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北京市门头沟区生态修复模式探讨

黄锦楼;欧金明;王如松;阳文锐   

  1. 中国科学院生态环境研究中心城市与区域生态国家重点实验室, 北京 100085
  • 收稿日期:2007-04-02 修回日期:1900-01-01 出版日期:2008-02-10 发布日期:2008-02-10

An approach to the ecological rehabilitation modes of Mentougou District in Beijing.

HUANG Jin-lou; OU Jin-ming; WANG Ru-song; YANG Wen-rui   

  1. State Key Laboratory ofUrbanand Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
  • Received:2007-04-02 Revised:1900-01-01 Online:2008-02-10 Published:2008-02-10

摘要: 以往的生态修复侧重于自然生态系统的修复,强调通过各种技术和手段,将破坏的生态系统恢复到原生生态系统的状态。目前,生态修复趋向于恢复自然生态系统和建设人工生态系统并举的做法。基于复合生态系统理论的共轭生态修复,一方面要恢复受到破坏的生态系统结构、功能和过程;另一方面营建和保育生态系统,为人类提供生态服务功能。本文以北京市门头沟区为例,对比研究了生态修复的3种模式:基于现实能力的渐进式生态修复、基于政府主导的强势生态修复和基于复合生态系统理论的共轭生态修复3种模式。情景分析表明,共轭生态修复能以较低的社会经济成本获得最大的生态效益和社会效益。

关键词: 根源信号, 气孔, 模型, 水分利用效率, 农业节水

Abstract: Ecological rehabilitation was previously emphasized on the restoration of natural ecosystem, with the stress on the recovery of damaged ecosystem to primary ecosystem via various techniques and means, but nowadays, it tegrates the restoration of natural ecosystem and the construction of artificial ecosystem. The conjugated ecological rehabilitation based on complex ecosystem theory is to rehabilitate the damaged ecosystem structure, function and process, and to construct and maintain the ecosystem to provide human with ecosystem services. Taking the Mentougou District in Beijing as an example, a comparative study was made on the three modes of ecological rehabilitation, i.e., gradual ecological rehabilitation based on realistic ability, ecological rehabilitation based on government dominancy, and conjugated ecological rehabilitation based on complex ecosystem theory. Scenario analysis indicated that conjugated ecological rehabilitation could achieve maximal ecological and social benefits with least socio-economic costs.

Key words: Root sourced signaling, Stomata, Model, Water use efficiency, Water saving