影响森林细根分解的机理研究进展

细根是森林地下生态系统的重要组成部分,其生产、周转和分解构成土壤与生物间的物质循环,是陆地生态系统C和养分循环的重要环节。细根分解的影响因素总体来讲包括植物本身和环境因素,每个影响因子各自独立成体系,又彼此紧密联系。以往的研究基本上都是各因素相互独立的研究。本文根据国内外近几十年来树木细根分解的研究现状,对细根分解所受的影响因子进行了综述,旨在进行纵向比较,得出细根分解目前的研究进展和动态,探讨影响细根分解因素的作用机理;总结当前存在的问题,并对细根分解研究方向进行了展望,为我国细根分解研究的深入开展提供良好借鉴。

Advances in Studying Fine Root Decomposition in Forest

Fine root is the important constituent of forest underground ecological system. Its production, turnover and de- composition compose the material recycling between the soil and biological, and is one of the major pathways of carbon and nu- trient cycling in terrestrial ecosystems. The influence factors of fine roots decomposition general public include plant--itself and environmental factors, each impact factor into system independent, and in close contact with each other. Previous studies are largely independent of each other on various factors. According to recent decades research status of fine roots decomposition, this paper reviewed the factors affecting fine root decomposition, it is concluded that the longitudinal compared to fine roots decomposition the recent research progress of and dynamic, to study the effect of fine roots decomposition factors mechanism; Summarizing the current existing problems, and brought forward the future directions, aimed to promote the study of fine root decomposition in forest ecosystem.