防护林科技
防護林科技
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PROTECTION FOREST SCIENCE AND TECHNOLOGY
2015年
6期
21-23
,共3页
物种多样性%森林群落%辽宁东部山区
物種多樣性%森林群落%遼寧東部山區
물충다양성%삼림군락%료녕동부산구
species diversity%forest communities%eastern mountains of Liaoning Province
物种多样性是描述森林群落结构及个体组成的一个重要指标。采用Margalef丰富度指数、Shannon -Wiener多样性指数、Simpson多样性指数、Pielou均匀度指数等几个主要参数对辽宁东部山区柞树林不同间伐强度下植物种类多样性规律进行了研究。结果表明,随着柞树林间伐强度的递增,群落的多样性呈递减的趋势。
物種多樣性是描述森林群落結構及箇體組成的一箇重要指標。採用Margalef豐富度指數、Shannon -Wiener多樣性指數、Simpson多樣性指數、Pielou均勻度指數等幾箇主要參數對遼寧東部山區柞樹林不同間伐彊度下植物種類多樣性規律進行瞭研究。結果錶明,隨著柞樹林間伐彊度的遞增,群落的多樣性呈遞減的趨勢。
물충다양성시묘술삼림군락결구급개체조성적일개중요지표。채용Margalef봉부도지수、Shannon -Wiener다양성지수、Simpson다양성지수、Pielou균균도지수등궤개주요삼수대료녕동부산구작수림불동간벌강도하식물충류다양성규률진행료연구。결과표명,수착작수림간벌강도적체증,군락적다양성정체감적추세。
The description of the species diversity is an important indicator of forest community structure and com‐position of the individual .Diversity law of plant of Xylosma racemosum in eastern mountains of Liaoning Province under different thinning intensities was studied by using different parameters (the Margalef richness index ,Shannon‐Wiener diversity index ,Simpson diversity index ,Pielou evenness index) .Result shows that diversity of communities shows a decreasing trend with the increase of thinning intensity for Xylosma racemosum .