Irrigation system performance monitoring as diagnostic tool to operation: Case study of shahibala minor of Warsak gravity canal
2004
Tariq, J.A. | Khan, M.J. | Kakar, M.J. (NWFP Agricultural Univ., Peshawar (Pakistan). Dept. of Water Management)
Performance of Shahibala Minor Peshawar was monitored during April to August 2002. The study revealed the impact of present operational procedures of Provincial Irrigation Department (PID) on water management practices at tertiary level. Finally the study provides great deal of understanding to policy makers for management of irrigation system. Minor has six outlets, three pipe outlets and three open flumes. The study was focused on hydraulic performance based on delivery performance ratio (DPR), adequacy based on relative water supply (RWS) and variability in discharge based on spatial coefficient of variation. Off take and all outlets were calibrated by area velocity method. During study period, the delivery performance ratio of minor and head outlets indicate that head outlet draw more than their design discharge, whereas at middle and tail receiving less than allocated discharge. In reality because of poor operation and technical deficiencies most of water is ended at the head outlet and inequity exist at system level. The relative water supply of the first head outlet indicated that supply is more than demand. Whereas at remaining outlets supply was less than demand. The variability in discharge along the outlets has increasing trend.
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