草业科学2026，Vol.43Issue(3)：638-655,18.DOI:10.11829/j.issn.1001-0629.2024-0696
土壤微生物在草地退化过程中的变化和在恢复中的应用
Application of soil microbes in the changes and restoration of grassland degradation
摘要
Abstract
Grasslands are among the largest terrestrial ecosystems in China,and their ecological functions and economic value cannot be ignored.However,owing to climate change and unreasonable human activities,a large area of grassland ecosystem in China has been degraded,severely affecting its productivity and ecological functions.This paper explored the current state of grassland degradation in China,its impact on soil microorganisms,and the crucial role of microorganisms in the restoration of degraded grasslands.Grassland degradation increased soil pH and significantly reduced soil density,moisture content,organic matter content,other physicochemical properties,and soil microbial diversity.It also changed the community structure of soil microorganisms and negatively affected the carbon and nitrogen cycling functions of microorganisms.In addition,degradation increased the abundance of plant pathogenic microorganisms in the soil,increasing the risk of plant diseases,which was not conducive to the restoration of degraded grassland,forming a vicious circle.Microorganisms play an important role in grassland restoration by promoting nutrient cycling,maintaining soil structure,participating in hydrological processes,and directly promoting plant growth.This study summarizes the main functional microbial groups involved in the restoration of degraded grasslands,such as arbuscular mycorrhizal fungi,azotobacter,and rhizosphere growth-promoting bacteria.It emphasizes the importance of strengthening microbial research on grassland ecosystem restoration technology to provide a scientific basis and technical support for the restoration and ecosystem management of degraded grasslands.关键词
草地退化/土壤微生物/退化草地恢复/丛枝菌根真菌Key words
grassland degradation/soil microorganisms/restoration/arbuscular mycorrhizal fungi引用本文复制引用
王若碧,纪宝明,张静,刘雅莉,李耀明..土壤微生物在草地退化过程中的变化和在恢复中的应用[J].草业科学,2026,43(3):638-655,18.基金项目
第三次新疆综合科学考察项目(SQ2022xjkk02700) （SQ2022xjkk02700）
国家自然基金项目(41871067) （41871067）
中央高校基本科研业务费专项(BLRC 2023B02) （BLRC 2023B02）
