安徽长江滩地农林复合系统草本植物群落特征研究  

The Characteristics of Herb Community in Agroforestry of Beach Land along Changjiang River of Anhui

作　　者：吴泽民[1] 何云核[1] 孙启祥[1] 

机构地区：[1]安徽农业大学森林利用学院,合肥230036

出　　处：《安徽农业大学学报》2001年第1期27-31,共5页Journal of Anhui Agricultural University

基　　金：国家"九五"攻关项目

摘　　要：研究安徽长江外滩在实施农林复合经营后滩地草本植被的变化 ,主要涉及草本植物的多样性指数 ,群落特征分析及草本植物的生物量。结果表明 :1 m范围的高程差影响植物种类组成 ,其趋势表明滩地 1 m的高程差已构成水分环境的变化 ;生物多样性指数、群落均匀度随高程增加而增加 ,但个体数及生态优势度则下降 ;间种促使生境趋向中生。The paper dealed with the change of herb vegetation on beach land after the Agroforestry system was established.The major topics covered the biodiversity of herb species; analysis of community indices and biomass for herb vegetation on beach land. The results showed that 1 metre difference for elevation of beach land would influence its species composition since the water condition was changed. The species diversity and community evenness index enhanced with the increasing of elevation,but individuals and ecological dominance index decreased.

关 键 词：生物多样性 群落特征 草本植物 长江滩地 农林复 

分 类 号：Q948.156[生物学—植物学] S718.521.2[农业科学—林学]