林窗干扰对森林更新及其微环境影响的研究  

A Review for Effects of Forest Gap on Forest Regeneration and Its Microenvironment

作　　者：张小鹏[1,2] 王得祥[1,2] 常明捷 康海斌[1] 郑玉莹[1] 

机构地区：[1]西北农林科技大学林学院,国家林业局黄土高原林木培育重点实验室,陕西杨凌712100 [2]甘肃小陇山森林生态系统国家定位观测研究站,甘肃天水741022

出　　处：《西南林业大学学报（自然科学）》2016年第6期170-177,共8页Journal of Southwest Forestry University：Natural Sciences

基　　金：国家自然科学基金(31470644)项目资助

摘　　要：林窗干扰是一种普遍发生的小尺度森林干扰形式,对维持森林的更新和循环演替具有重要意义。综合近年来国内外的相关科研成果,在系统阐述林窗形成原因和外部特征的基础上,总结林窗干扰条件下光照强度、空气温湿度及土壤理化性质等森林微环境的差异,指出林窗大小、形状和边界木特征是造成环境异质性的最直接因素。并从干扰和更新理论角度出发,分析林窗特征与种子扩散、植物多样性以及幼苗生长发育等方面的关系,展望该领域今后的研究方向以及林窗理论对于森林经营的指导意义。Forest gap was a small-scale forest disturbance occurring commonly, which played a very important role in sustaining forest regeneration and cyclic succession. Based on previous related literatures, how the forest gap formed and the external characteristics of the forest gap were systematically elaborated, and the differences among microenvironment forests disturbed by forest gap, such as illumination intensity, the air temperature and humidity, physical and chemical properties of soil, and so on, were summarized. The size, shape and border tree characteris-tic of forest gap was the direct factors explaining environmental heterogeneity. The article, based on disturbance the-ory and regeneration theory, analyzed the impacts imposed by gap disturbance, seed dispersal, species diversity and plant regeneration and growth, etc. In the end of this paper, it put forward the near future development direc-tion and gave us a practical guide on forest tending with the theory of forest gap.

关 键 词：林窗 干扰 森林更新 微环境 

分 类 号：S718.5[农业科学—林学]