平原农区适宜性-集约性耦合协调的乡村空间重构

为重构乡村空间格局，本研究以典型平原农区曹县为例，分别构建村庄布局适宜性和用地集约性评价指标体系评价村庄适宜性程度和集约化水平，构建耦合协调度模型识别乡村空间重构类型。结果表明：曹县村庄综合适宜性指数和综合集约性指数平均值分别为0.755和0.568，适宜性较高，集约性一般，中心城区、县域西北和镇驻地村庄为高值区；适宜性-集约性耦合协调度平均为0.806，耦合协调度高，中度耦合协调村庄最多。综合村庄适宜性、集约性、耦合协调度及空间分布，提出城乡融合、集聚扩展、保留优化、集约缩减和迁建引导5种乡村空间重构类型，并提出建设新型生活社区和发展电商产业、规模农业、休闲农业等建议。研究结果可为曹县分类推进乡村振兴和国土空间规划编制提供理论依据和技术支撑。

Rural spatial reconstruction based on coupling and coordination of suitability-intensiveness in plain agricultural areas

To reconstruct the rural spatial pattern,this study took a typical plain agricultural area,Caoxian County,as an example,constructed the evaluation index system of the village layout suitability and land intensiveness respectively to evaluate the suitability and intensification level of the villages,and assembled a coupling and coordination model to identify the type of rural spatial reconstruction.The results showed that the average comprehensive suitability and intensiveness scores of the villages in Caoxian County were 0.755 and 0.568 respectively,with a relatively high level of suitability and general level of intensity,and the central city,the northwestern part of the county and nearby villages were the areas with relatively higher village suitability and intensification level.The coupling coordination degree of the suitability and intensiveness was 0.806 on average,with a high degree of coupling and coordination,and moderately coupled and coordinated villages account for the largest part of the whole.By comprehensively considering the level of village layout suitability and land intensiveness,their coupling and coordination degree,and the characteristics of spatial distribution,five rural spatial reconstruction types were proposed,including urban-rural integration,agglomeration expansion,retention optimization,intensive reduction,and relocation and construction,and suggestions were put forward for the construction of new types of living community and the development of the e-commerce industry,large-scale agriculture,leisure agriculture,etc.The research results could provide a theoretical basis and technical support to promote rural revitalization by category and the compilation of national territorial and spatial planning for Caoxian County.