Interspecific association analysis in Stipa purpurea community in Batan area in Qinghai

Interspecific association can reflect interspecific competitive interactions in communities and plays an important role in community structure and functioning research.Interspecific association among 14 frequently present species in Stipa purpurea community were studied by 1 m×1 m sampling.The results showed that the multi-interspecific associations were negative. The community was in primary stage of succession,or was disturbed severely by outside.They could neither form a stable or unisonous connection,nor make full use of environment resource among species in communities.Species pairs were randomly arranged.