草原生态系统稳定性对升温和氮沉降的响应研究进展

A Review on the Response of Grassland Ecosystem Stability to Warming and Nitrogen Deposition

自工业化革命以来,全球变暖和大气氮沉降逐渐加剧。草原生态系统作为陆地生态系统的重要组成部分,对温度升高和氮沉降增加十分敏感,但目前对草原生态系统稳定性如何响应增温和氮素添加仍缺少整体性的认识。本文从植物群落以及土壤微生物群落等方面总结了国内外学者的研究,并概述了增温和氮素添加对草原生态系统稳定性影响的研究热点,以期为开展温度升高和氮素添加对草原生态系统影响的研究提供方向支撑。

Since the industrial revolution,the global warming and atmospheric nitrogen deposition have gradually intensified.As an important part of terrestrial ecosystems,grassland ecosystems are very sensitive to warming and nitrogen deposition.Although ecologists have carried out amount number of research on the impact of simulated warming and nitrogen addition on grassland ecosystems,there is still a lack of holistic understanding of how grassland ecosystem stability responds to warming and nitrogen deposition.This paper summarized the research progress of domestic and foreign scholars from the aspects of plant community and soil microbial community,and summarized the current research hotspots of the effects of warming and nitrogen addition on the grassland ecosystem stability.This paper provided direction supports for the research on the impact of warming and nitrogen addition on grassland ecosystems.