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生态学杂志 ›› 2004, Vol. ›› Issue (4): 7-12.

• 研究报告 • 上一篇    下一篇

沙区生态系统恢复演变过程中固沙植物种间生态位关系变化的研究

徐彩琳, 李自珍   

  1. 兰州大学干旱农业生态国家重点实验室, 兰州, 730000
  • 收稿日期:2003-04-05 修回日期:2003-05-24 出版日期:2004-08-10
  • 基金资助:
    国家自然科学基金项目(39970135;30070139);中国科学院知识创新工程资助项目(CACX210085)

Changes in interspecific niche relationship of sand-fixing plants in the restoration process of desert ecosystem

XU Cailin, Li Zizhen   

  1. State Key Laboratory of Arid Agroecology, Lanzhou University, Lanzhou 730000, China
  • Received:2003-04-05 Revised:2003-05-24 Online:2004-08-10

摘要: 以演变时间为生态位维,通过分析物种的生态位体积和生态位重叠,研究了荒漠生态系统恢复演变过程中固沙植物种间生态位关系的变化,同时也探讨了物种更替的生态学机制。这一研究对于实现沙区固沙植物群落的持续发展具有重要的指导意义.

关键词: 紫色土, 砷, 形态, 有效性

Abstract: Taking succession time as niche dimension,this paper studied changes in interspecific niche relationship of sand fixing plants in the restoration process of desert ecosystem by analyzing niche volume and niche overlap of species.At the same time,ecological mechanisms of species replacement were investigated via the analysis of their capability in using resources and interacting with other species.This study is of important significance to the sustainable development of desert sand fixing plant community.

Key words: Purple Soil, Arsenic, Form, Availability

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