草地植物群落多样性研究进展  

Research Advances of Diversity in Grassland Communities

作　　者：李凯辉[1] 胡玉昆[1] 阿德力.麦地[1] 于建梅[1] 武强[2] 

机构地区：[1]中国科学院新疆生态与地理研究所 [2]新疆生产建设兵团草原工作管理总站,乌鲁木齐830063

出　　处：《干旱区研究》2005年第4期581-585,共5页Arid Zone Research

基　　金：中国科学院新疆生态与地理研究所前沿领域项目(20049016)资助

摘　　要：生物多样性是目前国际生态学研究的三大热点之一。通过放牧干扰、环境因子、生态系统稳定性、生态系统生产力等方面,概述当今草地植物群落多样性研究的热点问题。对多样性指数之间的关系、多样性与生产力之间的关系、多样性测度方法和分析方法进行讨论。Biodiversity is one of the important content in researching global climate change, and is currently a hotspot in ecology study in the world. Biodiversity is a complex composed of biology and environment as well as the related various ecological processes. Affected by spatial scale and the complexity of ecosystems, the theoretical and practical studies include mainly 4 domains, i.e., the genetic diversity, species diversity, ecosystem diversity and landscape diversity. As the community diversity is a domain researched earliest in biodiversity study, its concept and measuring methods are mature, and the research content includes the composition, structure, functions and dynamic change of communities. Currently, the steppe ecosystems are paid more attention to in the studies on biodiversity and ecosystem functions. In this paper, the hotspots in researching the diversity of steppe plant communities are discussed from the aspects of pastoral disturbance, environmental factors, stability of ecosystems, productivity of ecosystems, etc. The relationships between the pastoral factors and the diversity of steppe plant communities, environmental factors and the diversity of steppe plant communities, ecosystem functions and the diversity of steppe plant communities, and ecosystem stability and the diversity of steppe plant communities are also discussed. The application of measuring methods in researching the diversity of steppe plant communities is reviewed, and some existing problems in researching the diversity of steppe plant communities are analyzed.

关 键 词：生态系统 生产力 草原 多样性指数 

分 类 号：Q948.15[生物学—植物学]