辨析祖厉河季节性与常年性河流问题  

Analysis of the Issues Between Seasonal and Perennial Rivers in the Zuli River

作　　者：梁恒德 LIANG Hengde(Gansu Dingxi Hydrological and Water Resources Survey Center,Dingxi 743000,China)

机构地区：[1]甘肃省定西水文水资源勘测中心,甘肃定西743000

出　　处：《水资源开发与管理》2024年第11期39-43,58,共6页Water Resources Development and Management

基　　金：甘肃省水利科学实验研究项目(22GSLK030、22GSLK059、24GSLK027)。

摘　　要：本文以半干旱区祖厉河为研究对象,探究人类活动对河流的影响程度,明确祖厉河季节性与常年性河流问题,为生态流量确定、河流健康评价、助力河流复苏提供依据。结果表明,祖厉河径流量年际间呈显著衰减趋势,年内分配不均;干流及关川河上游存在不同程度的断流现象,但受沿途灌溉回归水和城市排放尾水的影响,祖厉河中下游基流增大;在天然状态下,祖厉河1974-2022年有87个月出现断流,占总月份数的14.8%,为季节性河流。This paper takes the Zuli River in the semi-arid region as a study subject to explore the extent of human impact on the river,clarifying the issues between seasonal and perennial rivers in the Zuli River.The study aims to provide a technical basis for determining ecological flow,assessing river health,and supporting river restoration.The results show that the annual runoff of the Zuli River exhibits a significant decreasing trend with uneven distribution throughout the year.Different degrees of flow interruption are observed in the main stream and the upper reaches of the Guanchuan River.However,due to the influence of irrigation return flow and urban wastewater discharge along the route,the base flow in the middle and lower reaches of the Zuli River has increased.Under natural conditions,the Zuli River experienced flow interruptions in 87 months between 1974 and 2022,accounting for 14.8%of the total months,classifying it as a seasonal river.

关 键 词：祖厉河 季节性河流 生态流量确定 人类影响程度 

分 类 号：TV211.2[水利工程—水文学及水资源]