基于GWR的重庆市耕地集约利用水平时空演变特征及影响因素分析  

Spatiotemporal Evolution Characteristics and Factors Analysis of Land Intensive Use Level in Chongqing Based on GWR

作　　者：唐康棚 陈国建[1] 毛彦冰 苏岚 TANG Kang-peng;CHEN Guo-jian;MAO Yan-bing(College of Geography and Tourism,Chongqing Normal University,Chongqing 401331)

机构地区：[1]重庆师范大学地理与旅游学院,重庆401331

出　　处：《安徽农业科学》2025年第6期66-73,共8页Journal of Anhui Agricultural Sciences

基　　金：重庆市农村土地整治中心科研项目(cstc2021ycjh-bgzm0333);重庆师范大学创新创业团队项目(CQYC201903221)。

摘　　要：[目的]探究重庆市2014—2020年耕地集约利用水平时空演变格局及影响因素。[方法]综合考虑耕地集约利用的社会-经济-生态效益,从投入强度、利用程度、产出效益以及可持续状况4个方面选取15个指标,构建综合评价指标体系,利用熵权法确定指标权重计算集约利用度,分析重庆市2014—2020年耕地集约利用水平的时空演变特征,并使用GWR模型探究其影响因子。[结果]重庆市2014—2020年耕地集约利用整体水平呈逐年上升趋势。分区域来看,主城新区、渝东北和渝东南均呈上升趋势,中心城区大部分波动变化,仅有沙坪坝区为下降趋势。影响因素分析发现,投入强度对耕地集约利用水平影响最大,且空间差异明显,产出效益系数值略低于投入强度,其次为可持续状况,最后为利用程度。[结论]中心城区应合理规划城乡布局,整合可利用耕地。主城新区为重庆市耕地集约利用水平增长极,具有联动主城,传递周边的作用,应助力科技农业发展,探索跨区域农业合作新模式,渝东北和渝东南应以绿色发展为生命线,注重生态环境保护工作。[Objective]To explore the spatiotemporal evolution pattern and influencing factors of intensive land use in Chongqing from 2014 to 2020.[Method]Taking into consideration the socioeconomic and ecological benefits of intensive land use,a comprehensive evaluation index system was constructed based on four aspects:input intensity,utilization degree,output efficiency,and sustainability.Fifteen indicators were selected to construct the evaluation index system.The entropy weight method was employed to determine the weights of the indicators and calculate the degree of intensive land use.The spatiotemporal evolution characteristics of intensive land use in Chongqing from 2014 to 2020 were analyzed,and the GWR model was used to explore its influencing factors.[Result]The overall level of intensive land use in Chongqing showed an increasing trend from 2014 to 2020.Regionally,the main urban area,the northeast,and southeast of Chongqing exhibited an upward trend,while most parts of the central urban area showed fluctuating changes,with only Shapingba District showing a downward trend.The analysis of influencing factors revealed that input intensity had the greatest impact on the level of intensive land use,with significant spatial differences.The coefficient of output efficiency was slightly lower than that of input intensity,followed by sustainability,and finally utilization degree.[Conclusion]The central urban area should plan the urban and rural layout rationally and integrate available arable land.The main urban area serves as the growth pole for the level of intensive land use in Chongqing,playing a role in connecting the central urban area and transmitting to the surrounding areas.It should support the development of scientific agriculture and explore new models of cross-regional agricultural cooperation.The northeast and southeast of Chongqing should prioritize green development as their lifeline and focus on ecological environmental protection efforts.

关 键 词：耕地集约利用 GWR 时空演变 重庆市 

分 类 号：F301.24[经济管理—产业经济]