摘要
构建一维二维水环境模型进行水质模拟是湖泊型流域开展陆源污染与断面水质响应关系研究的重要手段。针对现有一维二维水环境耦合模型建模过程中数据格式多样化、数据尺度难匹配、预处理过程复杂、参数众多难率定、运算时间长且无法快速响应超标断面水质调控等问题,设计并开发了流域一维二维水环境耦合模型系统,面向水环境管理业务需求,构建湖泊型流域水环境模型并模拟水环境变化过程,支持水质超标断面污染溯源、污染治理措施效果评价、污染防治与决策等业务开展,对支撑湖泊型流域水环境精细化管理具有广泛的应用价值。该模型系统以陆源污染负荷入河量作为河流污染边界条件,建立河流一维稳态水环境模拟模型,再以入湖河流作为边界条件,在二维正交网格基础上建立湖泊二维稳态水环境模型,从而建立陆源污染源排放与全流域水体断面水质响应关系。在南四湖流域的应用表明,该模型系统具有较高的水质模拟精度,其模拟速率和分析展示功能满足水环境精细化管理过程中的研究需求和业务需求,可为水环境管理决策提供科学依据。
Constructing a one-dimensional two-dimensional water environment coupling model for water quality simu-lation is an important means to study the relationship between land-based pollution and water quality response in lake ba-sin.Aiming at the problems of the existing coupling model,such as diverse data formats,difficult scale matching,com-plex preprocessing,numerous parameters,long running time,and inability to respond to regulation and control quickly,this study designed and developed a one-dimensional and two-dimensional coupled water environment model system for watershed to carry out fine water environment management.This model system can easily simulate the water environ-ment process of lake basin,carry out pollution identification,simulate water quality improvement effect of pollution re-duction measures.In the model system,a one-dimensional steady-state water environment simulation model was estab-lished based on the amount of land-based pollution load entering the river.The two-dimensional steady-state water envi-ronment model of a lake was established based on a two-dimensional orthogonal grid with the river entering the lake as the boundary condition.The relationship between land-based pollution source emissions and cross-sectional water quality re-sponse was established.Through the application of this model system in Nansi Lake basin,the result shows that this model system has high water quality simulation accuracy and fast calculation efficiency.This system can meet the needs of fine management of water environment,and provide scientific basis for management decisions.
作者
李鹏飞
李艺
李爱华
李爽
李占杰
姚晓磊
LI Peng-fei;LI Yi;LI Ai-hua;LI Shuang;LI Zhan-jie;YAO Xiao-lei(Key Laboratory of Land and Sea Ecological Governance and Systematic Regulation of the Ministry of Ecology and Environment,Shandong Academy for Environmental Planning,Jinan 250101,China;College of Water Science,Beijing Normal University,Beijing 100875,China;Beijing Normal University Planning&Design Institute,Beijing 100082,China)
出处
《水电能源科学》
北大核心
2024年第11期64-68,共5页
Water Resources and Power
基金
国家重点研发计划(2022YFC3204403)。
关键词
流域水环境模拟
一维二维耦合模型
断面污染溯源
模型系统设计
湖泊型流域
water environment simulation of basin
one-dimensional and two-dimensional coupling model
pollution tracing
model system design
lake basin
