广西植物Issue(6)：780-785,851,7.DOI:10.3969/j.issn.1000-3142.2013.06.011
冰雪灾害对江西九连山常绿阔叶林的影响
Effects of the ice and snow damage to the evergreen broad-leaved forest of Jiulianshan Mountain in Jiangxi Province
摘要
Abstract
The ice and snow damage to the evergreen broad-leaved forest of Jiulianshan Mountain National Natural Reserve in Jiangxi Province was studied,and effects of altitude,slope on the damage degree were analyzed.The results were as follows:the upper-layer and mid-layer trees were mostly in model of top breakage,the under-layer trees were subj ected to top and trunk breakage,the saplings and seedlings were mostly suffered from bending.In term of MDI , seedlings<saplings<under-layer trees<mid-layer trees<upper-layer trees;species with the highest MDI in differ-ent story was respectively Castanopsis carlesii in upper-layer,Neolitsea chuii in mid-layer,C.carlesii in under-layer and sapling,Eurya distichophylla in seedling;however,species with the lowest MDI in different stories were re-spectively Alniphyllum fortunei in upper-layer,Neolitsea aurata var.chekiangensis in mid-layer and under-layer, Eurya loquaiana in sapling and Tricalysia dubia in seedling.The trunk breakage ratio and MDI of upper-layer trees,top breakage ratio and MDI of mid-layer trees;trunk breakage ratio and MDI of under-layer trees,bending ra-tio of saplings,trunk breakage ratio of saplings,uprooting ratio of saplings,MDI of saplings,trunk breakage ratio and MDI of seedlings were significantly different between different latitude habitats(P<0.05);In the whole,different damage indexes of trees under 700-760 m altitude habitat were higher than individuals under 640-700 m altitude habitat.Under different slope habitats,damage indexes in different layers had no significant difference(P>0.05).关键词
九连山常绿阔叶林/冰雪灾害/受损程度/优势种/海拔/坡度Key words
Jiulianshan Mountain evergreen broad-leaved forest/ice and snow damage/damage degree/dominant species/altitude/slope分类
农业科技引用本文复制引用
何俊,赵秀海,孙兆军,范娟,毛双燕,周华..冰雪灾害对江西九连山常绿阔叶林的影响[J].广西植物,2013,(6):780-785,851,7.基金项目
国家“十一五”科技支撑项目(2008BADB0B05) （2008BADB0B05）
林业公益性行业科研专项(200904022) （200904022）
