Economic Design of Irrigation Water Supply Reliability
Xiaolin Wang · Journal of Irrigation and Drainage · 2005
Irrigation water supply reliability is a main criterion of evaluating irrigation planning and management. The evaluation result of present irrigation firm probability index is far from the reality due to its inability to reflect irrigation water's time effect and deficiency degree effect. So this paper proposes an improved evaluation method of irrigation water supply reliability that gives weights to each time period and fuzzy grades to different deficiency using inversion through introducing crop-water production function. This method enables irrigation water supply reliability respond to crop yields therefore has explicit economic meaning, furthermore it is simple and applicable to evaluate irrigation management alternatives.