中国森林生态系统细根分解格局及调控因子研究进展  

Fine Root Decomposition Pattern of Forest Ecosystem in China and Research Progress of Controlling Factors

作　　者：许玉庆[1] 项文化[1] 曾叶霖[1] 谢武[1] 

机构地区：[1]中南林业科技大学生命科学与技术学院,湖南长沙410004

出　　处：《广西林业科学》2015年第2期149-155,共7页Guangxi Forestry Science

基　　金：国家自然科学基金(31300524);博士后面上项目(2013M540646);高等学校博士学科点专项科研基金(20124321110006)

摘　　要：细根分解是森林生态系统地下生态过程的关键环节,在C和养分循环发挥着重要作用。细根分解过程及其调控因素的研究对揭示全球碳循环和森林生态系统功能具有重要意义。细根分解受底物质量、环境因素和土壤微生物等许多因素的影响,在区域尺度上表现出不同的变化格局。我们选取了国内近年来具代表性的细根分解文献,分析了中国不同森林生态系统细根分解的空间格局,对调控细根分解的主要因子进行了综述。同时,针对目前细根研究的现状,展望了细根分解的研究方向和研究难点。Fine root decomposition is the primary ecology process in belowground of forest ecosystem and plays an important role in ecosystem carbon （C） and nutrient cycling. Understanding of fine root decomposition process and its controlling factors could help to explore the global C cycle and forest ecosystem function. Due to complicate effects of various factors such as substrate quality, environmental factors and soil microorganism on fine root decomposition, the spatial patterns differed considerably on the regional scale. Some primary literatures about fine root decomposition were chosen in China recently to synthesize the spatial patterns of fine root decomposition as well as the factors affecting decomposition processes. In addition, the research direction and difficulties were proposed based on research status.

关 键 词：森林生态系统 细根分解 养分循环 土壤微生物 底物质量 

分 类 号：S718.5[农业科学—林学]