基于 TOPSIS 和灰色关联法的陕西省"三生"空间功能动态评价研究OACHSSCD

Under the background of"Beautiful China",the functional improvement of"San Sheng"Spaces has become a key issue for regional sustainable development.Based on the functional perspective of"production-life-ecology",the functional evaluation index system of the"San Sheng"space was constructed.And using the data of six sample cities in the three regions of Guanzhong,Shaannan and Shaanbei of Shaanxi Province from 2018 to 2023,and the GRA-JS-TOPSIS method,the dynamic evaluation on the"San Sheng"spatial functions in Shaanxi province was conducted.The results showed that the overall functional level in southern Shaanxi remained stable;Guanzhong area had high bearing pressure and unstable functional perform-ance during the rapid urbanization process.The starting point in the northern Shaanxi region is relatively low,but some cities had shown a clear trend of subsequent improvement.The overall spatial functions of"San Sheng"in Shaanxi Province show a significant regional differentiation pattern.So it is proposed that measures such as strengthening the control of territorial space,implementing green infrastructure construction and indus-trial transformation should be taken to promote the improvement of regional"San Sheng"spatial functions and the optimization of regional patterns.