Abstract:
To achieve a high coupling coordination degree of urban land use efficiency by considering the social, economic and ecological impacts is of significance for promoting the sustainable development of regional economy. In this study, 36 prefecture-level cities from typical mining cities in Western China have been investigated to analyze the coupling coordination degree of land use efficiency in terms of the economic, social and ecological benefits. On the basis of previous studies, the years of 2000, 2005, 2010, and 2015 were taken as four time points and the index system of land use efficiency was formed. The improved entropy method was used to evaluate the comprehensive benefits of land use in the typical mining cities of Western China, which avoided the disadvantages of traditional entropy method that always produces the extreme and negative values. The coupling coordination degree can be calculated by the coupled coordination model. The results show that the urban land use efficiency is distributed as echelon characterization and the comprehensive level of land use efficiency is gradually increased through the index evaluation of land use efficiency of typical mining cities in Western China. The analysis of coupling degree shows the number of cities in a lower coupling degree is three times of that of cites in a poor stage between 2000 and 2015. Overall, the coupling degree of land use efficiency of typical mining cities in Western China is not high and most of them are low. The analysis of coordination degree shows the coordination degree is between 0-0.69 from 2000 to 2015, which is mainly dominated as the coupling and coordination degree of land use efficiency shows obvious decrease from the center to the periphery.