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塔里木河下游绿洲荒漠过渡带群落多样性特征分析
Authors
李卫红
李建贵
湾疆辉
郑田
Publication date
1 January 2009
Publisher
Abstract
结合塔里木河下游铁干里克绿洲荒漠过渡带29个植被样地的调查资料,对植物的群落结构和数量特征做了分析。结果表明:研究区群落结构较为简单,植物群落物种多样性水平较低,物种组成单一,天然植物20种,隶属12科18属。从多样性指数的数量特征来看,Simpson多样性指数的变化范围为0.517~0.830,Shannon-Wiener指数变化范围0.851~1.974;Menhinick丰富度指数的变化范围为0.977~3.784,Margalef丰富度指数的变化范围为1.517~8.496;JSW均匀度指数的变化范围为0.719~0.908,JSI指数变化范围为0.729~0.949;植被盖度的变化范围在0.035~1.001之间
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Last time updated on 29/11/2016