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当前位置: 首页 > 文章 > 祁连山林区青海云杉群落种间相关和联结分析 西北林学院学报 2009,24 (2) 18-22+90
Position: Home > Articles > The Interspecies Relevance and Association of Picea crassifolia Community in Qilian Mountains Forestry Area Journal of Northwest Forestry University 2009,24 (2) 18-22+90

祁连山林区青海云杉群落种间相关和联结分析

作  者：
刘建泉
单  位：
西北农林科技大学林学院
关键词：
祁连山林区;青海云杉林;种间总体相关性;种间联结性;种间关联度
摘  要：
选择了祁连山北坡6个林区具有代表性的青海云杉(Picea crassi folia)群落,设置400 m2的样地16块,对群落的种间联结性和关联度进行了研究。结果表明,青海云杉群落中96个种群总体表现出显著的正关联,主要种群间具有互利共存的关系;灌木-青海云杉林、草类-青海云杉林内种群间总体表现出不显著的负关联,藓类-青海云杉林内种群间总体表现出不显著的正关联,而青海云杉混交林中种群间总体表现出显著的负关联。群落中物种种间联结性不强,负联结种对数大于正联结种对数,仅5个种对为显著正联结,大部分种对间为不显著的负联结,不存在极显著和显著的负联结。种群间关联性较弱,且与种对数成反比,关联性越强种对数越少,种群具有相对独立分布的特性。青海云杉种群具有较强的独立性,构成的群落也能够容纳较多的物种,并使群落保持稳定。
译  名：
The Interspecies Relevance and Association of Picea crassifolia Community in Qilian Mountains Forestry Area
作  者：
LIU Jian-quan1,2(1.College of Foresty,Northwest A&F University,Yangling,Shaanxi 712100,China;2.Administration of Qilianshan National Nature Reserve,Zhangye,Gansu 734000,China)
关键词：
Qilian Mountains forestry area;Picea crassifolia forest;interspecies overall correlation;interspecies association;inter-species interrelatedness
摘  要：
Based on the data collected from the 16 sampling plots which were 400 m2 pre plot selected from representative Picea crassifolia community in six forest areas of Qilian Mountains north slope,the interspecies relevance and association were studied.The results showed that: 96 populations in P.crassifolia community appeared significantly positive correlation overly,between the main populations there existed mutually beneficial coexistent relations;the overall surface appeared no significantly negative connection in shrubs P.crassifolia forest and herb P.crassifolia forest;no significantly positive connection in moss P.crassifolia forest;significanly negative connection in P.crassifolia mixed forest.The interspecies association between species was not strong,species pairs of the negative association were greater than the positive association,only 5 species pairs showed significant associations,the majority of species pairs showed were found no-significant negative associations,None most significantly positive or negative association were found.Associations between the populations were weak,and in reverse proportion with species pair.The stronger of the interspecies associations,the less of species pairs,indicating the P.crassifolia population had relatively independent distribution characteristics.The P.crassifolia population had the distinct independent features.Its constitution' community could accommodate many species,and made the community stable.

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