Nanning City Land Use Performance Evaluation Research

Under the background of new urbanization,urban land use performance evaluation is an important yardstick to ensure the rational use of land and resources,and also an important guarantee for the high-quality development of urban construction.Based on the statistical data of Nanning from 2011 to 2020,this paper constructs the evaluation index system of urban land use from the analysis of the current situation of urban land use in Nanning.From the perspective of land use input level,land use degree and land use output benefit,aiming at the shortcomings of traditional land use performance evaluation methods,a projection pursuit classification model(RAGA-PP)with real-coded accelerated genetic algorithm is introduced.The comprehensive evaluation method and MATLAB scientific computing language are used to evaluate the land use performance,and the SPSSAU obstacle degree model is used to further analyze the obstacle factors restricting the improvement of land use performance,so as to provide decision-making reference for the rational planning and management of regional land resources.There are two main reasons for the low level of land use performance in Nanning : one is the unbalanced development of industrial structure in Nanning,and the proportion of industrial land is too low;second,the land use management level is backward,the lack of advanced management technology.According to the above analysis results,from the two aspects of accelerating the optimization and upgrading of industrial structure and improving land use management,this paper puts forward the countermeasures to improve the performance of urban land use in Nanning.In terms of accelerating the optimization and upgrading of industrial structure,one is to improve the level of economic development and optimize the upgrading of industrial structure;the second is to improve the level of industrial land and realize the transformation of economic development;the third is to accurately allocate scientific and technological talents and promote sustainable economic development.On the opposite side of improving land use management,one is to strengthen intensive management and revitalize stock land;second,strengthen supervision and supervision,implement reward and punishment means;the third is to deepen the concept of ’ two mountains ’ and enhance the development of ’ green content ’.