首页 | 本学科首页   官方微博 | 高级检索  
   检索      

福建建溪流域常绿阔叶防护林物种多样性特征研究
引用本文:洪伟,林成来,吴承祯,何东进,陈昆.福建建溪流域常绿阔叶防护林物种多样性特征研究[J].生物多样性,1999,7(3):208-213.
作者姓名:洪伟  林成来  吴承祯  何东进  陈昆
作者单位:福建林学院,南平,353001
摘    要:从生物多样性保护原则出发,物种多样性应是评价防护林综合效益的重要指标之一。本文采用Weibul分布模型分析建溪流域防护林乔木层、灌木层的种-多度关系,用多种公式计算防护林各层次的物种多样性并与我国暖温带落叶阔叶林的物种多样性相比较,得出以下结论:1)该流域防护林乔木层的种-多度关系符合Weibul分布模型,说明个体数量较多的乔木仅限于少数几种主要的树种,群落的均匀度相对较小;2)该流域防护林主要群落内乔木层、灌木层和草本层的丰富度、均匀度和总多样性指数都较我国暖温带落叶阔叶林相对应的指数高。

关 键 词:防护林,物种多样性,Weibull分布
收稿时间:1998-5-20
修稿时间:1998-10-11

Research on species diversity of evergreen broad-leaved shelter-forests in Jianxi River Valley, Fujian
HONG Wei,LIN Cheng-Lai,WU Cheng-Zhen,HE Dong-Jin,CHEN Kun.Research on species diversity of evergreen broad-leaved shelter-forests in Jianxi River Valley, Fujian[J].Biodiversity Science,1999,7(3):208-213.
Authors:HONG Wei  LIN Cheng-Lai  WU Cheng-Zhen  HE Dong-Jin  CHEN Kun
Abstract:According to the principle of biodiversity conservation, the species diversity should be regarded as an important target of synthetical benefit of the shelter forests. The authors analyzed the species abundance of tree layer and shrub layer of the shelter forest using the model of the Weibull distribution, and calculated the species diversity for each layer by means of various formulas and compared with that of the deciduous broad leaved forests in North China. The results were as follows:(1)in the valley the species abundance relationship fitted with the Weibull distribution model, suggesting that those trees with the greatest number of individuals were only restricted in a few species and evenness indices was small;(2)its richness indices, evenness indices and species diversity indices were higher than those of the deciduous broad leaved forests.
Keywords:shelter      forests  species diversity  Weibull distribution
本文献已被 CNKI 维普 万方数据 等数据库收录!
点击此处可从《生物多样性》浏览原始摘要信息
点击此处可从《生物多样性》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号