摘要
模拟分析不同调水引流方案对南水北调东线前沿受水区水质的影响,是保障其水质安全的重要依据。以南水北调东线前沿受水区-里下河南片区为研究区,建立水量水质耦合模型,依江都枢纽、高港枢纽引水现状设定江都枢纽补水、高港枢纽补水以及江都枢纽-高港枢纽联合补水三种引水方案,模拟分析不同补水方案下研究区水质改善效果。结果表明:三种调水引流方案均能有效降低研究区河道污染物浓度,且水质改善效果随引水量增加而提升,对于污染严重河道水质虽有改善但效果相对较差;在江都枢纽引水91.8m^(3)/s,高港枢纽引水122.8~142.8m^(3)/s的方案下,总体水质改善效果最佳。研究成果可为里下河腹部南片地区的水环境综合治理和南水北调东线受水区水质安全保障提供决策参考。
It is an important basis for ensuring the safety of water quality in the frontier of the eastern route of the South-to-North Water Transfer that simulation and analysis of the impact of different water diversion schemes.This paper took Li-Xia-He region which is on the frontier of the eastern route of the South-to-North Water Transfer Project as the research area to establish a water quantity and water quality coupling model.According to the current status of water diversion from the Jiangdu and Gaogang junctions,three water supplement schemes contained water supplement from the Jiangdu junction,Gaogang junction and Jiangdu-Gaogang joint junction were set to simulate and analyze the water quality improvement effect of the study area under different water supplement schemes.The results showed:the three water schemes can effectively reduce the concentration of pollutants in the rivers in the study area,and the water quality improvement effect increases with the increase in water diversion quantity,and the effect of water quality improvement is relatively poor in the heavily polluted rivers although their water quality has improved;when diverting water of 91.8 m^(3)/s from Jiangdu junction and 122.8-142.8 m^(3)/s from Gaogang junction,the overall water quality improvement effect is the best.The research results can provide decision-making reference for the comprehensive management of the water environment in the southern part of the Li-Xia-He region and the water quality safety guarantee of the eastern route of the South-to-North Water Transfer Project.
作者
朱玉婷
陈启慧
张玉田
李琼芳
陈静
宋耘
杨雪芮
ZHU Yuting;CHEN Qihui;ZHANG Yutian;LI Qiongfang;CHEN Jing;SONG Yun;YANG Xuerui(College of Hydrology and Water Resources,Hohai University,Nangjing 210098,China;Taizhou Branch of Jiangsu Hydrological and Water Resources Investigation Bureau,Taizhou 225300,China;Jiangsu Province Hydrology and Water Resources Investigation Bureau,Nangjing 210029,China;Shanghai Jing'an District Discipline Inspection Committee of the Communist Party of China,Shanghai 200040,China)
出处
《水文》
CSCD
北大核心
2021年第3期25-31,共7页
Journal of China Hydrology
基金
国家自然科学基金资助项目(51879069)
江苏省水利科技项目(2018001,2018002)。
关键词
里下河地区
MIKE11
补水方案
水质改善
Li-Xia-He region
MIKE11
water supplement scheme
water quality improvement
