水资源与水工程学报2025，Vol.36Issue(5)：65-73,83,10.DOI:10.11705/j.issn.1672-643X.2025.05.08
左江流域水文水资源演变规律分析
Evolutionary characteristics of hydrology and water resources in the Zuo River Basin
摘要
Abstract
The Zuo River originates in northern Vietnam and subsequently flows into China,making it one of the few transboundary rivers that enter Chinese territory.With the ongoing implementation of the"Two Corridors and One Economic Circle"initiative,the Zuo River is poised to serve as a critical con-duit for cross-border resource cooperation between China and Vietnam.Nevertheless,foundational re-search on hydrology and water resources at the full-basin scale remains insufficient.Based on meteoro-logical,hydrological,and water resources data from both China and Vietnam,this study employs the Mann-Kendall(M-K)trend test,wavelet analysis,and the water stress indicator method to investi-gate the temporal and spatial characteristics of meteorological,hydrological,and water resources variabili-ty across the entire Zuo River Basin.The results reveal that precipitation exhibited a distinct spatial dis-tribution pattern,characterized by higher rainfall in the upper reaches and a decreasing gradient in pre-cipitation from south to north.Both precipitation and runoff demonstrated significant intra-annual uneven-ness and substantial inter-annual variability.From 1965 to 2020,annual precipitation and runoff showed an insignificant decreasing trend,whereas both annual and seasonal air temperature exhibited a signifi-cant upward trend.The dominant periodicities for temperature,precipitation,and runoff were identified as 8,21,and 9 years,respectively.The total volume of renewable water resources in the basin was esti-mated to be 21.79 billion m3,with an overall water stress index of 0.15,indicating moderate water stress.Due to pronounced inter-annual and intra-annual variability in runoff,water stress was prominent during dry years and dry seasons,which will continue to increase in the future.关键词
水文水资源演变/M-K趋势检验/小波分析/水压力指数/跨境流域/左江流域Key words
evolution of hydrology and water resources/Mann-Kendall trend test/wavelet analysis/water stress indicator/transboundary basin/the Zuo River Basin分类
水利科学引用本文复制引用
林毅,罗贤,黄耿,钟毓彤..左江流域水文水资源演变规律分析[J].水资源与水工程学报,2025,36(5):65-73,83,10.基金项目
国家自然科学基金重点项目(42067033) （42067033）
