长江经济带耕地利用绿色转型与城乡融合耦合协调发展的时空格局研究

Spatial-temporal pattern of coupling coordination between green transition of farmland use and urban-rural integration development in the Yangtze River Economic Belt

在深入实施国家粮食安全战略,协同推进经济高质量发展和生态环境高水平保护背景下,探究耕地利用绿色转型与城乡融合发展的耦合协调是解决耕地保护、生态保育与经济建设之间冲突的关键。从人地关系视角剖析了耕地利用绿色转型与城乡融合发展的耦合机理;通过解读耕地利用绿色转型与城乡融合发展的内涵构建了相关评价指标体系,并以长江经济带130个地级市为例,基于2000、2005、2010、2015和2020年数据,运用耦合协调度模型分析耕地利用绿色转型与城乡融合发展耦合协调的时空格局特征。结果表明:(1)2000—2020年长江经济带耕地利用绿色转型指数由0.208增至0.294,增幅为40.802%,呈现“东北部高西南部低”的分布特征。(2)2000—2020年长江经济带城乡融合发展指数由0.465增至0.492,增幅为5.858%,呈现“中东部高西南部低”的分布特征。(3)2000—2020年长江经济带耕地利用绿色转型与城乡融合发展的耦合协调度由0.556上升到0.612,增幅为11.065%,呈现“中东部高西部低”的分布特征;耦合协调类型从基本协调型转变为中度协调型。各子系统间的耦合协调程度差异较大,耕地利用绿色转型各子系统中,模式转型与城乡融合发展的耦合协调度较低;城乡融合发展各子系统中,人口融合、空间融合与耕地利用绿色转型的耦合协调度较低。(4)耕地利用绿色转型中的模式转型,城乡融合发展中的人口融合、空间融合是长江经济带发展需重点关注的问题。研究结果可为长江经济带耕地资源的优化利用、生态保护以及城乡融合发展提供借鉴。

In the context of the comprehensive implementation of the national food security strategy,simultaneous advancement of high-quality economic development and robust protection of the ecological environment,exploring the coupling and coordination relationship between the green transition of farmland use and urban-rural integration development becomes crucial for resolving conflicts among farmland protection,ecological conservation,and economic development.This study,from the perspective of the human-land relationship,dissects the coupling mechanism between green transition of farmland use and urban-rural integration development.By interpreting the connotation of green transition of farmland use and urban-rural integration development,a relevant evaluation index system has been established.Using the 130 prefecture-level cities in the Yangtze River Economic Belt as a case study and data from the years 2000,2005,2010,2015,and 2020,this study employs a coupling coordination model to analyze the spatial-temporal pattern characteristics of the coupling coordination between green transition of farmland use and urban-rural integration development.The results showed that:(1)From 2000 to 2020,the index of green transition of farmland use in the Yangtze River Economic Belt increased from 0.208 to 0.294,with an increase of 40.802%.The distribution pattern indicated a high concentration in the northeast and a lower level in the southwest.(2)From 2000 to 2020,the index of urban-rural integration development in the Yangtze River Economic Belt increased from 0.465 to 0.492,marking a growth of 5.858%.The distribution pattern revealed a higher concentration in the central and eastern regions and a lower level in the southwest region.(3)From 2000 to 2020,the coupling coordination degree between green transition of farmland use and urban-rural integration development in the Yangtze River Economic Belt increased from 0.556 to 0.612,representing a growth of 11.065%.The distribution pattern indicated a higher degree of coupling coordination in the central and eastern regions and a lower level in the western region.The type of coupling coordination changed from basic coordination to moderate coordination.The degrees of coupling coordination among the subsystems exhibited notable variations.Specifically,within the subsystems related to green transition of farmland use,the coupling coordination degree between model transition and urban-rural integration development was comparatively lower.Within the subsystems of urban-rural integration development,the coupling coordination degrees of population integration,spatial integration,and green transition of farmland use were relatively lower.(4)The model transition in green transition of farmland use,population integration and spatial integration in urban-rural integration development are the issues are pivotal issues demanding focused attention in the development of the Yangtze River Economic Belt.The research findings can provide valuable insights for the optimal utilization of farmland resources,ecological conservation,and urban-rural integration development in the Yangtze River Economic Belt.