MODCYCLE二元水循环模型关键技术研究

Research on Key Techniques of MODCYCLE Binary Water Cycle Model

探讨了MODCYCLE二元水循环模型中关于农田水循环几个关键技术:灌溉水源分为河道、水库、浅/深层地下水取水及外调水5种;灌溉方式分为指定灌溉和动态灌溉;模拟地表积水过程能刻画干旱、半干旱及湿润地区;作物管理分为种植、收获、收获并终结、终结操作4种.与应用广泛的SWAT模型进行对比分析可知,MODCYCLE模型模拟过程更符合真实情景并具有通用性.

Several key techniques of farmland water cycle were discussed in the model of MODCYCLE binary water cycle,such as irrigation water resources were divided into channels,reservoirs,shallow/deep groundwater taking and water transfer,irrigation modes into designated irrigation and dynamic irrigation,simulating the surface ponding process could depict arid,semiarid and humid regions and the crop management were divided into planting,harvesting,harvesting and ending up as well as ending operation.Comparing with SWAT model widely used,the simulation process of MODCYCLE model accorded with real situations much more and was universal.