Method for Evaluating Irrigation Projects

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Abstract
A method is presented for evaluating irrigation projects by comparing the performance of alternative system designs over a planning period specified by the user. The estimating model is based on a universal crop production function for water which is utilized to optimize interzonal water distribution. Project zones are defined by climate, soil, and crop produced. Price and climatic uncertainty are dealt with directly in the model assuming the probability distribution of the respective variable is known. The measures of economic viability available for comparing alternative system designs include: The benefit/cost ratio, internal rate of return, and net present worth.

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