中国沙漠 ›› 1993, Vol. 13 ›› Issue (2): 29-36.

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  1. 西北师范大学地理系, 兰州
  • 出版日期:1993-05-20 发布日期:1993-05-20

Agricultural Ecosystem and Adjustment Measures in Desert-oasis in Jiuquan, Gansu Province

Zhang Bo   

  1. Department of Geography, Northwest Normal University
  • Online:1993-05-20 Published:1993-05-20

摘要: 绿洲农业是在荒漠环境下人为控制的生态系统,具有生态结构简单、生态系统脆弱、稳定性差等特点。本文运用系统论、耗散结构理论及生态学的基本原理,对酒泉绿洲农业生态系统的结构和功能进行了分析,提出了以水定地,解决水土平衡问题,促使水盐动态的协调。制定了合理的灌溉定额及其保护和发展林草植被的调控措施。

关键词: 绿洲农业, 生态系统, 水土平衡

Abstract: Oasis agriculture is a man-controlled ecosystem in the desert environment. It has a simple ecological structure, fragile ecosystem and weak stability. This paper analyses the structures and functions of agro-ecosystem in Oasis by using the system theory, dissipative structural theory and ecological theory and puts for word the following adjustment measures:Developing Oasis according to water volume in order to reach the balance between water and land; promoting a dynamic equilibrium between water and salt:working out a irrigation quota as well as conserving and developing forestry and grasses.