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干旱区新建灌区的水盐动态是其环境变化的主要影响因素 ,也是影响灌区正常发挥效益的关键问题 ,因此 ,预测水盐动态对于环境保护和灌排方案的制定显得尤为重要。以土壤饱和与非饱和流的水动力学方法为依据 ,采用一维流与二维流数值模拟相耦和的方法 ,建立起了秦王川灌区水盐动态模拟模型 ,预测了灌区通水后设计运行方式下未来2 0年的水盐动态。可为灌区制定排水方案、有效进行水管理提供决策依据
The water and salt dynamics of new irrigated areas in arid areas are the main influencing factors of their environmental changes and also the key issues affecting the normal benefits of irrigated areas. Therefore, predicting the water and salt dynamics is particularly important for the formulation of environmental protection and irrigation and drainage schemes. Based on the method of hydrodynamics of saturated and unsaturated flow, the coupled model of one-dimensional flow and two-dimensional flow numerical simulation was used to establish the dynamic simulation model of water and salt in Qinwangchuan irrigation area. Water and Salt Dynamics in the Next 20 Years under Operation Mode. Drainage program can be developed for the irrigation district, to provide effective decision-making basis for water management