斧头湖流域治理工程水动力模拟与分析

Hydrodynamic simulation and analysis of Futou Lake watershed management project

流域综合治理对于湿地水环境改善、生态恢复具有重要意义,水动力数值模拟是预测修复效果的重要手段。基于斧头湖湖泊形态、水文条件、地形地貌特征与流域治理工程方案,通过MIKE 3建立湖泊流场并进行水动力模拟,对比分析圩垸拆除前后水动力特性及变化情况,预估圩垸拆除对湖泊流场产生的影响,验证工艺流程的合理性,并为全湖水质变化分析提供借鉴。数值模拟方法在流域治理与生态修复工程中的有效应用,可从整体上优化湖泊生态恢复方案。

Comprehensive watershed management is of great significance for wetland water environment improvement and ecological restoration, and hydrodynamic numerical simulation is an important means to predict the restoration effect. Based on the lake morphology, hydrological conditions, landform characteristics and watershed management project of Futou Lake, this paper analyzes the water quality of Futou Lake by Mike 3,establishes the flow field of the lake and carries out the hydrodynamic simulation, compares and analyzes the hydrodynamic characteristics and changes before and after the removal of polders, estimates the impact of the removal of polders on the flow field of the lake, verifies the rationality of the process, and provides reference for the analysis of water quality changes of the whole lake. The effective application of numerical simulation in watershed management and ecological restoration project can optimize the lake ecological restoration scheme as a whole.