform in 2012 in the Yellow River delta (YRD). Herein, we analyzed the composition and diversity of the soil microbial community under different N deposition treatments (LNN, MNN and HNN, which stand for 50 kg N ha-1 yr-1, 100 kg N ha-1 yr-1, and 200 kg N ha-1 yr-1) and in a water-only control (CK). The results showed that with the increasing level of N deposition, α-diversity (Shannon and Simpson indices) decreased significantly, and the composition of the microbial community changed. At the phylum level, compared with CK, the relative abundance of Chloroflexi increased significantly under the treatment of HNN (P = 0.002), but the relative abundance of Chlorobi (P = 0.013) and Verrucomicrobia (P = 0.035) decreased significantly. At the genus level, compared with CK, the relative abundance of Bacillus (P = 0.01) and Halomonas (P = 0.042) increased significantly with HNN treatment. Bacillus and Nitrococcus showed a significant correlation with soil NH4+-N. The results suggest that the response of microorganisms to N deposition treatments varied by the concentration, and the deposition of a high concentration would increase the nutrients in the soil, but reduce the diversity of soil microorganisms, causing a negative impact on the coastal wetland ecosystem of the YRD.
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Affiliation(s)
- Guanru Lu
- CAS Key Laboratory of Coastal Environmental Process and Ecological Remediation, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Science (CAS), Shandong Key Laboratory of Coastal Environmental Processes, YICCAS, Yantai 264003, China
| | - Baohua Xie
- CAS Key Laboratory of Coastal Environmental Process and Ecological Remediation, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Science (CAS), Shandong Key Laboratory of Coastal Environmental Processes, YICCAS, Yantai 264003, China
| | - Grace A Cagle
- Department of Environmental Sciences, College of the Coast and Environment, Louisiana State University, Baton Rouge, LA 70803, USA
| | - Xuehong Wang
- The Institute for Advanced Study of Coastal Ecology, Ludong University, Yantai 264025, China
| | - Guangxuan Han
- CAS Key Laboratory of Coastal Environmental Process and Ecological Remediation, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Science (CAS), Shandong Key Laboratory of Coastal Environmental Processes, YICCAS, Yantai 264003, China
| | - Xiaojie Wang
- CAS Key Laboratory of Coastal Environmental Process and Ecological Remediation, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Science (CAS), Shandong Key Laboratory of Coastal Environmental Processes, YICCAS, Yantai 264003, China
| | - Aixin Hou
- Department of Environmental Sciences, College of the Coast and Environment, Louisiana State University, Baton Rouge, LA 70803, USA
| | - Bo Guan
- CAS Key Laboratory of Coastal Environmental Process and Ecological Remediation, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Science (CAS), Shandong Key Laboratory of Coastal Environmental Processes, YICCAS, Yantai 264003, China.
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Cui Q, Xia J, Yang H, Liu J, Shao P. Biochar and effective microorganisms promote Sesbania cannabina growth and soil quality in the coastal saline-alkali soil of the Yellow River Delta, China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 756:143801. [PMID: 33307496 DOI: 10.1016/j.scitotenv.2020.143801] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 10/26/2020] [Accepted: 10/30/2020] [Indexed: 05/24/2023]
Abstract
Soil salinization and nutrient deficiency have emerged as the major factors negatively impacting soil quality and primary productivity in the coastal saline-alkali soil of the Yellow River Delta. Biochar has been proposed as an efficient strategy for promoting plant growth and restoring degraded saline-alkali soil. However, knowledge is inadequate regarding the effects of adding Spartina alterniflora-derived biochar alone or in combination with effective microorganisms (EM) on the growth of Sesbania cannabina and soil quality in saline-alkali soil. To enhance this knowledge, a pot experiment with different EM treatments (without EM addition, EM-; with EM addition, EM+) and a gradient of biochar treatments (0%, B0; 0.5%, B1; 1.5%, B2; and 3%, B3; biochar weight/soil weight) was conducted. Our results showed that biochar addition alone and in combination with EM significantly increased seed germination, plant height, stem diameter, total biomass and plant nutrient uptake of S. cannabina. Biochar addition, EM addition and their interaction significantly decreased soil salt content efficiently and increased soil total carbon (TC), total nitrogen (TN), available phosphorus (AP) and available potassium (AK) but had little effect on soil pH. Biochar addition increased soil organic carbon, soil NH4+ and NO3-, microbial biomass carbon, and soil enzyme activities and these effects increased in strength when biochar and EM were present simultaneously. Of the treatments, the EM + B3 treatment had the largest effects in terms of inhibiting salinization, increasing soil fertility, elevating soil nutrients and enzyme activities, and improving plant growth. Moreover, the application of biochar and EM promoted the growth of S. cannabina by enhancing plant nutrient uptake, improving soil fertility (e.g., TN, AP, AK, NH4+ and NO3-), and elevating soil enzyme activities (urease and alkaline phosphatase activity). Overall, the integrated use of an appropriate biochar rate (3%) and EM for coastal saline-alkali soil could be an effective strategy to ameliorate soil salinity, improve soil quality and promote plant productivity.
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Affiliation(s)
- Qian Cui
- Shandong Key Laboratory of Eco-Environmental Science for Yellow River Delta, Binzhou University, Binzhou 256603, PR China
| | - Jiangbao Xia
- Shandong Key Laboratory of Eco-Environmental Science for Yellow River Delta, Binzhou University, Binzhou 256603, PR China.
| | - Hongjun Yang
- Shandong Key Laboratory of Eco-Environmental Science for Yellow River Delta, Binzhou University, Binzhou 256603, PR China
| | - Jingtao Liu
- Shandong Key Laboratory of Eco-Environmental Science for Yellow River Delta, Binzhou University, Binzhou 256603, PR China
| | - Pengshuai Shao
- Shandong Key Laboratory of Eco-Environmental Science for Yellow River Delta, Binzhou University, Binzhou 256603, PR China
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31
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Xiao R, Guo Y, Zhang M, Pan W, Wang JJ. Stronger network connectivity with lower diversity of soil fungal community was presented in coastal marshes after sixteen years of freshwater restoration. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 744:140623. [PMID: 32693270 DOI: 10.1016/j.scitotenv.2020.140623] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 06/26/2020] [Accepted: 06/28/2020] [Indexed: 06/11/2023]
Abstract
Freshwater input for salt marsh restoration in the Yellow River Delta induced Phragmites australis expansion and thus may cause shifts of soil fungi from halophilic to desalination-adapted species for increased litter decomposition. In this study, soil fungal communities of restored and natural salt marshes were determined to reveal further details of shift in soil fungal community and its probable prediction for salt marsh restoration. Our results showed a stronger network within Ascomycota (e.g. Sordariales, Aspergillus, Hypocreales and Cladosporium herbarum) in restored marshes, but with a lower diversity of halophilic taxa (e.g. Chytridiomycota and Nematoda) in comparison with natural salt marshes. Contrarily, the occurrence of Chytridiomycota, Ichthyosporea and Discicristoidea in the soil fungal networks of the natural salt marsh emphasized the importance of salt tolerant species at the land-sea transition zone. The Sordariales was dominant and had a strong correlation with other fungal species and aggregate associated soil organic carbon (SOC), which probably contributed to SOC accumulation in restored marshes. But the reduced halophilic species specific to salt marsh elucidated that the formation of monospecific stands of P. australis along with the freshwater input induced desalination to the saline habitats changed the native patterns of vegetation and soil organisms. As the buffer between terrestrial and marine systems, a single habitat type such as dense monocultures of P. australis must be avoided and diverse saltmarsh habitats across a salinity gradient should be reserved. In this way, the diversity and specificity of coastal halophytes and related microorganisms could be maintained and thus might confer benefits in balancing various functions of the salt marsh ecosystem and preserving the system's elasticity and resistance to stress.
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Affiliation(s)
- Rong Xiao
- College of Environment and Resources, Fuzhou University, Fuzhou 350108, China.
| | - Yutong Guo
- School of Ecology and Nature Conservation, Beijing Forestry University, Beijing 100083, China
| | - Mingxiang Zhang
- School of Ecology and Nature Conservation, Beijing Forestry University, Beijing 100083, China
| | - Wenbin Pan
- College of Environment and Resources, Fuzhou University, Fuzhou 350108, China
| | - Jian Jim Wang
- School of Plant, Environmental and Soil Sciences, Louisiana State Univ. Agricultural Center, Baton Rouge, LA 70803, USA
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Yang R, Li K, Fang J, Quan Q, Zhang C, Liu J. The Invasion of Alternanthera philoxeroides Increased Soil Organic Carbon in a River and a Constructed Wetland With Different Mechanisms. Front Ecol Evol 2020; 8. [DOI: 10.3389/fevo.2020.574528] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2024] Open
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33
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Zhu P, Wei W, Bai X, Wu N, Hou Y. Effects of invasive Rhus typhina L. on bacterial diversity and community composition in soil. ECOSCIENCE 2020. [DOI: 10.1080/11956860.2020.1753312] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Ping Zhu
- School of Life Sciences, Ludong University, Yantai, P.R. China
| | - Wei Wei
- School of Life Sciences, Ludong University, Yantai, P.R. China
| | - Xinfu Bai
- School of Life Sciences, Ludong University, Yantai, P.R. China
| | - Nan Wu
- School of Resources and Environmental Engineering, Ludong University, Yantai, P.R. China
| | - Yuping Hou
- School of Life Sciences, Ludong University, Yantai, P.R. China
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Venneman J, De Tender C, Debode J, Audenaert K, Baert G, Vermeir P, Cremelie P, Bekaert B, Landschoot S, Thienpondt B, Djailo BD, Vereecke D, Haesaert G. Sebacinoids within rhizospheric fungal communities associated with subsistence farming in the Congo Basin: a needle in each haystack. FEMS Microbiol Ecol 2020; 95:5524361. [PMID: 31247636 DOI: 10.1093/femsec/fiz101] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Accepted: 06/25/2019] [Indexed: 12/15/2022] Open
Abstract
The unique ecosystem of the Congolese rainforest has only scarcely been explored for its plant-fungal interactions. Here, we characterized the root fungal communities of field-grown maize and of Panicum from adjacent borders in the Congo Basin and assessed parameters that could shape them. The soil properties indicated that comparable poor soil conditions prevailed in fields and borders, illustrating the low input character of local subsistence farming. The rhizosphere fungal communities, dominated by ascomycetous members, were structured by plant species, slash-and-burn practices and soil P, pH and C/N ratio. Examining fungi with potential plant growth-promoting abilities, the glomeromycotan communities appeared to be affected by the same parameters, whereas the inconspicuous symbionts of the order Sebacinales seemed less susceptible to environmental and anthropogenic factors. Notwithstanding the low abundances at which they were detected, sebacinoids occurred in 87% of the field samples, implying that they represent a consistent taxon within indigenous fungal populations across smallholder farm sites. Pending further insight into their ecosystem functionality, these data suggest that Sebacinales are robust root inhabitants that might be relevant for on-farm inoculum development within sustainable soil fertility management in the Sub-Saharan region.
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Affiliation(s)
- Jolien Venneman
- Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Valentin Vaerwyckweg 1, BE-9000, Ghent, Belgium
| | - Caroline De Tender
- Plant Sciences Unit, Research Institute for Agriculture, Fisheries and Food (ILVO), Burg. Van Gansberghelaan 96, BE-9820, Merelbeke, Belgium.,Department of Applied Mathematics, Computer Science and Statistics, Faculty of Sciences, Ghent University, Krijgslaan 281, S9, BE-9000, Ghent, Belgium
| | - Jane Debode
- Plant Sciences Unit, Research Institute for Agriculture, Fisheries and Food (ILVO), Burg. Van Gansberghelaan 96, BE-9820, Merelbeke, Belgium
| | - Kris Audenaert
- Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Valentin Vaerwyckweg 1, BE-9000, Ghent, Belgium
| | - Geert Baert
- Department of Environment, Faculty of Bioscience Engineering, Ghent University, Valentin Vaerwyckweg 1, BE-9000, Ghent, Belgium
| | - Pieter Vermeir
- Department of Green Chemistry and Technology, Laboratory of Chemical Analysis (LCA), Faculty of Bioscience Engineering, Ghent University, Valentin Vaerwyckweg 1, BE-9000, Ghent, Belgium
| | - Pieter Cremelie
- Plant Sciences Unit, Research Institute for Agriculture, Fisheries and Food (ILVO), Burg. Van Gansberghelaan 96, BE-9820, Merelbeke, Belgium
| | - Boris Bekaert
- Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Valentin Vaerwyckweg 1, BE-9000, Ghent, Belgium
| | - Sofie Landschoot
- Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Valentin Vaerwyckweg 1, BE-9000, Ghent, Belgium
| | - Bert Thienpondt
- Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Valentin Vaerwyckweg 1, BE-9000, Ghent, Belgium
| | - Benoît Dhed'a Djailo
- Faculty of Science and Agriculture, Kisangani University, B.P. 2012, Kisangani, Democratic Republic of Congo
| | - Danny Vereecke
- Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Valentin Vaerwyckweg 1, BE-9000, Ghent, Belgium
| | - Geert Haesaert
- Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Valentin Vaerwyckweg 1, BE-9000, Ghent, Belgium
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Liu M, Feng F, Cai T, Tang S. Soil Microbial Community Response Differently to the Frequency and Strength of Freeze-Thaw Events in a Larix gmelinii Forest in the Daxing'an Mountains, China. Front Microbiol 2020; 11:1164. [PMID: 32582103 PMCID: PMC7283528 DOI: 10.3389/fmicb.2020.01164] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Accepted: 05/07/2020] [Indexed: 11/13/2022] Open
Abstract
Sustained climate warming increases the frequency and strength of soil freeze-thaw (FT) events, which strongly affect the properties of soil microbial communities. To explore the responses and mechanisms of the frequency and strength of freeze-thaw events on soil microbial communities, a lab-scale FT test was conducted on forest soil in permafrost region from the Daxing'an Mountains, China. The number of FT cycles (FTN) had a greater effect on microbial communities than FT temperature fluctuation (FTF). The FTN and FTF explained 20.9 and 10.8% of the variation in microbial community structure, respectively, and 22.9 and 11.6% of the variation in enzyme activities, respectively. The total and subgroup microbial biomass, the ratio of fungi to bacteria (F/B), and C- and N-hydrolyzing enzyme activities all decreased with an increase in FTN. Among microbial groups, arbuscular mycorrhizal fungi (AMF) were the most sensitive to FT events. Based on the changes of F/B and AMF, the reduction in soil carbon sequestration caused by frequent FT events can be explained from a perspective of microorganisms. Based on redundancy analysis and Mental Test, soil moisture, total organic carbon, and total nitrogen were the major factors affecting microorganisms in FT events. In the forest ecosystem, soil water and fertilizer were important factors to resist the damage of FT to microorganism, and sufficient water and fertilizer can lighten the damage of FT events to microorganisms. As a result of this study, the understanding of the responses of soil microorganisms to the variation in FT patterns caused by climate changes has increased, which will lead to better predictions of the effects of likely climate change on soil microorganisms.
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Affiliation(s)
- Minghui Liu
- College of Life Science, Northeast Forestry University, Harbin, China
| | - Fujuan Feng
- College of Life Science, Northeast Forestry University, Harbin, China
| | - Tijiu Cai
- Key Laboratory of Sustainable Forest Ecosystem Management-Ministry of Education, Northeast Forestry University, Harbin, China
- College of Forestry, Northeast Forestry University, Harbin, China
| | - Shijie Tang
- College of Life Science, Northeast Forestry University, Harbin, China
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36
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Fang J, Deng Y, Che R, Han C, Zhong W. Bacterial community composition in soils covered by different vegetation types in the Yancheng tidal marsh. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:21517-21532. [PMID: 32279258 DOI: 10.1007/s11356-020-08629-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2019] [Accepted: 03/26/2020] [Indexed: 06/11/2023]
Abstract
Coastal wetland vegetation plays an important role in maintaining ecological function and is a key factor affecting the soil bacterial community. Spartina alterniflora was introduced to the Yancheng tidal marsh to stabilize the sediments and gradually replaced the native plants. However, the changes in the soil bacterial community profile caused by S. alterniflora invasion are poorly characterized. Here, we used MiSeq sequencing to compare the composition of the bacterial community in soil at different depths under exotic S. alterniflora (SA), native Phragmites australis (PA), and native Suaeda salsa (SS). The results showed that the pH value was lower, but the salinity, soil organic carbon, total nitrogen, and number of 16S rRNA genes were higher in SA soils than in PA and SS soils. Overall, Proteobacteria was the dominant bacterial phylum, followed by Chloroflexi, Acidobacteria, Planctomycetes, Gemmatimonadetes, and Nitrospirae. Anaerolineae in the Chloroflexi phylum showed the greatest difference based on vegetation, accounting for 14.4% of the overall bacterial community in SA soils but only about 3.8% of those in PA and SS soils. The composition, interaction, and predicted functional profiles of the bacterial community in SA soils were significantly different from those in PA and SS soils, especially for functions related to the sulfur and nitrogen cycles. Salinity was negatively correlated with the Shannon index and accounted for 37.7% of the total variation in the bacterial community, making it the most important environmental factor. Our results showed the differences in bacterial community composition among different vegetation types and soil depths in the Yancheng tidal marsh, which provides a microbial basis for a better understanding of the ecological functions in this ecosystem.
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Affiliation(s)
- Jie Fang
- School of Geography Science, Nanjing Normal University, Nanjing, China
| | - Yongcui Deng
- School of Geography Science, Nanjing Normal University, Nanjing, China.
- Jiangsu Provincial Key Laboratory of Materials Cycling and Pollution Control, Nanjing, China.
| | - Rongxiao Che
- Institute of International Rivers and Eco-security, Yunnan University, Kunming, China
| | - Cheng Han
- School of Geography Science, Nanjing Normal University, Nanjing, China
| | - Wenhui Zhong
- School of Geography Science, Nanjing Normal University, Nanjing, China
- Jiangsu Provincial Key Laboratory of Materials Cycling and Pollution Control, Nanjing, China
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37
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Ge B, Jiang S, Yang L, Zhang H, Tang B. Succession of macrofaunal communities and environmental properties along a gradient of smooth cordgrass Spartina alterniflora invasion stages. MARINE ENVIRONMENTAL RESEARCH 2020; 156:104862. [PMID: 32174332 DOI: 10.1016/j.marenvres.2019.104862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2019] [Revised: 12/07/2019] [Accepted: 12/14/2019] [Indexed: 06/10/2023]
Abstract
The exotic species smooth cordgrass (Spartina alterniflora) is recognized as an important invasive species in China, introduced about 40 years ago. The consistent smooth cordgrass invasion significantly modified the coastal ecosystem. Understanding the ecological succession and mechanisms of wetland soil ecosystems is essential for biological conservation after the landscape change resulting from the smooth cordgrass invasion. In this study, five different invasion stages of a 16-year smooth cordgrass invasion sequence were identified in a coastal wetland as no invasion, initial invasion, young invasion, mature invasion, and senescing invasion. The succession of macrofaunal communities and environments were investigated along the gradient of invasion stages. The infauna decreased, and the epifauna increased along the invasion sequence. The significant differences of the communities were detected among the mud flats experiencing different invasion stages. The initial and young invasion stages of smooth cordgrass possibly promote the macrofaunal biodiversity, but biodiversity decreased at mature and senescing invasion stages. The ecological effect of smooth cordgrass invasion on macrofauna depended on the species' traits and the invasion stage. The environmental properties co-varied with invasion stages, and varied significantly among selected habitats. Total organic carbon (TOC), total nitrogen, and the carbon-nitrogen ratio (C/N) strongly related to the smooth cordgrass coverage, stem density, and height. C/N was identified as the key factor for shaping the environment by principal components analysis, and TOC for regulating the macrofaunal community by canonical correspondence analysis. The succession of macrofaunal communities should be considered as a comprehensive response to the variations on environmental properties co-varying with smooth cordgrass invasion in coastal wetlands.
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Affiliation(s)
- Baoming Ge
- Jiangsu Key Laboratory for Bioresources of Saline Soils, Jiangsu Provincial Key Laboratory of Coastal Wetland Bioresources and Environmental Protection, Jiangsu Synthetic Innovation Center for Coastal Bio-agriculture, Yancheng Teachers University, 2 South Xiwang Avenue, Yancheng, 224007, China.
| | - Senhao Jiang
- Jiangsu Key Laboratory for Bioresources of Saline Soils, Jiangsu Provincial Key Laboratory of Coastal Wetland Bioresources and Environmental Protection, Jiangsu Synthetic Innovation Center for Coastal Bio-agriculture, Yancheng Teachers University, 2 South Xiwang Avenue, Yancheng, 224007, China
| | - Li Yang
- Jiangsu Key Laboratory for Bioresources of Saline Soils, Jiangsu Provincial Key Laboratory of Coastal Wetland Bioresources and Environmental Protection, Jiangsu Synthetic Innovation Center for Coastal Bio-agriculture, Yancheng Teachers University, 2 South Xiwang Avenue, Yancheng, 224007, China
| | - Huabin Zhang
- Jiangsu Key Laboratory for Bioresources of Saline Soils, Jiangsu Provincial Key Laboratory of Coastal Wetland Bioresources and Environmental Protection, Jiangsu Synthetic Innovation Center for Coastal Bio-agriculture, Yancheng Teachers University, 2 South Xiwang Avenue, Yancheng, 224007, China
| | - Boping Tang
- Jiangsu Key Laboratory for Bioresources of Saline Soils, Jiangsu Provincial Key Laboratory of Coastal Wetland Bioresources and Environmental Protection, Jiangsu Synthetic Innovation Center for Coastal Bio-agriculture, Yancheng Teachers University, 2 South Xiwang Avenue, Yancheng, 224007, China
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38
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Qiu Z, Tang J, Chen J, Zhang Q. Remediation of cadmium-contaminated soil with biochar simultaneously improves biochar's recalcitrance. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 256:113436. [PMID: 31672351 DOI: 10.1016/j.envpol.2019.113436] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2019] [Revised: 10/16/2019] [Accepted: 10/17/2019] [Indexed: 05/22/2023]
Abstract
Biochar sequesters cadmium (Cd) by immobilisation, but the process is often less effective in field trials than in the laboratory. Therefore, the involvement of soil components should be considered for predicting field conditions that could potentially improve this process. Here, we used biochar derived from Spartina alterniflora as the amendment for Cd-contaminated soil. In simulation trials, a mixture of kaolin, a representative soil model component, and S. alterniflora-derived biochar immobilised Cd by forming silicon-aluminium-Cd-containing complexes. Interestingly, the biochar recalcitrance index value increased from 48% to 53%-56% because of the formation of physical barriers consisting of kaolinite minerals and Cd complexes. Pot trials were performed using Brassica chinensis for evaluating the effect of S. alterniflora-derived biochar on plant growth in Cd-contaminated soil. The bio-concentration factor values in B. chinensis were 24%-31% after soil remediation with biochar than in control plants. In summary, these results indicated that soil minerals facilitated Cd sequestration by biochar, which reduced Cd bioavailability and improved the recalcitrance of this soil amendment. Thus, mechanisms for effective Cd remediation should include biochar-soil interactions.
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Affiliation(s)
- Zhen Qiu
- Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, 200241 Shanghai, China.
| | - Jiawen Tang
- Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, 200241 Shanghai, China.
| | - Jinhuan Chen
- Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, 200241 Shanghai, China.
| | - Qiuzhuo Zhang
- Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, 200241 Shanghai, China; Institute of Eco-Chongming, No. 20 Cuiniao Road, Chen Jiazhen, Shanghai 200062, China.
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39
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Xie B, Han G, Qiao P, Mei B, Wang Q, Zhou Y, Zhang A, Song W, Guan B. Effects of mechanical and chemical control on invasive Spartina alterniflora in the Yellow River Delta, China. PeerJ 2019; 7:e7655. [PMID: 31534866 PMCID: PMC6730535 DOI: 10.7717/peerj.7655] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2019] [Accepted: 08/10/2019] [Indexed: 11/20/2022] Open
Abstract
Spartina alterniflora is one of the most noxious invasive plants in China and many other regions. Exploring environmentally friendly, economic and effective techniques for controlling Spartina alterniflora is of great significance for the management of coastal wetlands. In the present study, different approaches, including mowing and waterlogging, mowing and tilling and herbicide application, were used to control Spartina alterniflora. The results suggest that the integrated approach of mowing and waterlogging could eradicate Spartina alterniflora, the herbicide haloxyfop-r-methyl could kill almost all the Spartina alterniflora, and the integrated approach of mowing and tilling at the end of the growing season was a perfect way to inhibit the germination of Spartina alterniflora in the following year. However, no matter which control approach is adopted, secondary invasion of Spartina alterniflora must be avoided. Otherwise, all the efforts will be wasted in a few years.
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Affiliation(s)
- Baohua Xie
- Key Laboratory of Coastal Zone Environmental Processes and Ecological Remediation, CAS, Shandong Provincial Key Laboratory of Coastal Environmental Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, China
| | - Guangxuan Han
- Key Laboratory of Coastal Zone Environmental Processes and Ecological Remediation, CAS, Shandong Provincial Key Laboratory of Coastal Environmental Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, China
| | - Peiyang Qiao
- Key Laboratory of Coastal Zone Environmental Processes and Ecological Remediation, CAS, Shandong Provincial Key Laboratory of Coastal Environmental Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, China.,College of Ecology and Environment, Inner Mongolia University, Hohhot, China
| | - Baoling Mei
- College of Ecology and Environment, Inner Mongolia University, Hohhot, China
| | - Qing Wang
- Key Laboratory of Coastal Zone Environmental Processes and Ecological Remediation, CAS, Shandong Provincial Key Laboratory of Coastal Environmental Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, China
| | - Yingfeng Zhou
- Administration Bureau of the Yellow River Delta National Nature Reserve, Dongying, China
| | - Anfeng Zhang
- Administration Bureau of the Yellow River Delta National Nature Reserve, Dongying, China
| | - Weimin Song
- Key Laboratory of Coastal Zone Environmental Processes and Ecological Remediation, CAS, Shandong Provincial Key Laboratory of Coastal Environmental Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, China
| | - Bo Guan
- Key Laboratory of Coastal Zone Environmental Processes and Ecological Remediation, CAS, Shandong Provincial Key Laboratory of Coastal Environmental Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, China
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