森林植被及土壤碳储量对降水减少响应的控制模拟实验研究进展  

Review on the Response of Vegetation and Soil Carbon Storage to Decreased Precipitation Under Simulation Experiments in Forests

作　　者：刘彦春[1,2] 牛保亮[2] 李青林 管勇 Liu Yanchun;Niu Baoliang;Li Qinglin;Guan Yong(School of Life Science,Henan University,Kaifeng 475004,China;Key Laboratory of Forest Ecology and Environment of National Forestry and Grassland Administration,Ecology and Nature Conservation Institute,Chinese Academy of Forestry,Beijing 100091,China;Nanwan Forest Farm,Xinyang 464031,China)

机构地区：[1]河南大学生命科学学院,开封475004 [2]中国林业科学研究院森林生态环境与自然保护研究所,国家林业和草原局森林生态环境重点实验室,北京100091 [3]河南省信阳市南湾实验林场,信阳464031

出　　处：《陆地生态系统与保护学报》2023年第5期82-87,共6页Terrestrial Ecosystem and Conservation

基　　金：河南省青年骨干教师培养计划(2020);河南省科技厅科技攻关项目(222102320437);国家自然科学基金(31971454)。

摘　　要：作为陆地生态系统碳汇的主要贡献者,森林在减缓全球气候变化和维持区域生态安全等方面发挥着重要作用。在全球降水格局改变的背景下,干旱事件的发生频度及强度趋于增加,并对森林生态系统的植被及土壤碳储量产生重大影响。本文分别从植被碳和土壤碳储量2个方面,总结分析了林木个体生长、森林植被碳汇、地下根系生物量、土壤温室气体排放、不同组分土壤有机碳及微生物生物量碳对降水减少的响应规律,并探讨了不同变量对降水减少响应差异的潜在影响因子。针对目前的研究进展,简要总结了森林生态系统碳循环中最新的关注热点和亟待加强的研究方向,为深入理解森林生态系统碳循环过程中的关键环节对干旱的响应规律提供参考。As a main contributor of carbon sinks in terrestrial ecosystems,forest plays an important role in mitigating global climate change and maintaining regional ecological security.The frequency and intensity of drought events tend to increase due to the changing global patterns of precipitation,which then profoundly affect vegetation and soil carbon storage of forest ecosystem.This study summarized the impact of precipitation reduction on vegetation and soil carbon storage of forest ecosystem in detail from individual tree growth,forest community carbon sink,underground root biomass,soil greenhouse gases emissions,different components of soil organic carbon,and microbial biomass carbon,and analyzed the potential factors affecting the response of different variables to precipitation reduction.Based on the current research progress,we briefly summarizes the potential hot topics and directions required reinforcement to provide a reference for comprehensively understanding the response of key links in the process of forest ecosystem carbon cycle to drought.

关 键 词：干旱 减雨 碳循环 土壤呼吸 森林 

分 类 号：S714.2[农业科学—林学]