Dynamics of species diversity in secondary succession series of forest communities in Jinyun Mt

Abstract

Abstract: Based on the investigations on the secondary succession series of forest communities in Jinyun Mt. in1986 and 1996, the composition index (CI) was used to process the ordination of community succession, and to study the dynamics of species diversity. The result shows that CIwould solve the problem resulted from the substitution of time with space. In the course of forest secondary succession, the species richness tended to increase at the early stage, and then to reduce; while the species evenness did not show any obvious dynamics, which was related to the intraspecific and interspecific relations. Therefore, moderate disturbance could increase species diversity in communities.

Key words: Composition index, Species diversity, grain size, saltation, oasis-desert ecotone, aeolian deposit

Guo Quanbang, Liu Yucheng and Li Xuguang. Dynamics of species diversity in secondary succession series of forest communities in Jinyun Mt[J]. Chinese Journal of Applied Ecology, 1999, 10(5): 521-524.

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