Zonal Soil Type Determines Soil Microbial Responses to Maize Cropping and Fertilization

Author:

Zhao Mengxin1,Sun Bo2,Wu Linwei1,Gao Qun1,Wang Feng23,Wen Chongqing45,Wang Mengmeng1,Liang Yuting2,Hale Lauren4ORCID,Zhou Jizhong146,Yang Yunfeng1ORCID

Affiliation:

1. State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing, China

2. State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, China

3. Ningbo Academy of Agricultural Sciences, Ningbo, China

4. Department of Microbiology and Plant Biology and Institute for Environmental Genomics, University of Oklahoma, Norman, Oklahoma, USA

5. Fisheries College, Guangdong Ocean University, Zhanjiang, China

6. Earth Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California, USA

Abstract

Microbial communities are essential drivers of soil functional processes such as nitrification and heterotrophic respiration. Although there is initial evidence revealing the importance of soil type in shaping microbial communities, there has been no in-depth, comprehensive survey to robustly establish it as a major determinant of microbial community composition, functional gene structure, or ecosystem functioning. We examined bacterial and fungal community structures using Illumina sequencing, microbial functional genes using GeoChip, microbial biomass using phospholipid fatty acid analysis, as well as functional processes of soil nitrification potential and CO 2 efflux. We demonstrated the critical role of soil type in determining microbial responses to land use changes at the continental level. Our findings underscore the inherent difficulty in generalizing ecosystem responses across landscapes and suggest that assessments of community feedback must take soil types into consideration.

Publisher

American Society for Microbiology

Subject

Computer Science Applications,Genetics,Molecular Biology,Modelling and Simulation,Ecology, Evolution, Behavior and Systematics,Biochemistry,Physiology,Microbiology

Reference65 articles.

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3. IUSS Working Group WRB . 2014. World Reference Base for Soil Resources 2014. International soil classification system for naming soils and creating legends for soil maps. Food and Agriculture Organization of the United Nations, Rome, Italy.

4. Soil-forming factors and Soil Taxonomy

5. Distribution patterns of World Reference Base soil groups relative to soil forming factors

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