A Mathematical Model for Estimating Varied Irrigation Efficiency

This study proposed a mathematical model for estimating irrigation efficiency. The proposed model considered the previous situation, and current situation and introduces up-to-date concepts in assessing irrigation efficiencies to manage water resources more efficiently and productively. The proposed model not only determines overall irrigation efficiency but covers all aspects of improvement factors such as the capacity of stakeholders, product costs, etc. The approaching model was applied to determine of irrigation efficiency of the Nam Houm Irrigation Scheme, (in the Central region of Lao PDR). The results obtained that the mathematical models can be used to estimate varying irrigation efficiencies, given the total available water resources, farmer participation, and previous irrigated area. The model provided the optimal condition of the irrigation efficiencies which are close to the actual irrigation efficiency.