喀斯特地区土地利用冲突识别与影响机制  

Identification and mechanism of land use conflict in karst area

作　　者：廖超明 韦媛媛 唐丹 云子恒 李宥儒 Liao Chaoming;Wei Yuanyuan;Tang Dan;Yun Ziheng;Li Youru(College of Natural Resources and Surveying and Mapping,Nanning Normal University,Nanning 530001,China;Guangxi College of Natural Resources,Chongzuo,Guangxi 532100,China)

机构地区：[1]南宁师范大学自然资源与测绘学院,南宁530001 [2]广西自然资源职业技术学院,广西崇左532100

出　　处：《水土保持研究》2025年第1期358-367,共10页Research of Soil and Water Conservation

基　　金：国家自然科学基金“基于卫星对地观测技术的广西‘山’字型构造时空演变特征研究”(42164001);广西2022年自治区级职业教育专业教学资源库建设项目(GZ202220);广西2022年本科教育教学重点项目建设经费(602030389173301)。

摘　　要：[目的]科学识别喀斯特地区土地利用空间冲突,揭示其影响机制,以寻求区域土地利用可持续发展路径。[方法]以典型喀斯特地貌的漓江流域为研究区,基于景观生态风险评价方法构建土地利用冲突测度模型,定量分析漓江流域1990-2020年土地利用冲突时空分异特征,利用地理探测器探究其影响机制。[结果](1)研究期内,漓江流域土地利用冲突水平呈缓慢下降趋势,冲突以稳定可控和基本可控为主。基本失控和严重失控占比波动下降,逐步转换为可控级别,冲突强度得到缓解。(2)土地利用冲突具有“中部高四周低”的带状空间格局,且空间异质性显著。冲突高值区集聚在流域各区县主城区和漓江主要水系邻近区域,低值区则分布在四周山区林地地带。(3)DEM、坡度、地形起伏度、NDVI、路网密度是漓江流域土地利用冲突的主要影响因素。[结论]漓江流域土地利用冲突变化明显,失控地区逐渐转换为可控级别,未来漓江流域应持续推进生态保护和修复提升工作,稳定区域土地利用结构,实现土地资源的可持续利用。[Objective]The aims of this study are to identify the spatial conflict of land use in karst area scientifically,to reveal its influencing mechanism,so as to seek the sustainable development path of regional land use.[Methods]Based on landscape ecological risk assessment,a land use conflict measurement model was constructed in the Lijiang River Basin,which was famous for typical karst landforms.The level and spatial-temporal evolution of land use conflict in the Lijiang River Basin from 1990 to 2020 were quantitatively analyzed.The influencing mechanism was further explored by using geographic detectors.[Results](1)During the study period,the level of land use conflicts in the Lijiang River Basin showed a slow decline,and the conflicts were mainly stable and controllable.The proportion of basically out of control and severely out of control fluctuated,gradually changed to controllable level,and the intensity of conflict was eased.(2)Land use conflicts had a banded spatial pattern of‘high level in the middle and low level in the four regions’,and the spatial heterogeneity was significant.The areas with high conflict value were concentrated in the main urban areas of various districts and counties in the basin and the areas adjacent to the main water system of the Li River,while the areas with low conflict value were mainly distributed in the surrounding mountainous and forest areas.(3)The intensity of land use conflict was comprehensively affected by natural environment,social economy and transportation location.DEM,slope,topographic relief,NDVI and road network density were the main influencing factors.[Conclusion]The land use conflicts in the Lijiang River basin are obviously changing,and the out-of-control areas are gradually transformed into controllable areas.In the future,ecological protection and restoration should be continuously promoted in the Lijiang River Basin to stabilize the regional land use structure and realize the sustainable use of land resources.

关 键 词：土地利用冲突 时空演变 空间自相关 驱动机制 漓江流域 

分 类 号：F301.2[经济管理—产业经济]