干旱区地理2025，Vol.48Issue(9)：1531-1540,10.DOI:10.12118/j.issn.1000-6060.2024.611
宁夏小流域尺度水土资源耦合特征及影响因素
Coupling characteristics and influencing factors of water and soil resources at the small watershed scale in Ningxia
摘要
Abstract
The coupling coordination of water and soil resources is of great significance to the sustainable devel-opment of ecosystem services in small watersheds.Taking small watersheds of Ningxia,China as the research unit,this study employs the coupling coordination degree model to measure the coupling coordination degree of water-soil resources in the study area.Additionally,the multi-scale geographically weighted regression model is used to explore the influencing factors and spatial heterogeneity of the coupling coordination degree of water-soil resources.The results indicate that:(1)From 2005 to 2020,the coupling coordination degree of water-soil re-sources in small watersheds of Ningxia increased from 0.37 to 0.43,demonstrating a transition from imbalance to coordination in the regional water and soil resource matching degree.(2)The coupling coordination degree of wa-ter-soil resources in small watersheds of Ningxia exhibits a spatial pattern of being higher in the south and lower in the north.Furthermore,from 2000 to 2020,areas of water-soil resources having a coupling coordination degree of high value expanded outward in the southern small watersheds.(3)The proportion of terraced field area,coun-ty-level accessibility,and annual average precipitation exert a significant positive impact on the coupling coordi-nation degree of water-soil resources,whereas annual average temperature,vegetation coverage,and erosion in-tensity have a significant negative impact.The proportion of terraced field area and annual average temperature exert a greater influence on the coupling coordination degree of water-soil resources in the southern small water-sheds of Ningxia compared to northern ones,while county-level accessibility and annual average precipitation demonstrate a more significant impact on the same coupling coordination degree in the northern small watersheds of Ningxia than in the southern counterparts.The findings of this study provide a scientific reference for the plan-ning of soil and water conservation measures at the small watershed scale in Ningxia.关键词
水土保持/水土资源耦合/耦合协调度/空间相关性/小流域/宁夏Key words
soil and water conservation/soil and water resources coupling/coupling coordination degree/spa-tial relevance/small watersheds/Ningxia引用本文复制引用
徐建斌,曹小曙..宁夏小流域尺度水土资源耦合特征及影响因素[J].干旱区地理,2025,48(9):1531-1540,10.基金项目
国家自然科学基金(42201265) （42201265）
教育部人文社会科学研究项目(22YJCZH200) （22YJCZH200）
山西省基础研究计划(20210302123305)资助 （20210302123305）
