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生态学杂志 ›› 2005, Vol. ›› Issue (5): 483-487.

• 研究报告 • 上一篇    下一篇

高寒草甸不同草地群落物种多样性与生产力关系研究

王长庭1, 龙瑞军1,2, 王启基1, 景增春1, 丁路明1   

  1. 1. 中国科学院西北高原生物研究所, 西宁, 810008;
    2. 甘肃农业大学草业学院, 兰州, 730070
  • 收稿日期:2003-12-23 修回日期:2004-03-21 出版日期:2005-05-10
  • 通讯作者: 龙瑞军
  • 基金资助:
    国家自然科学基金项目(30371021);中国科学院“百人计划”资助项目

Relationship between species diversity and productivity in four types of alpine meadow plant communities

WANG Changting1, LONG Ruijun1,2, WANG Qiji1, JING Zengchun1, DING Luming 1   

  1. 1. Northwest Plateau Institute of Biology, Chinese Academy of Sciences, Xining 810008, China;
    2. Grassland Science College, Gansu Agricultural University, Lanzhou 730070, China
  • Received:2003-12-23 Revised:2004-03-21 Online:2005-05-10

摘要: 生态系统的结构和功能、生物多样性与生产力的关系问题是近年来群落生态学中研究的中心问题,其中,生态系统生产力水平是其功能的重要表现形式,用4种不同草地类型探讨自然群落的物种多样性与生产力关系。结果表明,矮嵩草草甸、小嵩草草甸和金露梅灌丛群落中物种多样性与生产力的关系呈线性增加关系,藏嵩草沼泽化草甸群落中线性增加关系不显著,这表明群落生产力除受物种多样性的影响外,也受物种本身特征和环境资源的影响。不同的环境资源和环境异质性是形成群落结构特征、物种多样性分布格局差异的主要原因之一。

关键词: 黑土, 棕壤, 甲胺磷, 根际圈, 降解脱毒

Abstract: The relationship between species diversity and ecosystem function is one of the core problems on biodiversity research.Productivity is an important modality of ecosystem function.The species diversity of natural communities is often strongly related to their productivity.The grassland is an important component of the terrestrial ecosystems and plays a significant role in the biodiversity and ecosystem function's study.The relationship between species diversity and productivity of natural communities were studied on four alpine meadow types.The results showed that the species diversity-productivity pattern was linearly increase in Kobresia pygmaca meadow,K.humlis meadow,Potentilla froticosa shrub,while there was no significant linear relationship in K.tibetica of swamp meadow,which indicated that the species diversity of natural community could influence the productivity.At the same time,different environmental resource and environmental heterogeneity contributes to the productivity as well,which form discrepant structural characteristics of community and distribution of species diversity.

Key words: Phaiozem, Burozem, Methamisophos, Rhizosphere, Degradation-detoxification

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