模拟降水和氮沉降增加对草地生物量影响的研究进展

摘要

研究降水和氮沉降增加对草地生态系统生物量的作用机制及其适应特征,有助于深刻理解气候变化对草地生态系统生产力和各项服务功能的影响,对草地生态系统的可持续发展具有重要意义.本文综述了模拟降水和氮沉降增加对草地植物生物量的改变及其可能的机制分析,探讨了植物对环境的适应特征,并在此基础上提出了未来气候变化条件下草地生态系统所面临的挑战和当前研究中主要存在的问题.%The research on mechanism and adaptive characteristics of grassland ecosystem biomass with increased precipitation and nitrogen deposition is helpful to understand the impact of climate change on productivity and service function of grassland ecosystem,which has great significance to the sustainable development of grassland ecosystem.This paper reviewed the possible change mechanism of grassland biomass under increasing precipitation and nitrogen deposition,and discussed the changes of plant adaptation to environment.On this basis,the challenges and main problems in the current research of grassland ecosystem under climate change were proposed.