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Xinjiang University (2021)

Response of Soil Microbial to Nitrogen Addition in Moss Biological Crusts of the Southern Gurbantunggut Desert

黄廷温

Titre : Response of Soil Microbial to Nitrogen Addition in Moss Biological Crusts of the Southern Gurbantunggut Desert

Auteur : 黄廷温

Grade : Master 2021

Université : Xinjiang University

Résumé partiel
The increase in atmospheric nitrogen(N)deposition can alter the structure and diversity of soil microbial communities,which in turn affects the processes and functions of the ecosystem.In desert ecosystems,studying the effect of N deposition on soil microbial communities of moss crust,can supplement the research results of the effects of N deposition on desert biological crusts,and promote the optimal management and reasonable protection of desert ecosystems.The study area is located in the southern Gurbantunggut Desert,the test set 4 N treatment levels:blank control(N0,0g N·m-2·a-1),low-N treatment(LN,1.8g N·m-2·a-1),medium-N treatment(MN,3.6g N·m-2·a-1),high-N treatment(HN,7.2g N·m-2·a-1),on the one hand,to analyze the effects of N deposition on moss crusts soil physicochemical properties and microbial biomass,on the other hand,using high-throughput sequencing technology,to analyze the effects of N deposition on moss crusts soil bacterial and fungi community structure and diversity

Mots clés : Nitrogen addition ;Moss crust ;Soil microbial biomass ;Soil microbial community ;Microbial diversity ;

Présentation (CNKI)

Page publiée le 24 mars 2022