Abstract
A high coupling coordination degree of urban land use efficiency promotes sustainable regional economic development. In this study, land use efficiency coupling coordination degrees were calculated for 36 mining cities of western China, with a focus on economic, social, and ecological benefits for land use efficiency. Four years (2000, 2005, 2010, and 2015) of data were selected. A land use efficiency index system was generated and the improved entropy method was used to calculate the index weights of land use efficiency for each year. The spatial distributions of the coupling coordination degree were assessed by the ArcGIS spatial analysis tool. Spatial correlation analysis was conducted for the coupling coordination degree. The following conclusions could be drawn: (1) According to the composite index results, urban land use efficiency could be divided into three stages and showed several different time patterns in mining cities of western China; (2) analysis of the spatial and temporal distributions of the land use efficiency coupling coordination degree identified a low level of coupling coordination and reluctant coupling coordination. An obvious core-periphery and gradual trickle-down trend was observed; (3) the land use efficiency of western mining cities presents negative and positive spatial autocorrelation characteristics. Shizuishan city, Ordos city, Jinchang city, and Wuhai city have significant aggregation types. Therefore, the western mining cities were subjected to different complex time and space characteristics.
Highlights
The ultimate goal of land use is to achieve a comprehensive and coordinated development of economic, social, and ecological benefits of land use [1]
Land resources can promote orderly urbanization, and better promoting urban land use efficiency and achieving a high coupling coordination degree with balanced and healthy development is an urgent issue of urbanization in China
In Formulas (10) and (12), Di and Dj represent the coupling coordination degree of space units i and j, respectively; D represents the mean value of the coupling coordination degree of space units i and j, respectively; n represents the number of units in the observed space; Wij represents the spatial weight coefficient matrix; S2 represents the variance of the coupling coordination degree of each spatial element; I represents the global Moran’s I; and Ii represents the partial local indication of spatial association (LISA) index
Summary
The ultimate goal of land use is to achieve a comprehensive and coordinated development of economic, social, and ecological benefits of land use [1]. An excessively fast pace of urbanization can lead to problems of land use in many respects, e.g., an accelerated decline of ecological quality, land degradation, an increasingly prominent contradiction between humans and land, and a drop of the overall urban land use benefitting level. This paper selected mining cities in western China, an area with a fragile environment and severe land degradation, where little research has been conducted on the land use efficiency coupling coordination degree. The results highlight the current conditions and improve the planning and implementation of the economic development of western China’s mining cities
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