三江源自然保护区玛珂河林区寒温性针叶林优势灌木种间联结研究  

Interspecific Association of Dominant Shrub Species in Cold Temperate Coniferous Forest in Ma Kehe Region of San Jiangyuan National Nature Reserve

作　　者：何友均[1] 崔国发[1] 邹大林[1] 郑杰[2] 董建生[2] 李永波[2] 郝万成 李长明 

机构地区：[1]北京林业大学自然保护区学院 [2]青海省林业局,西宁810007 [3]青海省玛珂河林业局,班玛814300

出　　处：《林业科学》2006年第12期126-129,共4页Scientia Silvae Sinicae

基　　金："十五"国家攻关"三江源自然保护区物种濒危状况快速评估技术"(2004BA510B10-03)项目资助。

摘　　要：Ma Kehe forest region is one of the core areas in San Jiangyuan National Nature Reserve. A large number of shrub species distribute in the cold temperate coniferous forest, which have important influence on the succession and restoration of the cold temperate coniferous forest. A series of techniques including relative tests and calculation of the percentage of co-occurrence were used to analyze the interspecific association among 20 dominant shrub species in 40 plots in Ma Kehe forest region of San Jiangyuan National Nature Reserve. The results showed that most of interspecific association of dominant shrub species was significantly negative. Only 69 species pairs were of positive correlation among 190 dominant shrub species pairs, 113 species pairs were of negative correlation, 8 species pairs were of absolute independent correlation. So, only a few dominant shrub species had positive interspecific association, most of them had little opportunity to use the same resources and occupy similar niche in the same community due to their competitions in Ma Kehe forest region.Ma Kehe forest region is one of the core areas in San Jiangyuan National Nature Reserve. A large number of shrub species distribute in the cold temperate coniferous forest, which have important influence on the succession and restoration of the cold temperate coniferous forest. A series of techniques including relative tests and calculation of the percentage of co-occurrence were used to analyze the interspecific association among 20 dominant shrub species in 40 plots in Ma Kehe forest region of San Jiangyuan National Nature Reserve. The results showed that most of interspecific association of dominant shrub species was significantly negative. Only 69 species pairs were of positive correlation among 190 dominant shrub species pairs, 113 species pairs were of negative correlation, 8 species pairs were of absolute independent correlation. So, only a few dominant shrub species had positive interspecific association, most of them had little opportunity to use the same resources and occupy similar niche in the same community due to their competitions in Ma Kehe forest region.

关 键 词：三江源自然保护区 玛珂河林区 寒温性针叶林 优势灌木 种间联结 

分 类 号：S759.992.7[农业科学—森林经理学]