长株潭城市群土地利用结构变化及驱动力分析

Analysis of Land Use Structure Change and Driving Force Based on Changzhutan City Group

土地利用格局变化关系到土地资源的优化配置和生态安全。本文基于2010-2017年长株潭城市群土地利用结构数据,测度了长株潭城市群及各区县的土地利用结构信息熵,并在此基础上,进一步探讨了土地利用结构变化的驱动机制。结果表明:长株潭城市群中3个城市的土地利用结构信息熵及其驱动力存在差异;长沙市土地利用结构信息熵驱动力主要为经济驱动及城镇化进程;株洲市和湘潭市土地利用结构变化驱动力主要为城乡经济发展结构。基于此,提出长株潭三市有针对性的土地利用策略,长沙市应保持经济发展优势,并稳定土地利用有序程度,株洲市和湘潭市应注重城乡发展的均衡程度。

The change of land use pattern is related to the optimal allocation of land resources and ecological security.Based on the land use structure data of Changsha-Zhuzhou-Xiangtan city cluster from 2010 to 2017,this paper measured the information entropy of land use structure of Changsha-Zhuzhou-Xiangtan city cluster and all districts and counties,and further discussed the driving mechanism of land use structure change on this basis.The results showed that there were differences in the information entropy of land use structure and its driving force among the three cities in Changsha-Zhuzhou-Xiangtan urban agglomeration.The driving forces of land use structure information entropy in Changsha were mainly economic driving and urbanization process.The driving force of land use structure change in Zhuzhou and Xiangtan was mainly the urban and rural economic development structure.Based on this,this paper puts forward targeted land use strategies for the three cities of Changsha-Zhuzhou-Xiangtan.Changsha should maintain its economic development advantages and stabilize the orderly degree of land use.Zhuzhou city and Xiangtan city should pay attention to the balance of urban and rural development.