山西庞泉沟针叶林群落植物多样性研究  

Study on Plant Diversity of Conifer Forest Communities in Pangquangou

作　　者：李毳[1] 

机构地区：[1]山西财经大学,山西太原030006

出　　处：《水土保持学报》2001年第5期95-98,107,共5页Journal of Soil and Water Conservation

基　　金：国家"九五"攻关项目! (96 -0 0 4-0 5 -0 3);国家教委留学基金资助项目

摘　　要：用数量分析的方法研究了关帝山庞泉沟主要森林群落华北落叶松林和云杉林及其交错区的植物多样性。结果表明 ,随海拔高度的变化 ,群落的植物多样性指数呈降低趋势 ;Pielou均匀度指数乔木层呈降低趋势 ,而灌木层和草本层的变化不太明显。群落交错区的植物多样性明显增加。不同的生长型其多样性的变化表现出不同的特征。群落的β多样性表现出比较复杂的变化趋势。随海拔高度的变化其基本可以分为 3个区段 。The plant diversity of Larix principis rupprechtii community and Picea ssp.community and their ecotone are studied using numerical method. The results show: the plant diversity index of communities decrease along with the increasing of elevation gradient; the evenness of tree stratum is lower in the high and low elevation than in the middle, but those of shrub stratum and herb are not obvious. The plant diversity of community's ecotone increase obviously. The change pattern of diversity show different features in various growth type. The β diversity of communities show relative complex feature. It can be divided three parts.There are various features in each part. It show the change characters of plant diversity of communities and their ecotone.

关 键 词：针叶林群落 植物多样性 庞泉沟 

分 类 号：S157[农业科学—土壤学]