双评价理论探索与福建实践

Exploration on dual evaluation theory and the practice in Fujian Province

双评价作为国土空间规划的基础性工作,倍受关注。基于国土空间规划视角,探索双评价的理论与方法,诠释资源、环境、承载力、双评价、三生空间和三类空间等关键性名词的概念。在福建省双评价实践中,采用简单模型法与NPP法相结合,开展生态保护重要性评价,识别生态保护空间;根据木桶原理,采用加权求和法和限制因子法,开展农业生产和城镇建设不同功能指向的国土空间开发适宜性评价,识别农业生产和城镇建设空间的数量和质量;为优化福建省生态安全格局、农业发展格局和城镇建设格局,以及全省的“三区三线”划定工作提供数据支撑。

Dual evaluation,as the basic work of territorial space planning,has attracted much attention.Based on the perspective of territorial space planning,this paper explored the theory and method of dual evaluation,reorganized and scientifically defined the concepts of key terms such as resources,environment,carrying capacity,dual evaluation,“Industrial-living-ecological”space and“urban construction-agricultural production-ecological protection”space.In the practice of the dual evaluation in Fujian Province,the simple model method and NPP method were used to evaluate the importance of ecological protection and identify the ecological protection space.According to Cannikin Law,using the weighted summation method and the limiting factor method,the suitability of land space development for different functions including agricultural production and urban construction was evaluated,and the quantity and quality of agricultural production and urban construction space were identified.This paper provides data support for the pattern optimization of ecological security,agricultural development and urban construction,as well as the delineation of“three areas and three lines”in Fujian Province.