南方重大冰雪灾害对福建省建阳市毛竹林的影响及成因分析

以福建省建阳市毛竹林为研究对象,对2008年重大冰雪灾害中毛竹林受灾的成因、危害方式以及与林分结构特征、地形等的关系及未来的影响进行了调查分析。结果表明,海拔高、坡位低、林型简单、林分密度大的毛竹林受灾严重,受灾毛竹的径级分布呈近正态分布趋势。同时探讨了冰雪灾害对人工林生态系统内病虫害、火灾、林下植被、生境因子和种群变化可能产生的影响。

The influence and cause analysis of heavy snow and ice damage on Phyllostachy pubescens plantation in southern China

In early spring of 2008,the forest ecosystem suffered from heavy damage caused by snow and ice in southern China.In order to understand well its influence on Phyllostachy pubescens plantation,comprehensive investigations were conducted soon after the snow and ice damage in Jiangyan county,Fujian province.The results showed that the serious damage on P.pubescens plantation happened with high altitude,low slope position,simple stand type as well as high densiy.The size class distribution of damaged P.pubescens attributed to normal distribution.At the same time,the likely influences of snow and ice damage on the pests and diseases,fire happening,the vegetation changing under plantation,and the habitat factors and populations fluctuation were also discussed.