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生态学杂志 ›› 1997, Vol. ›› Issue (4): 39-46.

• 研究报告 • 上一篇    下一篇

生态系统的冗余与营养结构模型

党承林, 黄瑞复   

  1. 云南大学生态学与地植物学研究所, 昆明650091
  • 收稿日期:1997-01-02 出版日期:1997-08-10

Redundancy in Ecosystems and the Model for Trophic Structure

Dang Chenglin, Huang Ruifu   

  1. Institute of Ecology and Geobotany, Yunnan university, Kunming 650091
  • Received:1997-01-02 Online:1997-08-10

关键词: 四季竹, 生态化学计量, 养分重吸收, 密度

Abstract: There are at least species and individuals (genetic structure) redundancy of population within each trophic level of ecosystems. By use of redundancy theory,authors probed into trophic structure and its model.The model for trophic structure combining advantages of food web and those of trophic level could reveal inherent relation between trophic structure and stability of ecosystems. The trophic structure of ecosystems is a huge and complex system with series_parallel redundency. Within each trophic level,individuals of a population and most species are arranged in parallel, but different trophic levels are linked in series way. Redundant property of the trophic structure determines that the ecosystems are stable or resistant and at some times fragile to a degree.

Key words: Oligostachyum lubricum, ecological stoichiometry, nutrient resorption, stand density.