基于城市生态系统研究范式构建生态功能红线理论方法及其应用

Theory,method and application of eco-function redline construction based on urban ecosystem research paradigm

生态红线是保障区域生态系统健康和生态服务可持续性供给所必须严格保护的最小空间范围,科学划定生态红线是提高区域生态功能的重要举措。本文总结了生态红线的内涵和研究进展,重新搭建了以生态功能、环境和资源为对象,落在时间、空间、管理三维度上三条红线的组合理论框架体系,包括"生态功能红线"、"环境红线"和"资源红线"。以生态功能红线为例,从生态系统自身出发,基于城市生态系统的格局、过程、功能与宜人性的研究范式提出其划定方法,并以天津蓟县为案例,结合区域特征,区划出蓟县县域生态功能红线面积共11425 hm^2,主要分布在蓟县北部山区和河流流域。并针对相应红线区提出了对应的管控措施。本文是对生态功能红线理论、方法、模型和应用的初探,以期为后续生态红线的研究提供理论和方法支撑。

Eco-redline is supposed to be the minimum area that should be strictly protected to ensure the regional eco-health and eco-service sustainability. To draw the eco-redline scientifically would be an effective way to improve eco-function. In this paper,we summarized the previous studies and rebuilt the eco-redline framework including eco-function redline,environment redline and resource redline by considering eco-function,environment and resource categories,respectively,which could be worked on time,space and management. The three redlines together constitute the urban eco-redline framework system. By taking eco-function redline as example,and from the aspect of ecosystem itself,we proposed a method to demarcate eco-function redline based on the pattern,process,function and amenity of urban system. Using Jixian County in Tianjin as an example,we draw out the regional eco-function redline with a total area of 11425hm^2,which is mainly distributed in north mountain and river basins of Jixian. Combined with the regional characteristics and the corresponding eco-redline area,we also put forward some corresponding control measures. The exploration of our study in theory,method,model and application provides theoretical and methodical supports for further study on eco-redline in future.