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Liu H, Han H, Zhang C, Yu X, Nie W, Shao Q, Yang P, Li X, Yang Y, Cao H. Patterns of bacterial distance decay and community assembly in different land-use types as influenced by tillage management and soil layers. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 266:115595. [PMID: 37839185 DOI: 10.1016/j.ecoenv.2023.115595] [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: 05/05/2023] [Revised: 10/09/2023] [Accepted: 10/11/2023] [Indexed: 10/17/2023]
Abstract
Land use and cover change are major factors driving global change and greatly impact terrestrial organisms, especially soil microbial diversity. Little is known, however, about bacterial diversity, distribution patterns and assembly processes across different land use types. In this study, therefore, we conducted a large-scale field survey of 48 sampling sites, encompassing different land use types in Xuancheng city, China, with different degrees of soil disturbance and different soil horizons. The distance-decay relationships (DDRs), assembly processes and the spatial patterns of soil bacterial communities were investigated based on high-throughput sequencing data. We found that the DDRs might be weakened by anthropogenic disturbances, which were not observed in tilled soils, while a decreasing trend was observed along the soil horizon in untilled soils. The relative importance of environmental factors and geographic distance varied with soil tillage. Specifically, bacterial communities in tilled soils were driven by non-spatially autocorrelated environmental factors, while untilled soils were more susceptible to geographic distance. In addition, the heterogeneity of soil properties, as well as the differences in soil bacterial niche width and niche overlap, determined the assembly processes of the bacterial community, resulting in opposite trends along the soil layers in tilled and untilled soils. These findings expand the current understanding of the biogeography of soil bacterial communities across different land use types.
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Affiliation(s)
- Hao Liu
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture and rural affairs, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Heming Han
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture and rural affairs, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Cunzhi Zhang
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture and rural affairs, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Xiaowei Yu
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture and rural affairs, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Wenfang Nie
- Center for Plantation Management Services, Agricultural and Rural Bureau, Xuancheng 242000, China
| | - Qiuyun Shao
- Center for Plantation Management Services, Agricultural and Rural Bureau, Xuancheng 242000, China
| | - Ping Yang
- Center for Plantation Management Services, Agricultural and Rural Bureau, Xuancheng 242000, China
| | - Xiang Li
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Yang Yang
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China.
| | - Hui Cao
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture and rural affairs, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China.
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Vindušková O, Deckmyn G, Bortier M, De Boeck HJ, Liu Y, Nijs I. Combined effects of soil 3D spatial heterogeneity and biotic spatial heterogeneity (plant clumping) on ecosystem processes in grasslands. Ecol Evol 2023; 13:e10604. [PMID: 37881224 PMCID: PMC10597742 DOI: 10.1002/ece3.10604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 09/11/2023] [Accepted: 09/11/2023] [Indexed: 10/27/2023] Open
Abstract
Soil heterogeneity has been shown to enhance plant diversity, but its effect on grassland productivity is less clear. Even less is known about the effect of plant clumping (intraspecific aggregation) and its potential interaction with soil heterogeneity. The combined effects of soil 3D spatial heterogeneity and species clumping were experimentally studied in grassland mesocosms consisting of four grassland species. These species were planted in three patterns (i.e. completely mixed, clumped by 9 or 36 individuals of the same species) on soils with heterogeneous cells of alternating nutrient-poor and rich soil differing in size from 0 (mixed soil) to 12, 24, and 48 cm (complete poor or rich mesocosm). Moderate soil cell sizes (12-24 cm) consistently increased whole-mesocosm aboveground productivity by more than 20%, which mainly originated from the increased growth of the plants growing on the poor soil cells. In contrast, total mesocosm productivity was not affected by species clumping although there were some species-specific effects, both of clumping and of the interaction of clumping with soil heterogeneity. Our results show that intermediate soil heterogeneity promotes productivity. Clumping can improve the growth of inferior species, thus promoting coexistence, without affecting overall productivity. We found no interaction effect of clumping and soil heterogeneity on productivity at the community level and some minor species-specific effects.
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Affiliation(s)
- O. Vindušková
- Plants and Ecosystems (PLECO)Department of Biology, University of AntwerpWilrijkBelgium
- Institute for Environmental StudiesFaculty of Science, Charles UniversityPragueCzech Republic
| | - G. Deckmyn
- Plants and Ecosystems (PLECO)Department of Biology, University of AntwerpWilrijkBelgium
| | - M. Bortier
- Plants and Ecosystems (PLECO)Department of Biology, University of AntwerpWilrijkBelgium
| | - H. J. De Boeck
- Plants and Ecosystems (PLECO)Department of Biology, University of AntwerpWilrijkBelgium
- School of Ecology and Environmental SciencesYunnan UniversityKunmingChina
| | - Y. Liu
- Plants and Ecosystems (PLECO)Department of Biology, University of AntwerpWilrijkBelgium
- State Key Laboratory of Herbage Improvement and Grassland Agro‐ecosystems, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural AffairsCollege of Pastoral Agriculture Science and Technology, Lanzhou UniversityLanzhouChina
| | - I. Nijs
- Plants and Ecosystems (PLECO)Department of Biology, University of AntwerpWilrijkBelgium
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Archidona‐Yuste A, Wiegand T, Eisenhauer N, Cantalapiedra‐Navarrete C, Palomares‐Rius JE, Castillo P. Agriculture causes homogenization of plant‐feeding nematode communities at the regional scale. J Appl Ecol 2021. [DOI: 10.1111/1365-2664.14025] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Antonio Archidona‐Yuste
- Department of Ecological Modelling Helmholtz Centre for Environmental Research ‐ UFZ Leipzig Germany
- German Centre for Integrative Biodiversity Research (iDiv) Halle‐Jena‐Leipzig Leipzig Germany
| | - Thorsten Wiegand
- Department of Ecological Modelling Helmholtz Centre for Environmental Research ‐ UFZ Leipzig Germany
- German Centre for Integrative Biodiversity Research (iDiv) Halle‐Jena‐Leipzig Leipzig Germany
| | - Nico Eisenhauer
- German Centre for Integrative Biodiversity Research (iDiv) Halle‐Jena‐Leipzig Leipzig Germany
- Institute of Biology Leipzig University Leipzig Germany
| | | | - Juan E. Palomares‐Rius
- Instituto de Agricultura Sostenible (IAS) Consejo Superior de Investigaciones Científicas (CSIC) Córdoba Spain
| | - Pablo Castillo
- Instituto de Agricultura Sostenible (IAS) Consejo Superior de Investigaciones Científicas (CSIC) Córdoba Spain
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Arias-Ortiz A, Masqué P, Glass L, Benson L, Kennedy H, Duarte CM, Garcia-Orellana J, Benitez-Nelson CR, Humphries MS, Ratefinjanahary I, Ravelonjatovo J, Lovelock CE. Losses of Soil Organic Carbon with Deforestation in Mangroves of Madagascar. Ecosystems 2020. [DOI: 10.1007/s10021-020-00500-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Stover HJ, Henry HAL. Soil Homogenization Modifies Productivity, Nitrogen Retention and Decomposition in Restored Grassland. Ecosystems 2020. [DOI: 10.1007/s10021-019-00401-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Stover HJ, Henry HAL. Legacy effects of soil homogenization on tallgrass prairie restoration: toward resolved understanding of the relationship between soil heterogeneity and plant species diversity. Restor Ecol 2019. [DOI: 10.1111/rec.13049] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Holly J. Stover
- Department of BiologyWestern University, 1151 Richmond Street London ON N6A 5B7 Canada
| | - Hugh A. L. Henry
- Department of BiologyWestern University, 1151 Richmond Street London ON N6A 5B7 Canada
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Stover HJ, Henry HAL. Interactions between soil heterogeneity and freezing: Implications for grassland plant diversity and relative species abundances. GLOBAL CHANGE BIOLOGY 2019; 25:2275-2284. [PMID: 30963661 DOI: 10.1111/gcb.14645] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Revised: 02/11/2019] [Accepted: 03/28/2019] [Indexed: 06/09/2023]
Abstract
Plant stress resulting from soil freezing is expected to increase in northern temperate regions over the next century due to reductions in snow cover caused by climate change. Within plant communities, soil spatial heterogeneity can potentially buffer the effects of plant freezing stress by increasing the availability of soil microsites that function as microrefugia. Moreover, increased species richness resulting from soil heterogeneity can increase the likelihood of stress-tolerant species being present in a community. We used a field experiment to examine interactions between soil heterogeneity and increased freezing intensity (achieved via snow removal) on plant abundance and diversity in a grassland. Patches of topsoil were mixed with either sand or woodchips to create heterogeneous and homogeneous treatments, and plant community responses to snow removal were assessed over three growing seasons. Soil heterogeneity interacted significantly with snow removal, but it either buffered or exacerbated the snow removal response depending on the specific substrate (sand vs. woodchips) and plant functional group. In turn, snow removal influenced plant responses to soil heterogeneity; for example, adventive forb cover responded to increased heterogeneity under ambient snow cover, but this effect diminished with snow removal. Our results reveal that soil heterogeneity can play an important role in determining plant responses to changes in soil freezing stress resulting from global climate change. While the deliberate creation of soil microsites in ecological restoration projects as a land management practice could increase the frequency of microrefugia that mitigate plant community responses to increased freezing stress, the design of these microsites must be optimized, given that soil heterogeneity also has the potential to exacerbate freezing stress responses.
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Affiliation(s)
- Holly J Stover
- Department of Biology, Western University, London, Ontario, Canada
| | - Hugh A L Henry
- Department of Biology, Western University, London, Ontario, Canada
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