江西省抚河廖家湾河段冲淤变化特征及其驱动因素分析  

Analysis of the characteristics and driving factors of erosion and sedimentation changes in the Liaojiawan Section of the Fuhe River in Jiangxi Province

作　　者：王元 何力 雷建平 刘海凤 WANG Yuan;HE Li;LEI Jianping;LIU Haifeng(Jiangxi Water Conservancy Vocational College,Nanchang 330013;Fuhe Rive Hydrology and Water Resources Monitoring Center,Fuzhou 344000)

机构地区：[1]江西水利职业学院,南昌330013 [2]抚河水文水资源监测中心,抚州344000

出　　处：《中国防汛抗旱》2024年第12期68-72,共5页China Flood & Drought Management

基　　金：江西省水利厅科技项目(202324YBKT12)。

摘　　要：廖家湾河段是江西省抚河中游重要控制河段,近年来受人类活动影响显著,冲淤变化剧烈,研究其变化特征及驱动因素对涉水工程安全、洪涝灾害防治等具有重要意义。通过分析廖家湾河段1965—2022年大断面数据和1956—2022年水文数据,采用定量和定性相结合的方法,分析确定河段冲淤变化特征和驱动因素。结果表明:①廖家湾河段冲淤具有明显的时段特征,1965—2004年河道总体稳定,2005—2018年急剧冲刷或淤积,2019—2022年河道趋于稳定;②河道采砂、上下游水利工程影响等人类活动是河道冲淤的主要驱动因素,径流变化影响相对较小。The Liaojiawan section is an important control section of the middle reaches of the Fuhe River in Jiangxi province.In recent years,it has been significantly affected by human activities and has undergone drastic changes in erosion and sedimentation.Studying its characteristics and driving factors is of great significance for the safety of water projects and the prevention and control of flood disasters.This article analyzes the large cross-section data and hydrological data from 1956 to 2022 of the Liaojiawan section,and uses a combination of quantitative and qualitative methods to analyze and determine the characteristics and driving factors of erosion and sedimentation changes in the reach.The results show that:①the erosion and sedimentation of the Liaojiawan section have obvious temporal characteristics,with the overall stability of the river channel from 1965 to 2004,rapid erosion or sedimentation from 2005 to 2018,and the river channel tending to stabilize from 2019 to 2022;②Human activities such as sand mining in river channels and the impact of upstream and downstream water projects are the main driving factors for river erosion and sedimentation,while the impact of runoff changes is relatively small.

关 键 词：抚河廖家湾河段 河道冲淤 驱动因素 非参数检验 趋势分析 江西省 

分 类 号：TV147[水利工程—水力学及河流动力学]