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Gou X, Reich PB, Qiu L, Shao M, Wei G, Wang J, Wei X. Leguminous plants significantly increase soil nitrogen cycling across global climates and ecosystem types. GLOBAL CHANGE BIOLOGY 2023; 29:4028-4043. [PMID: 37186000 DOI: 10.1111/gcb.16742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Accepted: 04/17/2023] [Indexed: 05/17/2023]
Abstract
Leguminous plants are an important component of terrestrial ecosystems and significantly increase soil nitrogen (N) cycling and availability, which affects productivity in most ecosystems. Clarifying whether the effects of legumes on N cycling vary with contrasting ecosystem types and climatic regions is crucial for understanding and predicting ecosystem processes, but these effects are currently unknown. By conducting a global meta-analysis, we revealed that legumes increased the soil net N mineralization rate (Rmin ) by 67%, which was greater than the recently reported increase associated with N deposition (25%). This effect was similar for tropical (53%) and temperate regions (81%) but was significantly greater in grasslands (151%) and forests (74%) than in croplands (-3%) and was greater in in situ incubation (101%) or short-term experiments (112%) than in laboratory incubation (55%) or long-term experiments (37%). Legumes significantly influenced the dependence of Rmin on N fertilization and experimental factors. The Rmin was significantly increased by N fertilization in the nonlegume soils, but not in the legume soils. In addition, the effects of mean annual temperature, soil nutrients and experimental duration on Rmin were smaller in the legume soils than in the nonlegume soils. Collectively, our results highlighted the significant positive effects of legumes on soil N cycling, and indicated that the effects of legumes should be elucidated when addressing the response of soils to plants.
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Affiliation(s)
- Xiaomei Gou
- State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Northwest A&F University, Yangling, Shaanxi, China
- Research Center of Soil and Water Conservation and Ecological Environment, Ministry of Education, Chinese Academy of Sciences, Yangling, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Peter B Reich
- Department of Forest Resources, University of Minnesota, St. Paul, Minnesota, USA
- Institute for Global Change Biology, University of Michigan, Ann Arbor, Michigan, USA
| | - Liping Qiu
- State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Northwest A&F University, Yangling, Shaanxi, China
- Research Center of Soil and Water Conservation and Ecological Environment, Ministry of Education, Chinese Academy of Sciences, Yangling, China
| | - Mingan Shao
- State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Northwest A&F University, Yangling, Shaanxi, China
- Research Center of Soil and Water Conservation and Ecological Environment, Ministry of Education, Chinese Academy of Sciences, Yangling, China
- CAS Center for Excellence in Quaternary Science and Global Change, Xi'an, Shaanxi, China
| | - Gehong Wei
- State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Northwest A&F University, Yangling, Shaanxi, China
| | - Jingjing Wang
- State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Northwest A&F University, Yangling, Shaanxi, China
| | - Xiaorong Wei
- State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Northwest A&F University, Yangling, Shaanxi, China
- Research Center of Soil and Water Conservation and Ecological Environment, Ministry of Education, Chinese Academy of Sciences, Yangling, China
- CAS Center for Excellence in Quaternary Science and Global Change, Xi'an, Shaanxi, China
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Zuo H, Xu W, Liu Z, Smaill SJ, Zhou X. Long-term plant diversity increases soil extractable organic carbon and nitrogen contents in a subtropical forest. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 878:163118. [PMID: 36996976 DOI: 10.1016/j.scitotenv.2023.163118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 03/19/2023] [Accepted: 03/23/2023] [Indexed: 05/13/2023]
Abstract
Plant diversity is one of the various factors influencing ecosystem functions such as soil carbon (C) and nitrogen (N) stocks. Soil extractable organic carbon (EOC) and nitrogen (EON) contents are active fractions in soil organic matter, but little is known about the impact of variations in long-term plant diversity on soil EOC and EON contents in forest ecosystems. Utilizing the Biodiversity-Ecosystem Functioning Experiment China platform, we selected long-term plant diversity level treatments, distinguished the functional types of evergreen and deciduous plants, and explored their effects on soil EOC and EON contents. The results showed that soil EOC and EON contents increased significantly with greater plant diversity, which is mainly attributed to proportional increases in complementary effects. After distinguishing plant functional types, we did not find the strong complementary effects at the mixed planting of evergreen and deciduous tree species. Within two-species planting mixtures, evergreen tree species can increase soil EON compared to deciduous tree species. Cyclobalanopsis have a strong carbon and nitrogen storage capacity, suggesting that increasing the plant diversity and the proportion of Cyclobalanopsis planting in forest management will promote carbon and nitrogen accumulation in forest soil. These findings enhance our understanding of long-term forest C and N cycling processes and also provide theoretical support for managing forest soil C sinks.
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Affiliation(s)
- Hanling Zuo
- Zhejiang Tiantong Forest Ecosystem National Observation and Research Station, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Wenshi Xu
- Zhejiang Tiantong Forest Ecosystem National Observation and Research Station, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Zhaoying Liu
- Zhejiang Tiantong Forest Ecosystem National Observation and Research Station, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Simeon J Smaill
- Scion, PO Box 29237, Riccarton, Christchurch 8440, New Zealand
| | - Xiaoqi Zhou
- Zhejiang Tiantong Forest Ecosystem National Observation and Research Station, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China.
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Yu Q, Hanif A, Rao X, He J, Sun D, Liu S, He D, Shen W. Long‐term restoration altered edaphic properties and soil microbial communities in forests: evidence from four plantations of southern China. Restor Ecol 2021. [DOI: 10.1111/rec.13354] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Qingshui Yu
- Department of Ecology, College of Urban and Environmental Sciences, Key Laboratory for Earth Surface Processes of the Ministry of Education Peking University Beijing 100871 China
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystem, South China Botanical Garden (SCBG) Chinese Academy of Sciences Guangzhou 510650 China
| | - Abu Hanif
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystem, South China Botanical Garden (SCBG) Chinese Academy of Sciences Guangzhou 510650 China
- Department of Agroforestry and Environment Hajee Mohammad Danesh Science and Technology University Dinajpur 5200 Bangladesh
| | - Xingquan Rao
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystem, South China Botanical Garden (SCBG) Chinese Academy of Sciences Guangzhou 510650 China
| | - Jinhong He
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystem, South China Botanical Garden (SCBG) Chinese Academy of Sciences Guangzhou 510650 China
| | - Dan Sun
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystem, South China Botanical Garden (SCBG) Chinese Academy of Sciences Guangzhou 510650 China
| | - Suping Liu
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystem, South China Botanical Garden (SCBG) Chinese Academy of Sciences Guangzhou 510650 China
| | - Dan He
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystem, South China Botanical Garden (SCBG) Chinese Academy of Sciences Guangzhou 510650 China
| | - Weijun Shen
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystem, South China Botanical Garden (SCBG) Chinese Academy of Sciences Guangzhou 510650 China
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4
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Assessments of foliar functional traits of understory shrubs in two 13-year reforested plantations in subtropical China. Glob Ecol Conserv 2020. [DOI: 10.1016/j.gecco.2020.e01202] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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5
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Wang W, Li Y, Zhao Q, Liu X, Long F, Mo Q. Effects of labile carbon and phosphorus addition on N transformations with N- vs. non-N-fixing tree plantations. Ecosphere 2018. [DOI: 10.1002/ecs2.2165] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Wenjuan Wang
- College of Forestry and Landscape Architecture; South China Agricultural University; Guangzhou 510642 China
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems; South China Botanical Garden; Chinese Academy of Sciences; Guangzhou 510650 China
| | - Yingwen Li
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems; South China Botanical Garden; Chinese Academy of Sciences; Guangzhou 510650 China
| | - Qian Zhao
- College of Forestry and Landscape Architecture; South China Agricultural University; Guangzhou 510642 China
| | - Xiaodong Liu
- College of Forestry and Landscape Architecture; South China Agricultural University; Guangzhou 510642 China
| | - Fengling Long
- College of Forestry and Landscape Architecture; South China Agricultural University; Guangzhou 510642 China
| | - Qifeng Mo
- College of Forestry and Landscape Architecture; South China Agricultural University; Guangzhou 510642 China
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems; South China Botanical Garden; Chinese Academy of Sciences; Guangzhou 510650 China
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Yu S, Chen Y, Zhao J, Fu S, Li Z, Xia H, Zhou L. Temperature sensitivity of total soil respiration and its heterotrophic and autotrophic components in six vegetation types of subtropical China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 607-608:160-167. [PMID: 28689120 DOI: 10.1016/j.scitotenv.2017.06.194] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Revised: 06/23/2017] [Accepted: 06/23/2017] [Indexed: 06/07/2023]
Abstract
The temperature sensitivity of soil respiration (Q10) is a key parameter for estimating the feedback of soil respiration to global warming. The Q10 of total soil respiration (Rt) has been reported to have high variability at both local and global scales, and vegetation type is one of the most important drivers. However, little is known about how vegetation types affect the Q10 of soil heterotrophic (Rh) and autotrophic (Ra) respirations, despite their contrasting roles in soil carbon sequestration and ecosystem carbon cycles. In the present study, five typical plantation forests and a naturally developed shrub and herb land in subtropical China were selected for investigation of soil respiration. Trenching was conducted to separate Rh and Ra in each vegetation type. The results showed that both Rt and Rh were significantly correlated with soil temperature in all vegetation types, whereas Ra was significantly correlated with soil temperature in only four vegetation types. Moreover, on average, soil temperature explained only 15.0% of the variation in Ra in the six vegetation types. These results indicate that soil temperature may be not a primary factor affecting Ra. Therefore, modeling of Ra based on its temperature sensitivity may not always be valid. The Q10 of Rh was significantly affected by vegetation types, which indicates that the response of the soil carbon pool to climate warming may vary with vegetation type. In contrast, differences in neither the Q10 of Rt nor that of Ra among these vegetation types were significant. Additionally, variation in the Q10 of Rt among vegetation types was negatively related to fine root biomass, whereas the Q10 of Rh was mostly related to total soil nitrogen. However, the Q10 of Ra was not correlated with any of the environmental variables monitored in this study. These results emphasize the importance of independently studying the temperature sensitivity of Rt and its heterotrophic and autotrophic components.
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Affiliation(s)
- Shiqin Yu
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yuanqi Chen
- Hunan Province Key Laboratory of Coal Resources Clean-utilization and Mine Environment Protection, Hunan University of Science and Technology, Xiangtan 411201, China
| | - Jie Zhao
- Key Laboratory of Agro-Ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China
| | - Shenglei Fu
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China; College of Environment and Planning, Henan University, Kaifeng 475004, China
| | - Zhian Li
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China
| | - Hanping Xia
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China
| | - Lixia Zhou
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China.
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Dynamics of Understory Shrub Biomass in Six Young Plantations of Southern Subtropical China. FORESTS 2017. [DOI: 10.3390/f8110419] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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8
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Liu W, Wu J, Fan H, Duan H, Li Q, Yuan Y, Zhang H. Estimations of evapotranspiration in an age sequence of Eucalyptus plantations in subtropical China. PLoS One 2017; 12:e0174208. [PMID: 28399174 PMCID: PMC5388327 DOI: 10.1371/journal.pone.0174208] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2016] [Accepted: 03/06/2017] [Indexed: 11/18/2022] Open
Abstract
Eucalyptus species are widely planted for reforestation in subtropical China. However, the effects of Eucalyptus plantations on the regional water use remain poorly understood. In an age sequence of 2-, 4- and 6-year-old Eucalyptus plantations, the tree water use and soil evaporation were examined by linking model estimations and field observations. Results showed that annual evapotranspiration of each age sequence Eucalyptus plantations was 876.7, 944.1 and 1000.7 mm, respectively, accounting for 49.81%, 53.64% and 56.86% of the annual rainfall. In addition, annual soil evaporations of 2-, 4- and 6-year-old were 318.6, 336.1, and 248.7 mm of the respective Eucalyptus plantations. Our results demonstrated that Eucalyptus plantations would potentially reduce water availability due to high evapotranspiration in subtropical regions. Sustainable management strategies should be implemented to reduce water consumption in Eucalyptus plantations in the context of future climate change scenarios such as drought and warming.
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Affiliation(s)
- Wenfei Liu
- Jiangxi Provincial Key Laboratory for Restoration of Degraded Ecosystems & Watershed Ecohydrology, Nanchang Institute of Technology, Nanchang, China
| | - Jianping Wu
- Jiangxi Provincial Key Laboratory for Restoration of Degraded Ecosystems & Watershed Ecohydrology, Nanchang Institute of Technology, Nanchang, China
| | - Houbao Fan
- Jiangxi Provincial Key Laboratory for Restoration of Degraded Ecosystems & Watershed Ecohydrology, Nanchang Institute of Technology, Nanchang, China
- * E-mail:
| | - Honglang Duan
- Jiangxi Provincial Key Laboratory for Restoration of Degraded Ecosystems & Watershed Ecohydrology, Nanchang Institute of Technology, Nanchang, China
| | - Qiang Li
- Department of Earth, Environmental and Geographic Sciences, University of British Columbia (Okanagan), Kelowna, BC, Canada
| | - Yinghong Yuan
- Jiangxi Provincial Key Laboratory for Restoration of Degraded Ecosystems & Watershed Ecohydrology, Nanchang Institute of Technology, Nanchang, China
| | - Hao Zhang
- Jiangxi Provincial Key Laboratory for Restoration of Degraded Ecosystems & Watershed Ecohydrology, Nanchang Institute of Technology, Nanchang, China
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Reforestation in southern China: revisiting soil N mineralization and nitrification after 8 years restoration. Sci Rep 2016; 6:19770. [PMID: 26794649 PMCID: PMC4726222 DOI: 10.1038/srep19770] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2015] [Accepted: 12/03/2015] [Indexed: 11/27/2022] Open
Abstract
Nitrogen availability and tree species selection play important roles in reforestation. However, long-term field studies on the effects and mechanisms of tree species composition on N transformation are very limited. Eight years after tree seedlings were planted in a field experiment, we revisited the site and tested how tree species composition affects the dynamics of N mineralization and nitrification. Both tree species composition and season significantly influenced the soil dissolved organic carbon (DOC) and nitrogen (DON). N-fixing Acacia crassicarpa monoculture had the highest DON, and 10-mixed species plantation had the highest DOC. The lowest DOC and DON concentrations were both observed in Eucalyptus urophylla monoculture. The tree species composition also significantly affected net N mineralization rates. The highest rate of net N mineralization was found in A. crassicarpa monoculture, which was over twice than that in Castanopsis hystrix monoculture. The annual net N mineralization rates of 10-mixed and 30-mixed plantations were similar as that of N-fixing monoculture. Since mixed plantations have good performance in increasing soil DOC, DON, N mineralization and plant biodiversity, we recommend that mixed species plantations should be used as a sustainable approach for the restoration of degraded land in southern China.
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Mylliemngap W, Nath D, Barik SK. Changes in vegetation and nitrogen mineralization during recovery of a montane subtropical broadleaved forest in North-eastern India following anthropogenic disturbance. Ecol Res 2015. [DOI: 10.1007/s11284-015-1309-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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11
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Response of plant nutrient stoichiometry to fertilization varied with plant tissues in a tropical forest. Sci Rep 2015; 5:14605. [PMID: 26416169 PMCID: PMC4586514 DOI: 10.1038/srep14605] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2014] [Accepted: 08/21/2015] [Indexed: 11/08/2022] Open
Abstract
Plant N:P ratios are widely used as indices of nutrient limitation in terrestrial ecosystems, but the response of these metrics in different plant tissues to altered N and P availability and their interactions remains largely unclear. We evaluated changes in N and P concentrations, N:P ratios of new leaves (<1 yr), older leaves (>1 yr), stems and mixed fine roots of seven species after 3-years of an N and P addition experiment in a tropical forest. Nitrogen addition only increased fine root N concentrations. P addition increased P concentrations among all tissues. The N × P interaction reduced leaf and stem P concentrations, suggesting a negative effect of N addition on P concentrations under P addition. The reliability of using nutrient ratios as indices of soil nutrient availability varied with tissues: the stoichiometric metrics of stems and older leaves were more responsive indicators of changed soil nutrient availability than those of new leaves and fine roots. However, leaf N:P ratios can be a useful indicator of inter-specific variation in plant response to nutrients availability. This study suggests that older leaf is a better choice than other tissues in the assessment of soil nutrient status and predicting plant response to altered nutrients using nutrients ratios.
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12
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Carbon Storage and Allocation Pattern in Plant Biomass among Different Forest Plantation Stands in Guangdong, China. FORESTS 2015. [DOI: 10.3390/f6030794] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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13
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Wang F, Li J, Wang X, Zhang W, Zou B, Neher DA, Li Z. Nitrogen and phosphorus addition impact soil N₂O emission in a secondary tropical forest of South China. Sci Rep 2014; 4:5615. [PMID: 25001013 PMCID: PMC4085593 DOI: 10.1038/srep05615] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2014] [Accepted: 06/20/2014] [Indexed: 11/09/2022] Open
Abstract
Nutrient availability greatly regulates ecosystem processes and functions of tropical forests. However, few studies have explored impacts of N addition (aN), P addition (aP) and N × P interaction on tropical forests N₂O fluxes. We established an N and P addition experiment in a tropical forest to test whether: (1) N addition would increase N₂O emission and nitrification, and (2) P addition would increase N₂O emission and N transformations. Nitrogen and P addition had no effect on N mineralization and nitrification. Soil microbial biomass was increased following P addition in wet seasons. aN increased 39% N₂O emission as compared to control (43.3 μgN₂O-N m(-2)h(-1)). aP did not increase N₂O emission. Overall, N₂O emission was 60% greater for aNP relative to the control, but significant difference was observed only in wet seasons, when N₂O emission was 78% greater for aNP relative to the control. Our results suggested that increasing N deposition will enhance soil N₂O emission, and there would be N × P interaction on N₂O emission in wet seasons. Given elevated N deposition in future, P addition in this tropical soil will stimulate soil microbial activities in wet seasons, which will further enhance soil N₂O emission.
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Affiliation(s)
- Faming Wang
- 1] Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510160, PR China [2]
| | - Jian Li
- 1] Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510160, PR China [2]
| | - Xiaoli Wang
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510160, PR China
| | - Wei Zhang
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510160, PR China
| | - Bi Zou
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510160, PR China
| | - Deborah A Neher
- Department of Plant and Soil Science, University of Vermont, Burlington, VT 05405, U.S.A
| | - Zhian Li
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510160, PR China
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Wang F, Li J, Zou B, Xu X, Li Z. Effect of prescribed fire on soil properties and N transformation in two vegetation types in South China. ENVIRONMENTAL MANAGEMENT 2013; 51:1164-1173. [PMID: 23609305 DOI: 10.1007/s00267-013-0044-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2012] [Accepted: 03/03/2013] [Indexed: 06/02/2023]
Abstract
Prescribed fire is a common site preparation practice in forest management in southern China. However, the effect of fire on soil properties and N transformations is still poorly understood in this region. In this study, soil properties and N transformations in burned and unburned site of two vegetation types (Eucalyptus plantation and shrubland) were compared in rainy and dry seasons after 2 years' prescribed fire. Soil pH and soil NH4-N were all higher in the burned site compared to the unburned control. Furthermore, burned sites had 30-40 % lower of soil total phosphorus than conspecific unburned sites. There was no difference in soil organic matter, total N, soil exchangeable cations, available P or NO3-N. Nitrogen mineralization rate of 0-5 cm soil in the unburned site ranged from 8.24 to 11.6 mg N kg(-1) soil month(-1) in the rainy season, compared to a lower level of 4.82-5.25 mg N kg(-1) soil month(-1) in the burned sites. In contrast, 0-5 cm layer nitrification rate was overall 2.47 mg N kg(-1) soil month(-1) in the rainy season, and was not significantly affected by burning. The reduced understory vegetation coverage after burning may be responsible for the higher soil NH4-N in the burned site. This study highlights that a better understanding the effect of prescribed burning on soil nutrients cycling would provide a critical foundation for management decision and be beneficial to afforestation in southern China.
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Affiliation(s)
- Faming Wang
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510160, People's Republic of China
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