根据湖泊水质管理技术的需要 ,建立了城市浅水湖泊水动力生态水质模型 .模型模拟的状态变量包括温度、悬浮物、磷、氮、浮游植物、透明度、溶解氧和生化需氧量等 .模型率定有较好的精确度 ,已经为南京市玄武湖在清淤、截污和引水等工程共同运行的条件下做了水质模拟和预测 ,其结果为玄武湖水质优化管理技术的最终决策提供了科学依据 According to the need of lake water quality management technology, the model of hydrodynamic eco-water quality of shallow lake in urban area is established.The state variables of model simulation include temperature, suspended matter, phosphorus, nitrogen, phytoplankton, transparency, dissolved oxygen and biochemical oxygen demand, Given the better accuracy, the water quality simulation and prediction have been done for the Xuanwu Lake in Nanjing under the conditions of dredging, sewage interception and diversion. The results provide the final decision-making for Xuanwu Lake water quality optimization management technology Scientific basis