Stochastic community assembly of abundant taxa maintains the relationship of soil biodiversity-multifunctionality under mercury stress
作者机构：Key Laboratory of Urban Environment and HealthNingbo Urban Environment Observation and Research StationInstitute of Urban EnvironmentChinese Academy of SciencesXiamen361021China College of Resources and EnvironmentHuazhong Agricultural UniversityWuhan430070China School of Agriculture and FoodFaculty of Veterinary and Agricultural SciencesThe University of MelbourneParkvilleVIC3010Australia Hubei Key Laboratory of Soil Environment and Pollution RemediationHuazhong Agricultural UniversityWuhan430070China
出 版 物：《Soil Ecology Letters》 (土壤生态学快报（英文）)
年 卷 期：2024年第6卷第2期
页 面：163-177页
核心收录：
学科分类：09[农学] 0903[农学-农业资源与环境] 090301[农学-土壤学]
基 金：financially supported by the National Natural Science Foundation of China(42177022 and 41877120) Natural Science Foundation of Hubei Province,China(2020CFA013)
主 题：abundant taxa biodiversity-multifunctionality relationship community assembly network complexity environmental stresses
摘 要：Soil abundant taxa diversity positively related to multifunctionality under Hg stress.•Microbial network complexity of soil abundant taxa supported the strength of SBF.•Stochastic assembly of soil abundant subcommunity supported the strength of SBF.•Stochastic ratio was the most important predictor for the strength of *** is known that soil microbial communities are intricately linked to multiple ecosystem functions and can maintain the relationship between soil biodiversity and multifunctionality(SBF)under environmental ***,the relative contributions and driving forces of abundant and rare taxa within the communities in maintaining soil biodiversity-multifunctionality relationship under pollution stresses are still ***,we conducted microcosm experiments to estimate the importance of soil abundant and rare taxa in predicting these relationships under heavy metal mercury(Hg)stress in paired paddy and upland *** results revealed that the diversity of abundant taxa,rather than rare taxa,was positively related to multifunctionality,with the abundant subcommunity tending to maintain a larger proportion of soil functions including chitin degradation,protein degradation,and phosphorus *** multitrophic network complexity consisting of abundant species showed positive correlations with biodiversity and multifunctionality,and supported the strength of SBF within a network complexity *** assembly processes of the abundant subcommunity were positively correlated with the strength of SBF,although stochastic processes decreased the biodiversity and the multifunctionality,*** simultaneously accounting for multiple factors on the strength of SBF,we found that the stochastic community assembly ratio of abundant taxa was the most important predictor for SBF strength under Hg *** results highlight the importance of abundant taxa in supporting soil multifunctionality,and elucidate the linkages between co
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