华北水利水电大学学报（自然科学版）2025，Vol.46Issue(6)：44-55,12.DOI:10.19760/j.ncwu.zk.2025088
黄河水源涵养区水源涵养量对土地利用变化的敏感性分析
Sensitivity Analysis of Water Conservation Amount to Land Use Changes in Yellow River Water Source Conservation Area
摘要
Abstract
[Objective]Revealing the spatiotemporal distribution patterns of water conservation amount in the Yellow River water source conservation area and exploring its sensitivity to land use changes aim to provide references for water resource management,land use planning,and ecological restoration in the Yellow River Basin.[Methods]This study,from the per-spective of land use type change,employed the WEP-L model and a calculation method based on the watershed water cycle perspective to estimate the water conservation amount in the Yellow River water source conservation area and investigated its sensitivity to different land use types.[Results](1)The multi-year average water conservation amount was 18.432 billion m3,equivalent to 61 mm per unit area,of which 11.437 billion m3 during the flood period,3.782 billion m3 during the tran-sitional period,and 3.213 billion m3 during the dry period.(2)The distribution showed higher values in the east and lower in the west.The water conservation capacity showed a slight increasing trend of 0.037 billion m3 per year,with abrupt chan-ges in 1964 and 2002.The sequence displayed two significant cycles of 56 years and 35 years.(3)The sensitivity coeffi-cients were 0.594 for forest,0.341 for cropland,0.301 for water bodies,0.232 for grassland,and 0.063 for other areas.[Conclusion]The WEP-L model and the water conservation calculation method based on the watershed water cycle perspec-tive can be effectively applied to assess the water conservation function in the Yellow River source area.The water conserva-tion function in the study area is significantly influenced by land use changes,with forested land being the key category regu-lating regional water conservation capacity.关键词
黄河水源涵养区/WEP-L模型/水源涵养量/土地利用变化/敏感分析Key words
Yellow River water source conservation area/WEP-L model/water conservation amount/land use change/sensi-tivity analysis分类
建筑与水利引用本文复制引用
毛海睿,杜军凯,谢敏,张守平,仇亚琴,谈幸燕,郝春沣,石洪源..黄河水源涵养区水源涵养量对土地利用变化的敏感性分析[J].华北水利水电大学学报（自然科学版）,2025,46(6):44-55,12.基金项目
流域水循环模拟与调控国家重点实验室课题(SKL2024YJZD02) （SKL2024YJZD02）
云南省重点研发计划项目(202303AC100020) （202303AC100020）
国家重点研发计划项目(2023YFF1304202) （2023YFF1304202）
重庆市水利科技项目(CQSLK-2022005). （CQSLK-2022005）
