【摘要】 根据广东省台山市都斛镇灌排河网的特点 ,建立了河网非恒定出流数学模型。该模型根据潮水位的变化 ,模拟河网的水位和流量变化过程。通过调节挡潮闸的运行时间和开启度 ,使该系统既能满足排涝要求 ,又能合理控制河网水位 ,使之满足农作物生长对地下水位的要求更多还原

【Abstract】 Based on specific characteristics of river network in Duhu town of Taishan city, Guangdong province, a unsteady outflow model is established. The model is used to calculate water level and discharge of river network with tidal level as independent variable. The water level of the river network can be regulated effectively to meet crop demand, by controlling open time and lifting height of the tidal gate.更多还原