漓江生态及航运补水水流演进规律精细化解析  

Detailed analysis of the evolution characteristics of ecological and navigational water supplementation in the Lijiang River

作　　者：聂远雄 董吴欣 王绍旭 胡腾飞 阳海涛 吴树诚 NIE Yuanxiong;DONG Wuxin;WANG Shaoxu;HU Tengfei;YANG Haitao;WU Shucheng(Guilin Water and Power Design Institute,Guilin 541001,China;Electric Power Research Institute of State Grid Jiangxi Electric Power Co.,Ltd.,Nanchang 330096,China;The National Key Laboratory of Water Disaster Prevention,Nanjing Hydraulic Research Institute,Nanjing 210029,China;Guilin Municipal Reservoir Management Office,Guilin 541001,China;Guilin Hydrological Center,Guilin 541001,China)

机构地区：[1]桂林市水利电力勘测设计研究院,广西桂林541001 [2]国网江西省电力有限公司电力科学研究院,江西南昌330096 [3]南京水利科学研究院水灾害防御全国重点实验室,江苏南京210029 [4]桂林市市属水库管理处,广西桂林541001 [5]广西壮族自治区桂林水文中心,广西桂林541001

出　　处：《水利水运工程学报》2025年第1期58-67,共10页Hydro-Science and Engineering

基　　金：国家重点研发计划资助项目(2021YFC3200301);广西重点研发计划资助项目(桂科AB22080093);广东省水利科技创新项目(2021-08);国家自然科学基金资助项目(51909168)。

摘　　要：为助力桂林市打造世界级旅游城市,缓解近年来漓江生态及航运用水与枯水期水资源短缺的矛盾,深度挖掘2017-2021年30场水库群重大补水记录,精细解析了漓江河道补水水流演进规律,以期支撑漓江上游水库群开展高效精准补水。以漓江上游水库群坝下至桂林水文站河道为研究对象,采用河道分段模拟、数据分时解析的总体思路,基于数据挖掘、函数构造、曲线拟合等方法,优化确定了各河段不同量级水流演进时间表征函数。结果表明:(1)鉴于水流演进动力机制差异和点据分布特征,上游山区性河道水流演进用时适合采用线性函数表征,区域中下游河段适合采用非线性函数;(2)水流演进函数率定精度理想,演进时间的相对误差基本小于10%、均方根误差基本小于1.7 h。对漓江补水水流演进规律的精细解析结果,可用于历史补水任务复盘及新补水计划拟定,以有效提升水库补水效率。To address the conflict between ecological and navigational water demands in the Lijiang River and mitigate water scarcity during dry seasons,this study conducts a detailed analysis of flow evolution characteristics in the river channel.The aim is to facilitate efficient and precise water supplementation from upstream reservoirs.Focusing on the segment from upstream reservoirs to the Guilin hydrological station,the research employs segment-by-segment simulation and time-phased data analysis.Utilizing methods such as data mining,function construction,and curve fitting,the study optimizes the characterization of flow evolution over time across different flow magnitudes in each river segment.The findings reveal that:1)Linear functions suitably describe flow evolution in upstream mountainous river channels due to their distinct mechanisms,while nonlinear functions are preferable for middle and lower reaches;2)The developed functions exhibit high calibration accuracy,with relative errors generally below 10%and RMSE typically less than 1.7 h.The analytical outcomes are applied to assess past water supplementation tasks and plan new strategies,demonstrating their efficacy in enhancing reservoir water supplementation efficiency.

关 键 词：漓江 生态补水 旅游航运 水流演进 数据挖掘 

分 类 号：TV213[水利工程—水文学及水资源]