甘肃省耕地利用效率与经济发展耦合协调研究

Coupling and Coordination of Cultivated Land Use Efficiency and Economic Development in Gansu Province

耕地肩负着保障国家粮食安全、维护生态平衡、维系社会稳定的重任。二十大报告指出,全面建设社会主义现代化国家的首要任务是高质量发展,这对新时期的耕地利用提出更高要求。本研究以甘肃省14个地级市为研究对象,利用DEA模型测算2012~2022年甘肃省的耕地利用效率、并通过耦合协调模型测算耕地利用效率与经济发展之间的耦合协调度,并通过ArcGis软件对其进行可视化,以分析它们的时空演变趋势。结果表明:1)2012~2022年间,甘肃省耕地利用效率整体变化较大,波动趋势明显,且技术进步对耕地利用效率的变化作用显著;2)耕地利用效率与经济发展耦合协调度整体上进步较为明显,多个市区耦合协调等级经历了初步–低级–中级–高级协调四个阶段。

Arable land carries the important responsibility of guaranteeing national food security,maintaining ecological balance and sustaining social stability.The 20th report pointed out that the primary task of building a socialist modernized country in a comprehensive way is high-quality development,which puts higher requirements on the utilization of arable land in the new period.In this study,14 prefecture-level cities in Gansu Province were taken as research objects,and the DEA model was used to measure the cropland utilization efficiency,and the coupling coordination degree between cropland utilization efficiency and economic development in Gansu Province from 2012 to 2022,and the coupling coordination degree between cropland utilization efficiency and economic development was measured by the coupling coordination model,which was also visualized by the ArcGis software in order to analyze their spatial-temporal evolution trends.The results show that:1)During the period of 2012~2022,the overall change of cropland utilization efficiency in Gansu Province is large,the fluctuation trend is obvious,and the technological progress plays a significant role in the change of cropland utilization efficiency;2)The coupling and coordination degree between cropland utilization efficiency and economic development progresses obviously on the whole,and the coupling and coordination grades of several urban areas experience four stages of preliminary,low-level,medium-level and high-level coordination.