水土保持研究2025，Vol.32Issue(6)：192-199,8.DOI:10.13869/j.cnki.rswc.2025.06.040
1970-2020年皇甫川流域水源涵养量时空变化及驱动因子分析
Analysis of spatiotemporal variations and driving factors of water conservation in Huangfuchuan River Basin from 1970 to 2020
摘要
Abstract
[Objective]Water conservation capacity serves as the most important characterization indicator in the regulation services of Gross Ecosystem Product(GEP)accounting.A scientific analysis of the variation patterns and influencing factors of water conservation can provide a basis for comprehensive ecosystem management and sustainable water resource management in river basins.[Methods]The SWAT model and an improved water balance equation were used to calculate the water conservation capacity in the Huangfuchuan River Basin over the past 50 years.The spatiotemporal variation of water conservation from 1970 to 2020 was analyzed,and the major influencing factors of water conservation capacity and its spatiotemporal variation were examined using the geodetector method.[Results](1)From 1970 to 2020,the water conservation capacity in the Huangfuchuan River Basin showed an overall increasing trend,with an annual average water conservation capacity of 174.34 mm,a water conservation index of 0.45,and an annual average growth rate of 0.17％.(2)The spatial distribution of water conservation in the Huangfuchuan River Basin exhibited a pattern of lower values in the north and higher values in the south,as well as lower values in the west and higher values in the east.Forests demonstrated the strongest water conservation capacity,making a significant contribution to the total water conservation of the Huangfuchuan River Basin.The spatial distribution of water conservation capacity showed a high consistency with precipitation.(3)The factors influencing water conservation capacity,ranked from the most to the least influential,were precipitation,temperature,elevation,potential evapotranspiration,soil type,land use type,and slope gradient.Factor interactions,especially between precipitation,temperature,and soil type,were more prominent.The climatic effect dominated the spatiotemporal pattern of water conservation in the Huangfuchuan River Basin.[Conclusion]The water conservation capacity in the Huangfuchuan River Basin showed an annual growth rate of 0.17％from 1970 to 2020,exhibiting a spatial pattern of lower values in the north and higher values in the south,as well as lower values in the west and higher values in the east.Forest demonstrated superior water conservation contributions,while climatic factors,particularly precipitation-temperature-soil interactions,dominated the spatiotemporal dynamics of water conservation.关键词
水源涵养/SWAT模型/时空演变/影响因素/皇甫川流域Key words
water conservation/SWAT model/spatiotemporal evolution/influencing factors/Huangfuchuan River Basin分类
建筑与水利引用本文复制引用
姚志宏,杨莹,李云,张德全,周文玥,孙彭成..1970-2020年皇甫川流域水源涵养量时空变化及驱动因子分析[J].水土保持研究,2025,32(6):192-199,8.基金项目
国家自然科学基金项目"水土保持措施配置对流域水沙过程的影响和作用"(U2243210,42207401)"黄土丘陵区土壤有机碳迁移对植被恢复的响应机理与模拟"(U2243210,42207401) （U2243210,42207401）
河南省科技攻关项目"黄土高原流域次暴雨土壤侵蚀与泥沙沉积过程模型研发"(242102320252) （242102320252）
中央级公益性科研院所基本科研业务费项目"水土保持生态产品价值核算技术及实现机制研究"(HKY-JBYW-2025-12) （HKY-JBYW-2025-12）
鄂尔多斯重点科技项目"重点水土流失区(西黑岱流域)生态系统水土保持综合整治技术集成效益评估" （西黑岱流域）
