Water Delivery Performance of A Secondary Canals in terms of Equity and Reliability in Sindh Pakistan

M. U. MIRJAT, M. A. TALPUR, M. A. MANGRIO, A. A. TAGAR, S. A. JUNEJO, I. A. SHAIKH

Abstract


This study was conducted on three secondary canals (namely Belharo, Bareji and Mirpur distributaries) of Nara Canal command, Mirpurkhas, Sindh Pakistan. Study was conducted for two consecutive years i.e.; 2014-15. Gauges were installed at  head, middle and tail reaches of these canals  and discharges were monitored on weekly basis. It was observed that, on the average, distributaries were carrying excessive volumes of water during the year thus the total efficiency and PF was poor. The  excessive volumes of water in the distributaries suggest that  the water  among the end users was not distributed judicially. Generally, the parity of water supply was also ‘poor’ thus the reliability was also graded as ‘poor’  In order to increase the performance of irrigation system, there is need to minimize system’s conveyance losses and improve water application efficiency. This could be done through proper management and water distribution plans at tertiary canal levels. There is need to continuously monitor and measure the water diverted to the canals and make sure that water reaches at middle and tail reaches

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