基于景观格局优化的北京市域生态环境保育途径

北京城市空间持续扩张导致对地域生态系统的胁迫不断增强,城镇发展空间和自然生态空间的矛盾日趋尖锐,城市的可持续发展受到制约.如何合理配置城市用地和区域空间资源,使城市与自然的关系重归和谐,已成为北京城市发展必须面临的重要课题.运用生态敏感性与适宜性分析的方法,辨识与诊断北京市域生态系统存在的问题.尝试通过景观格局的整体优化, 实现生态环境的保育,使城镇生态景观斑块镶嵌于自然生态景观基质中,并通过多种类型的生态廊道相连, 提高地域生态系统稳定性,防止城市发展空间无序蔓延,为城市地域生态系统服务功能的正常发挥提供保障.

Eco-environment Protection and Conservation of Beijing Area Based on Improvement of Landscape Pattern

The continual space extending of Beijing City results in the increasing threaten to the urban ecosystem, the contradiction are becoming increasingly acute between the room for growth of towns and the space of natural ecology, sustainable development of cities are restrained. How to equitable distribute urban land and region of space resource for the harmonies relationship between cities and nature has become an important problem of the development of Beijing City. This article analyzes the problem with ecology sensibility and expediency, distinguishing and diagnosing the problem of urban ecosystem of Beijing City, to realize protecting and fostering the ecological environment by trying global optimization of landscape structure, and to make the clot of ecology landscape of towns set in the matrix of natural ecology landscape by interconnecting of different ecology covered ways, enhancing the stability of regional ecology system, preventing the room of growth of cities expanding disorderly, for ensuring the service function of regional ecology system running in order.