长江科学院院报2025，Vol.42Issue(6)：29-35,7.DOI:10.11988/ckyyb.20240161
基于水质水量耦合模型的南涑河水资源调度模拟分析
Simulation Analysis of Water Resource Scheduling in Nansu River Based on Coupled Water Quality-Quantity Model
摘要
Abstract
[Objectives]With the socioeconomic development,conflicts among the population,water resources,and the environment have become increasingly prominent.Conducting research on water quality and quantity in riv-ers that flow through urban areas and serve functions such as water supply and irrigation,and implementing rational scheduling,is of significance for ensuring a healthy aquatic ecosystem and enhancing the well-being of local resi-dents.[Methods]The Nansu River Basin was selected as the research area.A one-dimensional hydrodynamic-wa-ter environment coupled MIKE 11 model was constructed,utilizing chemical oxygen demand(COD)and ammonia nitrogen(NH3-N)as key indicators.The external boundary conditions for the hydrodynamic module were defined by upstream inflow and downstream outflow,with observed hydrological data serving as model inputs.For the water environment module,the boundary conditions were established based on the water environmental characteristics at the river boundaries and pollutant discharge data entering the river.[Results]The water environmental capacity(WEC)refers to the maximum permissible pollutant load that a water body can assimilate per unit time under spec-ified water domain boundaries,hydrological conditions,regulated sewage discharge modes,and predefined water quality targets.The monthly average WEC for COD and NH3-N showed a consistent pattern,with the highest capac-ity observed during the high-flow season,followed by the normal-flow season,and the lowest during the low-flow season.Water quality in the Nansu River deteriorated rapidly during the early flood season.To improve water quali-ty,seven scheduling schemes were proposed by addressing two key aspects:controlling pollutant inflow from tribu-taries and increasing mainstream flow.[Conclusions]Improving water quality requires intervention in two primary areas:controlling pollutant inflow from tributaries and increasing the flow of the main stream.Based on the actual conditions of the basin and a comparison of seven regulation schemes,the Oupugou tributary is identified as the pri-mary source of pollution affecting the mainstream.While both approaches-pollutant inflow control and mainstream flow increase-can achieve water quality improvement,the effect of pollution control is more significant than that of flow regulation.According to the comparative analysis of the scheduling schemes,the optimal scheme for improving water quality is to close the sluice gates of the Oupugou tributary to prevent pollutant inflow,and to moderately reg-ulate water flow to further improve water quality.关键词
水资源调度/水质水量耦合模型/MIKE11/水环境容量/生态调度/南涑河Key words
water resources scheduling/water quality and quantity coupling model/MIKE 11/water environmental capacity/ecological scheduling/Nansu River分类
建筑与水利引用本文复制引用
侯祥东,赵香玲..基于水质水量耦合模型的南涑河水资源调度模拟分析[J].长江科学院院报,2025,42(6):29-35,7.基金项目
山东省流域中心重点科研课题(PCTXPQ-KY202002) （PCTXPQ-KY202002）
