Abstract
How to explore the allocation and green utilization level of urban construction land resources has an important role in the sustainable development of the city. Taking 47 counties and cities in Jilin Province as an example, this paper evaluates the green utilization efficiency of urban construction land (GUEUCL) in 2011 and 2015 by using the unexpected output super-SBM model and explores the spatial-temporal differentiation characteristics and influencing factors of GUEUCL by using GIS and machine learning methods. The results show that (1) the GUEUCL in Jilin Province is low, mainly distributed in small- and medium-sized areas, with significant positive spatial correlation. The L-L concentration area is mainly distributed in the eastern region, but the degree of spatial concentration is small, the spatial structure characteristics of the two periods are different, and the spatial heterogeneity is large; (2) the internal factor decomposition shows the impact of pure technical efficiency on the comprehensive efficiency and the restriction ability is stronger than the scale efficiency, that is to say, the factors such as management and technology have a greater impact on the comprehensive efficiency; (3) the relative importance of external factors has always been ranked as socioeconomic factors, urban development factors, and natural science and technology factors. This paper focuses on the temporal and spatial characteristics of each county and city and the influencing factors, which provides a certain value reference for the pilot of ecological construction and the development of ecoenvironmental benefit economic system in Jilin Province.
Highlights
How to explore the allocation and green utilization level of urban construction land resources has an important role in the sustainable development of the city
Land is a complex system of socioeconomic-natural environment, and the efficiency of traditional urban construction land use is limited from the socioeconomic perspective, ignoring the green development concept of land use efficiency following the principle of coordination of economic, social, and ecological benefits. erefore, in the current background of urban sprawl, resource waste and environmental pollution and ecological civilization construction require “green development,” and the green utilization efficiency of urban construction land (GUEUCL) has attracted wide attention of the state and society [24,25,26,27,28,29,30,31,32,33]
In order to analyze the distribution characteristics of GUEUCL units more clearly, according to the results of unexpected output superSBM model evaluated, the spatial pattern scale of GUEUCL is divided into three categories: high, medium, and low by the method of natural interruption. e spatial scale distribution of GUEUCL in two time periods in Jilin Province is shown in Figure 3. e GUEUCL of counties and urban areas in Jilin Province is relatively low, mainly distributed in small and medium scale
Summary
How to explore the allocation and green utilization level of urban construction land resources has an important role in the sustainable development of the city. Taking 47 counties and cities in Jilin Province as an example, this paper evaluates the green utilization efficiency of urban construction land (GUEUCL) in 2011 and 2015 by using the unexpected output super-SBM model and explores the spatial-temporal differentiation characteristics and influencing factors of GUEUCL by using GIS and machine learning methods. The research focuses on the optimal allocation, intensive utilization, and efficiency evaluation of urban construction land [6,7,8,9], even the evaluation index, driving factor analysis, and improvement of management methods [10, 11]. Land is a complex system of socioeconomic-natural environment, and the efficiency of traditional urban construction land use is limited from the socioeconomic perspective, ignoring the green development concept of land use efficiency following the principle of coordination of economic, social, and ecological benefits. Land is a complex system of socioeconomic-natural environment, and the efficiency of traditional urban construction land use is limited from the socioeconomic perspective, ignoring the green development concept of land use efficiency following the principle of coordination of economic, social, and ecological benefits. erefore, in the current background of urban sprawl, resource waste and environmental pollution and ecological civilization construction require “green development,” and the GUEUCL has attracted wide attention of the state and society [24,25,26,27,28,29,30,31,32,33]
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