摘要:
划定生态保护红线,是生态文明建设的一项重要任务,对维护国家和区域生态安全及经济社会可持续发展具有重要的战略意义。目前,城市化发展中面临着突出生态环境问题,在城市层面开展生态保护红线的划定工作显得更加紧迫。但现阶段生态保护红线的划分技术上仍处于不断探索与完善阶段。基于此,文章以湖北省宜昌市为例,利用RS和GIS技术,采用"识-评-落-融-分"的技术流程,提出了一套城市生态保护红线体系与划分方法。结果表明:宜昌市生态保护红线体系划分为3个层级:生态保护红线区、生态保护黄线区和生态保护绿线区;生态保护红线区、黄线区和绿线区分别占全市面积的48.83%、31.50%和19.67%。
Abstract:
Ecological protection red line division is one of the key tasks for ecological civilization construction. It is of great strategic significance to safeguard national and regional ecological security as well as economic and social sustainability. At present, there are prominent ecological environment problems in the urbanization development. It is urgent to carry out ecological protection red line division at the city level. However, the methods for ecological red line division are still on a process of continuous exploration and improvement. In this study, Yichang City in Hubei Province is taken as an example. By use of RS and ArcGIS technologies, according to the technical process of "identification-evaluation-definition-integration-classification", an urban ecological protection line system and division method is proposed. The results show that the ecological protection red line of Yichang is divided into three levels, namely, the ecological protection red line areas, the ecological protection yellow line areas, and the ecological protection green line areas. Areas of the red line areas, the yellow line areas and the green line areas account for 48.83%, 31.50% and 19.67% of the total respectively.
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