基于EFDC模型的南方某水库富营养化三维数值模拟  

3D Numerical Simulation for Eutrophication in a Reservoir in Southern China Based on EFDC Model

作　　者：孙滔滔 赵鑫 朱婷婷 彭盛华 SUN Taotao;ZHAO Xin;ZHU Tingting;PENG Shenghua(State Key Laboratory for Environmental Protection and Drinking Water Source Management and Technology,Shenzhen Research Academy of Environmental Sciences,Shenzhen 518000,China)

机构地区：[1]深圳市环境科学研究院国家环境保护饮用水水源地管理技术重点实验室

出　　处：《人民珠江》2020年第3期30-36,共7页Pearl River

基　　金：深圳市科技计划项目(基础研究/自由探索)(JCYJ20170307105356548)

摘　　要：针对目前南方某水库存在“水华”风险问题,利用2010年实测水文、水质数据,基于EFDC富营养化模块,构建了南方某水库三维富营养化模型,并利用2011—2012年和2016年实测数据进行了模型参数率定和验证。结果显示水温和总磷模拟效果最好,模拟值与实测值高度吻合,年均总误差分别为0.5%和-1.4%;COD次之,模拟值与实测值基本吻合,年均总误差为-4.4%;总氮和叶绿素模拟值与实测值有一定偏差,但仍能很好模拟变化趋势,氨氮和溶解氧稍差。该模型可为该水库后续开展水质和水生态预测预警提供技术支持。Aiming at the algae bloom risk in a reservoir in Southern China,this paper constructs a 3D eutrophication model based on EFDC eutrophication module and measured hydrologic and water quality data of 2010,and carries out the model parameter calibration and validationby the measured data of 2011—2012 and 2016.The results show that:the simulation results of the water temperature and total phosphorus are good,and the simulated values are highly consistent with the measured values,with the annual average error of 0.5%and-1.4%respectively;that of COD takes second place,with the annual average error of-4.4%;there are some deviations between the simulated and measured values of total nitrogen and chlorophyll,but the variation trend can be simulated well;there are large errors in the simulation for ammonia nitrogen and dissolved oxygen.This model can provide technical support for the forecasting and early warning of water quality of the reservoir.

关 键 词：水库 富营养化 EFDC 数值模拟 

分 类 号：X143[环境科学与工程—环境科学]