Resilience spatial measurement of coordinated spatial planning in hilly areas: A case study of Chaling county, Hunan province

Abstract

County space is the basic unit of spatial planning that shows the greatest urban and rural integration in China. The conflicts or overlaps between spatial development and spatial constraint are particularly prominent in county level territorial spatial planning. Chaling County is a typical hilly area in Hunan Province. Based on land use suitability evaluation and resilience spatial measurement, this study developed a land use resilience evaluation system in typical hilly areas, examined the resilience range of various types of land, spatial transfer of different land use types, and the resilience interval and spatial measurement of different land use types in order to analyze the characteristics of the spatial transfer of resilience space and optimization. The results show that the comprehensive evaluation values of land use structure resilience in Chaling County is lower than the average level of Hunan Province, with low contribution of social and economic resilience. Ecological land has the greatest influence on resilience space. From the perspective of resilience range, the largest contribution to future uncertainty county-wide is from woodland (2.97%), garden land (3.47%), cultivated land (0.90%), and water area (1.02%), and the smallest is from other agricultural land (0.06%) and nature reserve land. The spatial resilience transfer of different land use types shows significant zonal distribution characteristics. The largest overlapping area is ecological land and agricultural land, accounting for 6.41% of the total area, followed by construction land and agricultural land, accounting for 0.97% of the total. It is necessary to strengthen differentiated management and control for the resilience overlapping areas of different land use types, especially the transfer from agricultural land to construction land. This study not only provides some support for county territorial spatial planning and resilience interval from a multi- planning coordination perspective, but also contributes a case reference for similar regional management and control measures.