青海巴滩地区紫花针茅草原群落种间联结研究  

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

作　　者：刘洋[1] 彭敏[1] 卢学峰[1] 邹芳平[2] 刘德铭[1] 杨仕兵[1] 周玉碧[1] 

机构地区：[1]中国科学院西北高原生物研究所 [2]陕西师范大学生命科学学院,陕西西安710062

出　　处：《草业科学》2007年第2期1-5,共5页Pratacultural Science

基　　金：国家科技部基础研究快速反应支持项目;中国科学院西北高原生物研究所知识创新工程领域前沿项目(CXLY-2002-7)

摘　　要：种间联结能够反映群落中物种之间的交互作用,在群落结构功能研究中占有重要位置。在1 m×1 m样方尺度上研究了紫花针茅Stipa purpurea草原群落中出现频率较高的14个物种之间的交互联结性。结果表明紫花针茅草原群落总体种间关联性为负相关,种对间没有显著相关性。群落尚处在演替初期阶段,或群落受到外界严重干扰。群落中的物种间不可能形成一种稳定、协调的搭配关系和对环境资源的最佳利用状态,群落中植物种对间搭配关系表现出偶然性和随机性。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.

关 键 词：紫花针茅群落 正向联结 负向联结 中性联结 

分 类 号：S812[农业科学—草业科学]