陕西水利Issue(6)：1-4,4.
白龙江流域武都区水文特性分析
Hydrological Characteristics Analysis of Wudu District in the Bailong River Basin
摘要
Abstract
Located in the middle reaches of the Bailong River,Wudu District faces significant flood control and disaster prevention responsibilities.In order to better understand the region's hydrological characteristics,prevent geological disasters such as debris flows,support river protection and management,and ensure the rational development and utilization of water resources,this study analyzes long-term data from representative hydrological stations in the area,including precipitation,runoff,and sediment transport rates.The results indicate that:① The interannual variation of precipitation in the region is relatively stable,with a coefficient of variation(Cv)ranging from 0.16 to 0.21.The annual maximum daily precipitation shows relatively larger interannual fluctuations,with Cv values between 0.29 and 0.42.Precipitation is unevenly distributed throughout the year,mostly concentrated from June to September.② Influenced by climate change and human activities,runoff has shown a decreasing trend over the years.The interannual changes can be divided into three stages:increasing before 1993;decreasing from 1994 to 2017;and increasing again from 2018 to the present.The intra-annual distribution of runoff is also uneven,with Gongba River showing the most pronounced pattern.③ Sediment transport has decreased year by year,with significant effects from soil and water conservation efforts such as afforestation.The interannual variation trend of sediment transport is more dramatic than that of runoff.Its distribution within the year is highly uneven-over 81.5%of sediment transport occurs between June and September,while during the non-flood season(January-March and November-December),sediment transport accounts for less than 1.5%of the multi-year average.关键词
白龙江/水文特性/武都区/降水量/径流量Key words
Bailong river/hydrological characteristics/Wudu district/precipitation/runoff分类
地球科学引用本文复制引用
潘昱帆,何炜..白龙江流域武都区水文特性分析[J].陕西水利,2025,(6):1-4,4.基金项目
甘肃省水利科学试验研究及技术推广计划(22GSLK061) （22GSLK061）
甘肃省水利科学试验研究及技术推广项目([2021]53号) （[2021]53号）
2021年甘肃省水利科学试验研究及技术推广项目(甘水建管发[2021]71号) （甘水建管发[2021]71号）
