Shangqinhuai wetland in Nanjing city has been chosen to be the research target due to its intense water network and complex connectivity. Dynamic numerical model of water supply and cycling of the wetland has been set up using 2D modeling tool of DHI MIKE21. The water demand and the scheme of water supply and recycling were studied based on the model. The modeling results showed that the water system lfowed lfuently and the current field was uniform and reasonable. Not only the water demand was met, but also the water current velocity can be guaranteed, especially for the big lake area. The water supply and recycling measures based on the modeling results will be very effective for its purification capacity and water quality maintenance.%针对南京上秦淮湿地这一水网密布、水系连接复杂的地区,采用MIKE21二维水动力模型建立了湿地补水及水循环的数学模型.基于模型研究了湿地生态补水量及补水、水循环方案.模拟结果表明:在进水、引水、出水设施的共同作用下,水系流动通畅,流场分布较均匀合理.除了能很好地实现全区补水,还能保证整体水域流速,特别是几个湖区也能保持基本的流动状态.基于模型的湿地补水及水循环对于湿地自净能力的提高和水质维护有很大作用.
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