SPATIAL AND TEMPORAL CHARACTERISTICS AND REGIONAL DIFFERENCES OF URBAN EXPANSION IN THE YELLOW RIVER BASIN——BASED ON COMPARATIVE ANALYSIS OF RESOURCE-BASED AND NON-RESOURCE-BASED CITIES
This research aims to compare and analyze the difference in the rate,mode and quality of spatial expansion between resource-based cities and non-resource-based cities in the Yellow River Basin from 1995 to 2018,so as to provide references for the sustainable use of land space in the Yellow River basin.The urban space was measured by urban physical region,and the urban expansion intensity index,landscape expansion index,Human-land Relationship Index,comparative analysis and other methods were comprehensively used.The results showed that:(1)The growth rate of the area of resource-based cities was much lower than that of non-resource-based cities.The area of resource-based cities increased by 320.76%from 1995 to 2018.The area of non-resource-based cities increased by 418.62%.(2)The dominant modes of land expansion in resource-based cities and non-resource-based cities were the infill type and the marginal type respectively.Compared with non-resource-based cities,resource-based cities had more obvious sprawling development.(3)The people-land relationships between the two types of cities demonstrated certain differences in the expansion process.The resource-based cities entered the rapid land growth stage earlier than non-resource-based cities.Therefore,it is suggested that regions should take differentiated measures according to actual conditions.Urban development boundaries should be strictly delimited,the infill development and the concept of compact city should be advocated.Furthermore,the transformation of the economic structure of resource-based cities should be put forward with more employment opportunities.
urban expansionurban physical arearesource-based citiesthe Yellow River Basinregional dif-ferences