摘要
作为自然资源的重要组成部分,水是生命之源,土是生存之本。研究水土资源耦合协调对于流域生态环境保护和高质量发展具有重要意义。本文基于2009—2021年的水资源和土地利用数据,构建了耦合协调度和MGWR模型,分析了庄浪河流域水土资源耦合协调度时空演变及影响因素。结果表明:①2009—2021年庄浪河流域水土资源耦合协调度整体呈现下降趋势。水资源与耕地、林地、草地、湿地的耦合度较高;与耕地、草地、湿地的协调度较高。②空间格局上,耦合度与协调度分布趋势大致吻合,高值集中于北部生态保护区,低值集中于中部过渡带。③降水(0.705)、坡度(-0.723)、土地利用类型面积(0.432)与水资源利用效率(0.686)影响最显著,这也造成庄浪河流域耦合协调度空间分异特征显著。未来应加强流域水土资源的合理分配,协调统筹水土资源分配及用量,促进各类自然资源的协调发展。
As a vital component of natural resources,water is essential for sustaining life,while soil forms the foundation of survival.Investigating the coupling and coordination between water and soil resources is crucial for ecological conservation and the sustainable development of river basins.Based on water and land use data from 2009 to 2021,this study constructs coupling coordination degree model and multiscale geographically weighted regression model to examine the spatio-temporal evolution and key influencing factors of water-soil resource coupling in the Zhuanglang River basin.The results show that:①From 2009 to 2021,the overall coupling coordination degree exhibited a downward trend.High coupling degrees were observed between water resources and cultivated land,forest,grassland,and wetland;similarly,high coordination degrees were found between water resources and cultivated land,grassland,and wetland.②Spatially,the distribution patterns of coupling and coordination degrees were largely consistent,with high-value areas primarily located in the northern ecological protection zone and low-value areas concentrated in the central transitional zone.③Precipitation(0.705),slope(-0.723),land use type area(0.432),and water resource utilization efficiency(0.686)were identified as the most significant influencing factors,contributing substantially to the spatial differentiation of the coupling coordination degree.Moving forward,it is imperative to enhance the rational allocation of water and soil resources,strengthen integrated planning and management,and promote the coordinated development of multiple natural resources within the basin.
作者
曾朝蓉
李丑荣
李霞
魏伟
杨世龙
ZENG Zhaorong;LI Chourong;LI Xia;WEI Wei;YANG Shilong(Gansu Geomatic Information Center,Lanzhou 730000,China;Gansu Natural Resources Satellite Application Technology Center,Lanzhou 730000,China;College of Geographical and Environment Science,Northwest Normal University,Lanzhou 730000,China)
出处
《测绘通报》
北大核心
2026年第1期165-171,共7页
Bulletin of Surveying and Mapping
基金
2024年甘肃省自然资源重点人才项目(甘资人函[2024]65号)
国家自然科学基金(42261023)
自然资源调查监测司专题技术研究项目(自然资调查函[2022]38号)。
关键词
庄浪河流域
水土资源
耦合协调度
影响因素
Zhuanglang River basin
land use and water resources
coupling coordination
influencing factors
