Economic Adjustments to Groundwater Depletion in the High Plains: Do Water‐Saving Irrigation Systems Save Water?
构建风险规划模型，分析灌溉效率对高平原地区灌溉用水的影响，发现最优用水量随效率变化并非单调，但中高效系统均比低效漫灌系统用水更少。
Abstract A common policy prescription for conserving irrigation water is to promote more efficient or “water‐saving” irrigation technologies. We develop a risk‐programing model to quantify the effect of irrigation efficiency on irrigation water use in the High Plains, taking account of irrigation timing and well capacity limits. We find that optimal irrigation does not respond monotonically to changes in efficiency, although intermediate and high‐efficiency systems both result in less water use than an inefficient flood system.