Research on the structure of the decision support system model base of large-scale irrigation district management

It is a kernel of model base that was set up for irrigation district management decision support system(DSS), direct influence to validity of decision project. It includes decision models of inrush of water, water, irrigation scheduling optimization, irrigation channel working regime optimization, forecast of water requirements of corps and engineering management is DSS of irrigation district. It is key to irrigation district management decision support system that built one set model base system of structure reasonableness, manipulation expedience and maintenance briefness. This paper discusses presentation of model and management of model base, based on analyzing a lot model base of irrigation district. The best effect of decision model is reached.