南流江博白水文站近60年来径流量变化分析  

Analysis of runoff change in the past 60 years for Bobai Hydrological Station on Nanliu River

作　　者：叶嘉 YE Jia(Yulin Hydrology Center,Yulin 537000,China)

机构地区：[1]玉林水文中心,广西玉林537000

出　　处：《广西水利水电》2024年第5期39-43,共5页Guangxi Water Resources & Hydropower Engineering

摘　　要：南流江是广西独流入海的第一大河,是近年来广西生态保护与环境治理的重点流域之一。本研究基于南流江中上游代表站博白水文站近60年来径流观测资料,对南流江中上游径流量变化进行分析。采用回归分析法、滑动平均法、M-K分析法分析南流江中上游近60年来径流量变化趋势,研究结果表明:南流江中上游径流量年际变化差异大,年内分配不均,主要集中在汛期。近60年来南流江中上游年径流量总体呈轻微的下降趋势,但趋势不够显著。径流量变化与降雨量关系密切。南流江中上游径流量变化主要受气候变化影响,还受水利工程建设、河道取水等人类活动影响。Nanliu River is the largest river in Guangxi that flows into the sea alone.In recent years,it has become one of the key watersheds for ecological protection and environmental governance projects in Guangxi.Based on the recent 60 years of runoff measuring data of Bobai Hydrological Station,the representative station in the middle and upper reaches of Nanliu River,the author studied the runoff change trend by regression analysis method,moving av⁃erage method and M-K analysis method.The results of study demonstrate the inter-annual change of runoff in the upper and middle reaches of Nanliu River varies greatly,the runoff distributed unevenly within a year and mostly concentrated in the flood season.The annual runoff in the middle and upper reaches of Nanliu River has a slight,not significant decreasing trend in the recent 60 years.The runoff change is closely related to precipitation.The run⁃off change in the middle and upper reaches of Nanliu River is influenced mostly by meteorological change,and is af⁃fected by construction of hydraulic projects and human activities such as water taking from the river.

关 键 词：博白水文站 径流量 变化 分析 南流江 

分 类 号：TV121.4[水利工程—水文学及水资源]