Informations et ressources scientifiques
sur le développement des zones arides et semi-arides

Accueil du site → Master → Chine → 2021 → Effects of Increased Nitrogen Deposition and Changing Rainfall Patterns on Soil Microbial Communities in Stipa Breviflora Desert Steppe

Inner Mongolia Agricultural University (内蒙古农业大学) 2021

Effects of Increased Nitrogen Deposition and Changing Rainfall Patterns on Soil Microbial Communities in Stipa Breviflora Desert Steppe

徐学宝

Titre : Effects of Increased Nitrogen Deposition and Changing Rainfall Patterns on Soil Microbial Communities in Stipa Breviflora Desert Steppe

Auteur : 徐学宝

Grade : Master 2021

Université : Inner Mongolia Agricultural University (内蒙古农业大学)

Résumé partiel
Increased atmospheric nitrogen deposition and precipitation change are important phenomenon in global climate change,and their impact on grassland ecosystems has become a hot issue in the field of ecology,The desert grassland is restricted by both water and nitrogen,and it has the leading indicator of global change.Studying the effects of nitrogen deposition and precipitation change on soil microbial communities in desert grassland ecosystems can provide a theoretical basis for comprehensive analysis and assessment of the impact of global changes on grassland ecosystems,the rational use of grasslands,biodiversity conservation,and the restoration of degraded grasslands.The water and nitrogen manipulation experiment in Stipa breviflora desert steppe is based on the field control experiment platform using split-plot design,with water as the whole-plot factor and nitrogen as the sub-plot factor,including twelve treatments.Water treatment includes CK(natural rainfall),W(30%rainfall addition),R(30%rainfall reduction),and nitrogen treatment includes 0(N0),30(N30),50(N50),100(N100)kg N·hm-2·a-1.We used high-throughput sequencing technology to study the effects of nitrogen deposition and precipitation change on soil bacterial and fungal community structure and its diversity in the Stipa breviflora desert steppe in Inner Mongolia

Mots clés : Soil microbial communities ;Nitrogen deposition ;Precipitation change ;Stipa breviflora desert steppe ;

Présentation (CNKI)

Page publiée le 4 mars 2022