Optimal choice of water saving irrigation mode
Qing Zhang · Journal of Hydraulic Engineering · 2002
The method for synthetical evaluation of optimal choice on water saving irrigation mode is presented. The analytic hierarchy process(AHP) theory is applied and the following factors are taken into account:the national economic evaluation, the technical evaluation and the social evaluation of a project, internal rate of return; net present value, benefit to cost ratio, period of investment return, the uniformity of irrigation, the intensity of irrigation, rate of irrigation water used, the security and reliability of the water saving irrigation mode, the adaptability of landforms, the adaptability of crops, the popularity with the farmers and the difficulty in construction. This paper also deals with the general compositor and the single compositor of evaluating the mode of water saving irrigation and calculating method of the weights of the correlated factors.