基于熵权TOPSIS和耦合协调模型的四川省土地利用效益耦合协调关系及时空演变特征  

Coupling Coordination Relationship and Spatiotemporal Evolution Characteristics ofLand Use Benefit in Sichuan Province Based on Entropy WeightTOPSIS and Coupling Coordination Model

作　　者：谢贤健[1] XIE Xianjian(School of Geography and Resource Science,Neijiang Normal University,Neijiang,Sichuan 641112,China)

机构地区：[1]内江师范学院地理与资源科学学院,四川内江641112

出　　处：《水土保持学报》2024年第1期267-277,共11页Journal of Soil and Water Conservation

基　　金：长江科学院开放研究基金项目(CKWV2017523/KY);国家自然科学基金项目(42207413);四川省社会科学重点研究基地沱江流域高质量发展研究中心项目(TJGZL-2023-07)。

摘　　要：[目的]从社会、经济、生态环境3个方面评价区域土地利用效益及其耦合关系有利于实现土地资源的合理配置及优化用地结构。[方法]以四川省21个地市州为研究对象,利用熵权TOPSIS法和耦合协调度模型,构建了2010—2020年四川省土地利用效益的综合评价体系,并基于GIS技术,分析了土地利用的社会、经济、生态环境效益及其耦合协调关系的时空演变特征。[结果](1)四川省各地市州的土地利用综合效益整体上呈上升趋势,空间上具有“西北高东南低”的空间格局;土地利用的经济、生态环境效益整体上具有上升趋势,分别表现为“西高东低”和“中东部高西部低”的空间格局;土地利用社会效益整体上呈下降趋势,具有“中部高两翼低”的空间格局;三大效益在空间均具有较显著的聚集特征。(2)四川省各地市州的土地利用耦合协调等级为4个,总体协调水平不高,以勉强协调为主,其次是濒临失调,具有“中间高两翼低”的空间格局,且耦合等级相同的城市聚集度较高,土地利用效益耦合协调等级在空间分布上需进一步改善。(3)影响四川省地利用效益大小的因子依次为社会>经济>社会经济>社会生态>生态环境效益系统;土地利用效益耦合协调关系主要受社会、经济效益单一因子影响,其次是社会经济复合因素,最后是社会生态复合因素的影响。[结论]四川省各地市州的土地利用综合效益整体上呈上升趋势,区域差异显著,总体的耦合协调水平处于较低等级,且耦合等级相同的城市聚集度较高,在今后的发展中应该调控城镇化的无序扩张,注重城市基础公共服务等设施的建设,增加城市环境建设投入,促进四川省土地经济效益-社会效益-生态环境效益间的协调发展,以期为提升四川省土地利用综合效益提供参考。[Objective]Evaluating regional land use efficiency and its coupling relationship from three aspects of society,economy,and ecological environment is beneficial for achieving rational allocation of land resources and optimizing land use structure.[Method]In this paper,taking 21 cities and prefectures in Sichuan Province as the research objects,a comprehensive evaluation system for land use benefit in Sichuan Province from 2010 to 2020 was constructed using the entropy weight TOPSIS method and coupling coordination degree model.Based on GIS technology,the coupling coordination relationship and spatiotemporal evolution characteristics of the social,economic,and ecological environmental benefits of land use were analyzed.[Result](1)the overall comprehensive land use benefit of various cities and prefectures in Sichuan Province was on the rise,with a spatial pattern of“high in the northwest and low in the southeast”.The overall economic benefits of land use and ecological environmental benefits were showing an upward trend,manifested as a spatial pattern of“high in the west and low in the east”and“high in the central and western regions and low in the west”,respectively.The overall social benefits of land use were showing a downward trend,with a spatial pattern of“high in the middle and low in the two wings”.The three major benefits all had significant clustering characteristics in space.(2)There were four levels of land use coupling coordination in various cities and prefectures in Sichuan Province,with an overall coordination level that was not high,mainly being barely coordinated,followed by a near imbalance,and the spatial pattern being“high in the middle and low on the two wings”.Cities with the same coupling level had higher aggregation,and the land use benefit coupling coordination level needs further improvement in spatial distribution.(3)The factors that affect the size of land use benefit in Sichuan Province were in the order of social>economic>socio-economic>social ecology>ecological env

关 键 词：四川省 土地利用效益 时空耦合 地理信息系统 

分 类 号：F293.2[经济管理—国民经济]