基于DEA的四川省主要城市土地利用效率分析与优化设计研究

Research on Land Use Efficiency Analysis and Optimal Design of Major Cities in Sichuan Province Based on Data Envelopment Analysis (DEA)

本文以四川省18个主要城市为研究区域,运用DEA-CCR模型分析了2019年四川省主要城市土地利用效率,并对其期望产出和非期望产出进行对比分析,给出优化设计方案。研究结果表明:1) 在只考虑期望产出的情况下,四川省主要城市土地利用经济效率整体较高,其中成都市、攀枝花市、德阳市、绵阳市、乐山市、广安市的土地利用效率属于DEA有效,自贡市、内江市、眉山市、宜宾市、达州市、雅安市以及资阳市虽然土地利用效率为DEA无效,但效率值偏高,都达到了0.8以上。2) 在考虑非期望产出的情况下,四川省主要城市的土地利用生态效率整体偏低。巴中市和资阳市土地利用效率为DEA有效,其中成都市的土地利用效率过低。综上,四川省主要城市在今后的发展过程中,要降低对生态环境的破坏,各地应积极落实节能减排的相关政策,同时,加快产业转型升级,做到可持续发展。

In this paper, DEA-CCR model was used to analyze the land use efficiency of 18 major cities in Sichuan Province in 2019. The expected output and unexpected output were compared and analyzed, and the optimal design scheme was proposed. The results show that 1) when only the expected output is considered, the overall economic efficiency of land use in major cities in Sichuan province is relatively high, and the land use efficiency of Chengdu, Panzhihua, Deyang, Mianyang, Leshan and Guang’an is DEA effective. Although the land use efficiency of Zigong city, Neijiang City, Meishan City, Yibin City, Dazhou City, Ya’an city and Ziyang City is invalid with DEA, the efficiency value is high, reaching above 0.8. 2) Considering the non-expected output, the land use ecological efficiency of major cities in Sichuan province is generally low. The land use efficiency of Bazhong city and Ziyang City is DEA effective, and the land use efficiency of Chengdu city is too low. To sum up, major cities in Sichuan province should reduce the damage to the ecological environment in the future development process, all regions should actively implement the relevant policies of energy conservation and emission reduction, at the same time, accelerate industrial transformation and upgrading, and achieve sustainable development.