Productivity is an important modality of ecosystem functioning. The species diversity of natural communities is often strongly related to their productivity. In the present paper, the relationship between productivity and species characteristics （important value）, as well as the species evenness of different types of alpine meadows, was analyzed. The results indicate that there existed a notable linear response species characteristics of communities and productivity, and a negative linear relationship between the species evenness and productivity of communities, though the difference was not significant in statistic. Discrepancy in species evenness under different ecological conditions results from interspecific competition for resources, and from the species unequal distribution in species composition of different grassland type communities.
Acta Agrestia Sinica