摘要
建立基于河道边界条件水动力学与水质相耦合模型,结合伊洛河生态系统特点及功能性需水组成,以河流水功能区水质目标作为协控因子,进一步考虑伊洛河河口黄河鲤繁殖期对水质的要求进行自净需水流量计算。结果表明,伊洛河在现状排污与控制排污条件下,黑石关断面达到水功能区水质目标Ⅳ类的自净需水流量分别为14.00 m^3/s和8.00 m^3/s;满足4—6月基本维持鱼类正常繁育水质要求的自净需水流量为13.62 m^3/s,维持鱼类良好繁育状态下水质要求的自净需水流量为35.80 m^3/s。
A coupling model of hydrodynamics and water quality has been established based on river boundary conditions.Combined with the characteristic of the ecosystem and the composition of functional water demand in the Yiluo River,taking the water quality target of the water function zone as the co-control factor,and considering the water quality requirements of the Cyprinus Carpio in the breeding season in the Yiluo River Estuary,the self-purification water demand flow was calculated.The results indicate that under the condition of the current status of pollution discharge into river,and meeting the limit of total emission control,the self-purification water demand flow are 14.0 m^3/s and 8.0 m^3/s,respectively,to reach the water quality target of class IV;The self-purification water demand flow of maintaining the water quality of normal fish breeding from April to June is 13.62 m^3/s,and the self-purification water demand flow of maintaining the water quality of fish in good breeding condition is 35.80 m^3/s.
作者
余真真
闫莉
王瑞玲
马秀梅
张世坤
YU Zhenzhen;YAN Li;WANG Ruiling;MA Xiumei;ZHANG Shikun(Yellow River Water Resources Protection Institute,Zhengzhou 450004,China)
出处
《水资源保护》
CAS
CSCD
北大核心
2020年第5期38-42,共5页
Water Resources Protection
基金
“十三五”国家重点研发计划(2017YFC0404401)
国家自然科学基金(51709126)。
关键词
自净需水量
生态环境
水生生物
黄河鲤
黄河流域
伊洛河
self-purification water demand flow
ecological environment
aquatic life
Cyrinus carpio
Yellow River Basin
Yiluo River
