Community structure organization and its relation with environmental factors of sown grassland in South China

Abstract

Abstract: Contribution of environmental factors,spatial factors,biological and random factors to community structure within a man made grassland in southern terra was partitioned using canonical correspondence analysis.Under mowing and grazing,environmental factors explained (27.4% and 25.9%) variation of community structure.Contribution of spatial factors was 32.5%,24.2%,respectively.Contribution of biological and random factors was 48% and 56%,respectively.Gradient in community structure and species abundance is evident along environmental gradient in mowing grassland.The environment community/species relations were more complex in grazed grassland.Patches under different grazing intensity develop toward different directions.

Key words: Community structure, Environmental factors, Spatial factors, Mowing, Grazing

CLC Number:

S812.8

XIN Xiaoping, Wang Zongli, YANG Guixia, LI Xianglin . Community structure organization and its relation with environmental factors of sown grassland in South China[J]. Chinese Journal of Applied Ecology, 2004, (6): 963-968.

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