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生态学杂志 ›› 2001, Vol. ›› Issue (1): 48-51.

• 专论与综述 • 上一篇    下一篇

农业生态系统模式的形成演替及其空间分布格局探讨

章家恩, 骆世明   

  1. 华南农业大学热带亚热带生态研究所, 广州510642
  • 收稿日期:1999-11-29 修回日期:2000-02-28 出版日期:2001-02-10
  • 基金资助:
    中美日联合资助项目“华南退化坡地恢复与绿色食品生产模式调查研究”的部分内容

Discussion on the Main Types of the Formation and Succession of Agricultural Ecosystems and Their Spatial Distribution

Zhang Jia'en, Luo Shiming   

  1. Institute of Tropical and Subtropical Ecology, South China Agricultural University, Guangzhou 510642
  • Received:1999-11-29 Revised:2000-02-28 Online:2001-02-10

关键词: 哲罗鱼, 补偿生长, 饥饿再投喂, 投喂频率, 变异系数

Abstract: The main mechanism and types of the formation and succession and spatial distribution pattern of agricultural ecosystem are discussed in this paper. It suggests that the formation and succession of agricultural ecosystem is co-influenced by the natural environmental conditions, natural resources, economic development level, market background, science and technology, policy systems,and social and cultural customs. But in different areas, the formation mechanism of the agroecosystem is also different. There are some main types such as the closed environment-induced, cultures and customs-induced, economy and technique-induced, resource-restricted, policy-induced types. Because of the interaction of above induced factors, agroecosystems often have following spatial distribution pattern, including gradient distribution, random inlaid distribution, island-like distribution and line or strip distribution.

Key words: Hucho taimen, compensatory growth, starvation and re-feeding, feeding frequency, coefficient of variation.

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