冰冻雨雪灾害中城市森林抗雪压特性及评价  

Performance Features and Evaluation of Compressive Strength of Urban Forest in the Ice-Snow Disaster

作　　者：吴际友[1] 王旭军[1] 廖德志[1] 程勇[1] 侯伯鑫[1] 何才生 

机构地区：[1]湖南省林业科学院,长沙410004 [2]湖南省郴州市林业科学研究所,郴州423000

出　　处：《林业科学》2008年第11期59-63,共5页Scientia Silvae Sinicae

基　　金：国家“十一五”科技支撑专题“中部地区城市森林建设技术试验示范”(2006BAD03A1704)

摘　　要：2008年3月,对湖南郴州城市森林树种及其配置模式和不同密度林分受雪压灾害情况进行调查,结果表明:就城市森林树种而言,不同生长表现的同一树种抗压性不同,生长旺盛的单株抗压性强;落叶树种比常绿树种抗压性强,乡土树种比外来树种抗性强。就城市森林树种配置模式而言,群植模式比孤植模式抗性强,混交林模式比纯林模式抗性强。就城市森林不同密度林分而言,低密度林分(郁闭度小)比高密度林分(郁闭度大)抗性强。The performance features of different tree species and theirs arrangement pattern and different stand density of urban forest in Chenzhou City were investigated in the ice-snow disaster in March,2008.The results showed as following：1）Different growth performance of the same tree species showed different compressive strength,the stronger the trees grew,the more compressive the trees showed.As for different tree species,the deciduous tree species showed stronger compressive than the ever-green ones,and the native tree species stronger than exotic ones.2）Different arrangement patterns also showed different compressive strength.Cluster planting had stronger compressive than single one,and mixed stands stronger than pure ones.3）The stands with rather lower density showed rather stronger compressive than the higher one.These results would be of high significance for directing urban forest construction.

关 键 词：城市森林 树种 配置模式 栽植密度 抗雪压 特性 评价 

分 类 号：S761[农业科学—森林保护学]