Land consolidation mode based on radiation model and potential model for dividing urban and rural zone functions

Land consolidation based on local condition and regional functions of rural and urban areas needs to be integrated under the “Rural Revitalization Strategy”. This integration requires land consolidation to transfer from a single-target project to a tool for reshaping “Production-Living-Ecology” and optimizing population structure. This study used 619 villages of Yangzhou City, Jiangsu Province as an example to extend the land consolidation space from rural areas to combined rural and urban areas, and to replace the space reconstruction with reconstructing the human-land relationship during the land consolidation process. The urban and rural areas of Yangzhou were firstly assigned to different functions using the radiation and potential models. According to these functions, the areas were then divided into land regulation zones featured with different transformation targets. The results showed that: 1) The 619 villages were divided into 4 functional zones: the urban core zone, the urban expansion zone, the central village zone, and the ecological-agricultural zone, which accounted for 7.76%, 27.62%, 6.55% and 58.07% of the study area, respectively. Therefore, taking the village (community) as the unit, Yangzhou could be divided into the urban core area, the urban expansion area, the central village area and the ecological-agricultural area. 2) 4 land regulation zones were generated, and the urban expansion zone was located in the Yangtze River Plain, the town expansion zone was distributed along traffic arteries, the central villages were clustered in the core of ecological-agricultural area, and the ecological agriculture zone was scattered in the Nanjing-Zhenjiang-Yangzhou hilly area and Lixiahe Plain. According to the zoning setting, the land consolidation area of Yangzhou was divided into the 4 zones. Therefore, the land consolidation space was expanded from the rural area to the total urban and rural area, the land consolidation process was transformed from the space reconstruction to the human-land relationship reconstruction, and the land consolidation of spatial relations was transformed from the functional fragmentation to the organic integration. 3) The land consolidation goal of urban and town expansion area is reshaping the space of industrial production + living + public service, while the land consolidation goal of the central village area is reshaping the space of living + public service, and ecological-agricultural area is reshaping the space of ecology + agricultural production. 4) The measures to deal with demographic transition in the 4 land regulation zones are achieving the transition of the concurrent producers to the urban producers, achieving the transition of the agricultural producers to the concurrent producers, achieving the enhancement of the ability of the concurrent producer integrating elements, and achieving the transition of the concurrent producers to the high-quality agricultural producers, respectively.