水资源与水工程学报2024，Vol.35Issue(2)：83-90,8.DOI:10.11705/j.issn.1672-643X.2024.02.09
水量调度对平原河网能量影响分析
Influence of anthropogenic water diversion on river energy in plain river network
摘要
Abstract
The poor hydrodynamic conditions in the plain river network have resulted in prominent water quality issues.To improve the water environment in the plain river network area,we selected hydrological and water quality monitoring data of flood and dryseasons of 2018 from 19 cross-sections in the Binhu Riv-er network in Wuxi,Jiangsu Province.We employed the MIKE21 Binhu River network hydrodynamic-water quality model and a Python-based energy mathematical model to investigate energy dissipation pat-terns,the relationship between energy and water quality,and the optimal water diversion flow range.The results showed a significant negative correlation between water quality concentration and river energy.In-creasing the water diversion within certain limits led to a rise in total river energy;however,upon reac-hing a threshold,further increases in water diversion caused a gradual decrease in total river energy.By optimizing the water diversion schemes at the energy target level,we effectively harmonized the diverse factors in the water diversion process.This optimization allowed us to determine the daily optimal water diversion flow range and the optimal total energy range for the river network.These findings provide a ba-sis for optimizing water quantity control to ensure the hydrodynamic and water environmental conditions of the plain river network.关键词
河流能量/水量调度/二维河网模型/最佳调水流量区间/时空分布/平原河网Key words
river energy/water diversion/two-dimensional river network model/optimal water diversion flow range/temporal and spatial distribution/plain river network分类
建筑与水利引用本文复制引用
田雪琪,王华,曾一川,陈经纬,李家乐..水量调度对平原河网能量影响分析[J].水资源与水工程学报,2024,35(2):83-90,8.基金项目
国家自然科学基金项目(52179064) （52179064）
