Assembly process and source tracking of microbial communities in sediments of Dongting Lake

作     者：Wenfei Liao Di Tong Xiaodong Nie Yaojun Liu Fengwei Ran Shanshan Liao Jia Chen Aoqi Zeng Zhongwu Li Wenfei Liao;Di Tong;Xiaodong Nie;Yaojun Liu;Fengwei Ran;Shanshan Liao;Jia Chen;Aoqi Zeng;Zhongwu Li

作者机构：School of Geographical SciencesHunan Normal UniversityChangsha 410081China Institute of Soil and Water Resources and Environmental ScienceCollege of Environmental and Resource SciencesZhejiang UniversityHangzhou 310058China College of Environmental Science and EngineeringHunan University and Key Laboratory of Environmental Biology and Pollution Control(Hunan University)Ministry of EducationChangsha 410082China 

出 版 物：《Soil Ecology Letters》 (土壤生态学快报（英文）)

年 卷 期：2023年第5卷第4期

页      面：101-110页

核心收录：

学科分类：07[理学] 0713[理学-生态学] 

基　　金：The National Natural Science Foundation of China provided funding for this project(U19A2047) 

主　　题：assembly processes soil erosion land types microbial source tracking FEAST 

摘      要：●Soil erosion resulted in homogenization of bacterial communities in the watershed.●Microbial community heterogeneity among erosion sites made soil tracing possible.●Assembly process results showed that the tracking results can achieve high precision.●Dryland was the main source of sediment deposition based on the result of *** source tracing can accurately provide a theoretical basis for controlling soil erosion effectively,by identifying the most serious types of land *** sediment tracing methods are based on physical,chemical,biological,and composite fingerprinting,which have not included *** high-throughput sequencing becomes more prevalent,microorganisms can provide more information than what we ***,whether the microorganism can also be used as a special fingerprint factor for sediment source identification during soil erosion,we have tested it by using microbial source tracking tool FEAST to quantify the microbe contribution from five types of eroded land(including dryland,urban,paddy field,forest and grassland)to the depositional areas(Niubitan)in the Yuanjiang *** source microbial community in the erosive area was heterogeneous,and assembly process analysis further demonstrated that the source tracking results could reach higher *** results of FEAST showed that dryland(35.50%),urban(17.21%),paddy field(8.14%),and forest(1.07%)were the major contributors to *** results follow the general soil erosion rules and prove its *** together,a new perspective is provided by these results for tracing sediment sources in erosion-sedimentary systems.