Development and Application of Allocation Criteria for Water Uses and Users in Maximizing Value Productivity of Water Supplies

摘要

Three case studies of irrigation profitability in northwestern Iowa are summarized in this report. Two possible sources of groundwater for irrigation was considered: The Alluvial Aquifers, which have a relatively lower cost of pumping water; and the Dakota Sandstone Aquifer, which has a higher cost of pumping water. The linear programming model also considered three irrigation systems, and three different tillage systems. A multiperiod linear programming model was used to analyze investments in irrigation and four other alternatives. Techniques for predicting yield increases from irrigation and methods for estimation of the cost of irrigation were developed for eight forms in the study area.