| 甘肃省小陇山濒危珍稀植物白皮松群落种间关联 |
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| 引用本文： | 谢湉,巨天珍,师贺雄,樊振华,杨国科,张宋智.甘肃省小陇山濒危珍稀植物白皮松群落种间关联[J].生态学杂志,2010,29(3):448. |
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| 作者姓名： | 谢湉 巨天珍 师贺雄 樊振华 杨国科 张宋智 |
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| 作者单位： | 1. 西北师范大学,兰州,730070
2. 天水小陇山林科所,甘肃,天水,741020 |
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| 基金项目： | 甘肃省自然科学基金项目(0710RJZA111); 2008年西北师范大学本科生科研资助项目 |
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| 摘 要： | 通过野外调查,选取小陇山白皮松群落50个样方的20个常见物种,运用多物种方差比值(VR),χ2检验,OI、DI、JI指数,AC、PC值以及Pearson相关系数和Spearman秩相关系数对其进行了种间关联分析。VR分析表明,白皮松林主要组成成分间的关系以正关联为主,说明白皮松群落的性质与其生存环境特征是一致的,白皮松林适应群落外环境;20个常见种种对关系表现出了不同的性质,是群落内环境的表现,也是由群落内环境异质性所致;综合植物的生态特征,划分出3个生态种组,发现白皮松群落的高负关联性是由林下喜阴灌木引起的,而群落较高的独立性则是由林缘植物引起的。种间关联的研究可以反映出由物种生态特征所形成的有机联系,研究结果对白皮松群落的保护与恢复有一定的指导意义。
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| 关 键 词： | 白皮松群落 种间关联 甘肃省小陇山 |
Interspecific association of rare and endangered Pinus bungeana community in Xiaolongshan of Gansu |
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| XIE Tian,JU Tian-zhen,SHI He-xiong,FAN Zheng-hua,YANG Guo-ke,ZHANG Song-zhi.Interspecific association of rare and endangered Pinus bungeana community in Xiaolongshan of Gansu[J].Chinese Journal of Ecology,2010,29(3):448. |
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| Authors: | XIE Tian JU Tian-zhen SHI He-xiong FAN Zheng-hua YANG Guo-ke ZHANG Song-zhi |
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| Affiliation: | XIE Tian1,JU Tian-zhen1,SHI He-xiong1,FAN Zheng-hua1,YANG Guo-ke1,ZHANG Song-zhi2(1Northwest Normal University,Lanzhou 730070,China,2Tianshui Forestry Research Institute in Xiaolongshan,Tianshui 741020,Gansu,China) |
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| Abstract: | Through field investigation,20 common plant species were selected from 50 plots of Pinus bungeana community in Xiaolongshan to analyze their interspecific associations by using multi-species relevance(variance ratio,VR),X~2-test,Ochiai index,Dice index,Jaccard index,AC value,PC value,Pearson' s correlation coefficient,and Spearman' s rank correlation coefficient.The VR analysis showed that the associations between the main components of the community were mainly of positive,demonstrating that the nature of the community was consistent with the characteristics of its living environment,and the community was adapted to its outside environment.The species-pair associations among the 20 common species had different properties,which showed the inner environment of the community and was caused by the heterogeneity of the environment within the community.Considering the ecological characteristics of plants,the community was divided into three ecological species groups.It was found that the high proportion of negative association in the community was caused by the shade shrubs under the trees,and the high independence of the community was caused by the plants from the forest edge.The study of interspecific association could reflect the organic link formed by the ecological characteristics of plant species,and the results would have certain practical significance for the protection and restoration of P.bungeana community. |
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| Keywords: | Pinus bungeana community interspecific association Xiaolongshan |
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