退化喀斯特群落自然恢复程度评价  

A Study on the Recovery Degree Evaluation in the Natural Restoration Process of Degrade Karst Forest

作　　者：李援越[1] 祝小科[1] 朱守谦[1] 

机构地区：[1]贵州大学,贵州贵阳550025

出　　处：《南京林业大学学报（自然科学版）》2003年第4期31-34,共4页Journal of Nanjing Forestry University：Natural Sciences Edition

基　　金：国家"九五"科技攻关项目(96-007-02-03-03)

摘　　要：选择不同演替阶段群落的生物量、群落高度、与顶极群落的相似系数、显著度和盖度等为指标,用层次分析法对退化喀斯特群落自然恢复的程度进行评价。结果表明,随演替的进展,群落盖度的恢复最快,其次为群落种类组成,群落高度的恢复程度居中,群落显著度、生物量的恢复较缓慢。In order to evaluate the recovery degree of the natural restoration process of degraded Karst forest,the characters such as biomass,composition similarity with climax community,height,prominence and cover degree were chosen as the indexes.By the hierarchy analysis,the effect of above indexes to the natural restoration process of degrade Karst forest was studied.The result showed:the increase of community cover degree was the most fast(35%～79%),the increase of community average height(0.54～7.63 m) and spices compose were placed in the middle,the increase of community prominence and biomass(3.750 1～80.904 2 t/hm 2) were slow.It meant that the recovery of community functions got behind with the recovery of community appearance.The natural restoration process of degraded Karst forest was a lengthy progression.

关 键 词：退化喀斯特群落 自然恢复 恢复程度评价 生物量 群落高度 植物群落 

分 类 号：S718.54[农业科学—林学]