Agricultural Water Conservation Cost Control Mechanism of the Pre-Coastal City Based on Design Innovation

Water-saving irrigation is the livelihood of the people to solve the problem of coastal city agriculture water shortage of water conservancy projects. To investigate the situation of the construction of agricultural water-saving facilities in Tianjin, first ,this paper analyzes the using costs, including running maintenance costs. According to the life-cycle cost theory, it is an important means to control using costs in the infrastructure construction engineering design stage. Then the paper will analyze the complexity of the demand of urban water-saving irrigation and propose that designing innovation is the key to control the complex using costs. Finally , the paper will analyze The effect of investment and financing model of design innovation process. On the one hand, the mode of investment and financing will help to solve the construction funding gap; On the other hand, it will affect water-saving cost pre-control in different degrees.