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Long-term regional evidence of the effects of livestock grazing on soil microbial community structure and functions in surface and deep soil layers

文献类型：期刊论文

作者Wu, Ying5; Chen, Dima4; Delgado-Baquerizo, Manuel; Liu, Shengen; Wang, Bing; Wu, Jianping5; Hu, Shuijin1; Bai, Yongfei4,6
刊名SOIL BIOLOGY & BIOCHEMISTRY
出版日期2022
卷号168
ISSN号0038-0717
关键词Depth profile Drylands Ecosystem functions Microbial community structure Microbial diversity Plant -soil (below-ground) interactions Soil mineralization Livestock grazing
DOI10.1016/j.soilbio.2022.108629
文献子类Article
英文摘要Grazing by livestock can affect plant biodiversity and topsoil functions. However, experimental evidence on whether these impacts are limited to the topsoil or penetrate into deep layers (via changes in soil environment and resource locations) of soil is lacking, especially for soil microbial biomass and diversity. Here, we used paired grazed and ungrazed (fenced) plots at 10 locations across the Mongolian Plateau to investigate how long-term (>10 years) livestock grazing affects the biomass, diversity, composition, and function of microbial communities in surface (0-20 cm) and deep soil layers (40-60 cm). Livestock grazing increased bacterial diversity by 5-9% in both soil layers but increased fungal diversity by 10% only in the topsoil. Livestock grazing also strongly altered bacterial and fungal community composition in both soil layers. Livestock grazing decreased soil C mineralization rates by 11-25% in both soil layers, and decreased soil N mineralization rates by 16% and bacterial biomass by 20% only in the topsoil. The grazing-induced increase in microbial diversity in both soil layers was mainly explained by the changes in plant C:N ratio and plant biomass rather than by soil abiotic variables, especially for the deep soil layer. The grazing-induced negative effects on ecosystem functions (soil C and N mineralization) were mainly associated with soil abiotic variables together with plant variables or microbial diversity in the surface soil layer and were mainly associated with plant variables and soil microbial diversity in the deep soil layer. Overall, our regional field experiment provides the first evidence that the strong effects of livestock grazing on soil microbial biomass, diversity, composition, and function can penetrate the deep soil in arid and semi-arid grasslands. This knowledge suggests that models should consider the dynamic interactions between land use and both soil microbial diversity and biomass across soil depths in global drylands.
学科主题Soil Science
电子版国际标准刊号1879-3428
出版地OXFORD
WOS关键词BACTERIAL COMMUNITIES ; ORGANIC-MATTER ; CARBON ; DIVERSITY ; EXCLUSION ; FUNGAL ; PLANT ; ECOSYSTEMS ; RESPONSES ; PATTERNS
WOS研究方向Science Citation Index Expanded (SCI-EXPANDED)
语种英语
出版者PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号WOS:000793635400001
资助机构National Natural Science Foundation of China [31570450, 31630010] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences [2015061] ; Ramon y Cajal grant from the Spanish Ministry of Science and Innovation [RYC2018-025483-I] ; BES grant agreement [LRB17\1019]
源URL[http://ir.ibcas.ac.cn/handle/2S10CLM1/29031]  
专题植被与环境变化国家重点实验室
作者单位1.Univ Pablo de Olavide, Unidad Asociada CSIC UPO BioFun, Seville 41013, Spain
2.Univ Chinese Acad Sci, Beijing, Peoples R China
3.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing, Peoples R China
4.Yunnan Univ, Key Lab Soil Ecol & Hlth Univ Yunnan Prov, Sch Ecol & Environm Sci, Kunming, Yunnan, Peoples R China
5.China Three Gorges Univ, Engn Res Ctr Ecoenvironm Three Gorges Reservoir R, Minist Educ, Yichang, Peoples R China
6.North Carolina State Univ, Dept Plant Pathol, Raleigh, NC USA
7.CSIC, Lab Biodiversidad & Funcionamiento Ecosistem, Inst Recursos Nat & Agrobiol Sevilla IRNAS, Av Reina Mercedes 10, E-41012 Seville, Spain
推荐引用方式
GB/T 7714		 Wu, Ying,Chen, Dima,Delgado-Baquerizo, Manuel,et al. Long-term regional evidence of the effects of livestock grazing on soil microbial community structure and functions in surface and deep soil layers[J]. SOIL BIOLOGY & BIOCHEMISTRY,2022,168.
APA Wu, Ying.,Chen, Dima.,Delgado-Baquerizo, Manuel.,Liu, Shengen.,Wang, Bing.,...&Bai, Yongfei.(2022).Long-term regional evidence of the effects of livestock grazing on soil microbial community structure and functions in surface and deep soil layers.SOIL BIOLOGY & BIOCHEMISTRY,168.
MLA Wu, Ying,et al."Long-term regional evidence of the effects of livestock grazing on soil microbial community structure and functions in surface and deep soil layers".SOIL BIOLOGY & BIOCHEMISTRY 168(2022).

入库方式： OAI收割

来源：植物研究所

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