Variation of Annual Inflow and Influencing Factors in Zhangwu Reservoir
CHEN Xinhua
BI Jinghao
Abstract：For the Sustainable use of water resources and reasonable operation of reservoir,the inflow variation characteristics and influencing factors,which include inflow inter-annual variation characteristics,changing trend,precipitation change,and the impact of human activities,were analyzed based on historical records from Zhangwu Reservoir During 1973-2022.Linear trend analysis,①Moving-average model,Cumulative anomaly method,R/S analysis,and double mass curve for annual rainfall stream flow were used comprehensively in the study.The results showed that the multi-year change of inflow of Zhangwu Reservoir had a distinctive decreased tendency at 3.1 million m3 per year during 1973-2022.②The Hurst index was 0.7892 for Zhangwu Reservoir which indicates that the decreasing trends would continue in the future.③Human activities were the main reason of inflow descending in Zhangwu Reservoir which are high to 94.27%since 2006.
Keywords：Zhangwu Reservoirinflow variationrainflowhuman activity
Publication Date：2025-02-27
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 73-77 )