Engenharia de Sistemas de Irrigação e Drenagem

The Evaluation of Water Leakage in the Irrigation Channels of Kazeroon Plain Using the Input Method of Discharge and Experimental Formulas

Abstract

Momenzadeh M, Shahrokhnia MA and Bayat ME

Water scarcity is one of the most important problems encountered in arid and semi-arid areas, and as a limiting factor, the growth and development of vegetation in these areas is limited. Considering that Iran is a country of low water and dryness, using solutions to reduce water consumption and optimal use of available water amounts to a solution to many problems. One of the best practices is the optimal utilization of soil and water resources. With the increasing population of the world and the limited supply of water and food, many experts have sought to limit the use of this water for optimal use. One of these existing strategies is to evaluate the effect of coating on irrigation canals to reduce leakage. The results of the research carried out in Kazerun plain in Fars province, which was carried out by the Input flow method, showed that in the case of coated walls of the Arab irrigation canals, Shah Paradise and Khaje bagheri, from dirt to coated, decreased by 57.78, 78.73, and 89.4% in water leakage. The statistical analysis showed that the difference between the amount of water leakage in the Arab soil and coated channel at the level of 5% was significant in the soil and coated channel of the Shah landscape at a level of approximately 1% and in the Khaje bagheri canal at this significant level are not. Also, the results of comparing this method with empirical formulas showed that the maximum leakage value is represented by the Davis and Wilson formulas in the Khaje Bagheri channel and the lowest leakage rate is the Indian Punjab formula in the Arab canal.