天童国家森林公园树种多样性的加性分配  

Additive partitioning of tree species diversity in Tiantong National Forest Park.

作　　者：陈小勇[1] 陆慧萍[1] 应向阳[1] 宋永昌[1] 

机构地区：[1]华东师范大学

出　　处：《应用生态学报》2006年第4期567-571,共5页Chinese Journal of Applied Ecology

基　　金：国家自然科学基金项目(30070143;30130060);"211"重点学科建设资助项目.

摘　　要：根据物种丰富度、Shannon指数和Simpson指数建立的物种多样性分配方法,提出分异度系数,对天童森林公园内不同森林类型的树种多样性进行了分析.结果表明,基于物种丰富度指数,总体的多样性只有小部分归功于样方内多样性,而多样性大多分配在样方间、亚群丛间或群丛间,例如在木荷-栲树群丛中,样方内只贡献了20.3%的物种丰富度.而在Shannon指数和Simpson指数中,多样性大多分配在样方内.这种差异主要是由于后两种指数不仅考虑了物种的存在与否,也考虑了其在样方内的多度.同时比较分析了加性分配与传统方法的结果.In recent decade, the additive partitioning of species diversity has been revived, and used to describe a variety of diversity patterns. This paper analyzed the additive partitioning of tree species diversity in Tiantong National Forest Park, based on species richness, Shannon index and Simpson index. For species richness, small part was partitioned within plots, and most diversity was partitioned among plots or （sub-） associations. For example, in Schimeto-Castanopsietu.z fargesii association, only 20.3 % of the species richness was assigned within plots. However, for Shannon index and Simpson index, most diversity was partitioned within plots, because these indices gave consideration to both species number and its abundance in each plot. The results of additive partitioning were also compared to those of traditional method in this paper.

关 键 词：加性分配 天童森林公园 树种多样性 Α多样性 Β多样性 γ多样性 

分 类 号：S718.5[农业科学—林学]