The Evolution of Land Use Function and the Diagnosis of Land Use Barriers from the Perspective of Ecological-living-productive Spaces:Taking Nanjing,the New First-tier city,as an Example
In a multi-functional land use evaluation index system established based on the ecological-living-productive space,an improved entropy weight TOPSIS method was used to evaluate the multi-functions of land use in the new first-tier city of Nanjing,and its time-varying characteristics,trade-off synergy and barriers,and so on.The results showed that:the multi-functions of land use in Nanjing showed an inverted U-shaped trend during the study period,in which the productive and living functions were increased and the ecological functions were declining,there were different degrees of synergy and trade-off between the productive,living and ecological functions of the land in Nanjing,and the barriers between the productive and ecological functions of the land continued to increase,among which the annual average concentration of SO2 and forest coverage had a significant effect,and the degree of disturbance of living function decreased continuously.Therefore,the new first-tier cities should strengthen the ecological spatial service function of land and reduce the negative ecological effects brought by living and productive activities in the balance of the synergistic relationship between land living,productive and ecological functions,and guide the evolution of land functions to a highly coordinated direction.
ecological-living-productive spaceland use functionentropy right TOPSISbarrier degreetrade-off/collaborative analysis
NETL
NSTL
万方数据
