摘要
为了定量评估永安溪下岸水库对下游水文情势的影响,利用永安溪柏枝岙水文站1980—2020年的径流序列,采用不均匀系数、完全调节系数和集中度分析水库运行前后永安溪径流年内分配变化,并利用RVA法评估水文整体改变度。结果表明:下岸水库的蓄丰补枯作用明显,径流年内分配趋于均匀化;在取得防洪效益的同时,水库的运行也对永安溪水文情势产生了中度改变,改变度达42.82%,对流域内水生生态系统的健康形成潜在影响。
In order to quantitatively evaluate the influence of Xia'an Reservoir on the downstream hydrological regime,the runoff series of Baizhi'ao hydrological station in the Yong'an River from 1980 to 2020 were used to analyze the annual distribution change of runoff of the Yong'an River before and after the operation of the reservoir by using the nonuniformity coefficient,complete regulation coefficient and concentration degree,and the RVA method was used to evaluate the overall change degree of hydrology.The results show that the Xia'an Reservoir has an obvious effect of storing abundant water and replenishing dry water,and the annual distribution of runoff tends to be uniform.While presenting flood control benefits,the operation of the reservoir also has a moderate change in the hydrological regime of the Yong'an River,with a change degree of 42.82%,which has a potential impact on the health of the aquatic ecosystem in the basin.
作者
沈凯琦
赵超
张翔宇
黄志强
SHEN Kaiqi;ZHAO Chao;ZHANG Xiangyu;HUANG Zhiqiang(School of Environmental Science and Engineering,Xiamen University of Technology,Xiamen 361024,China;The Key Laboratory of Water Resources Utilization and Protection of Xiamen,Xiamen 361024,China;Taizhou Huangyan District Yongning River Affairs Center,Taizhou 318020,China)
出处
《水资源保护》
EI
CAS
CSCD
北大核心
2022年第5期174-180,共7页
Water Resources Protection
基金
福建省自然科学基金(2022J011232)
厦门市科技计划(3502Z20203063)
厦门理工学院科研攀登计划(XPDKT19028)
厦门理工学院研究生科技创新计划(YKJCX2020092)。
关键词
RVA法
水文情势
永安溪
下岸水库
RVA method
hydrological regime
Yong'an River
Xia'an Reservoir
