基于MIKE21的南四湖上级湖水量水质响应模拟研究  

Research on the Water Quality and Quantity Response Based on MIKE 21 in the Upper-reach Lakes of Nansi Lake

作　　者：宫雪亮 孙蓉[1] 芦昌兴 孙秀玲[1] GONG Xue-liang;SUN Rong;LU Chang-xing;SUN Xiu-ling(School of Civil Engineering,S handong University,Jinan 250061,Shandong Province,China)

机构地区：[1]山东大学土建与水利学院,山东济南250061

出　　处：《中国农村水利水电》2019年第1期70-76,82,共8页China Rural Water and Hydropower

基　　金：山东省省级水利科研与技术推广项目(SDSLKY201406)

摘　　要：南四湖是南水北调工程中十分重要的调蓄湖泊,对于南四湖水量水质之间关系的研究具有非常重要的意义。在总结分析前人对南四湖上级湖水量水质研究的基础上,由统计数据资料,运用MIKE21模型,模型参数主要选取湖内糙率、污染物扩散系数以及污染物降解系数,模型所选取的污染物指标为COD和TP两种。对模型参数进行验证后,模型具有一定的代表性和准确性。将模型应用于模拟方案进行模拟分析,模拟分析了多情景下南四湖上级湖内水质变化过程,并根据结果分析得到南四湖上级湖内水量水质响应关系,为南四湖水质改善提供理论依据。Nansi Lake is one of the most important storing lakes in South-to-North Water Diversion Project,so it is very significant to further probe into the relationships between water quantity and water quality in Nansi Lake. Based on the summaries and analysis from the predecessors around a large batch of studies on water quantity and quality of the upstream section of Nansi Lake,with combination of statistical data and information and MIKE21 model,this paper selects internal roughness,pollutant diffusion coefficient and pollutant degradation coefficient as the main parameters while taking COD and TP as pollutant indexes selected in the above model. After the careful verifications of the above-mentioned model parameters,it better certifies that the entire model is certain representativeness and accuracy. By applying the model into simulation schemes for making further simulation analysis,it made a series of deep simulation analysis around water-quality changing process in the upstream section of Nansi Lake in multiple scenarios. And depending on the achieved results,it further analyzed and got the response relationship between water quantity and water quality in the said upstream section. Provide theoretical basis for the improvement of water quality of Nansi Lake.

关 键 词：南四湖上级湖 MIKE21模型 水量水质响应 

分 类 号：TV213.3[水利工程—水文学及水资源] TU991.21[建筑科学—市政工程]