Assessment of Performance and water Demand of canal system in the Dhora canal command Qureshi Sumbul1, Kumar Yogendra2 1Officers Enclave, South Civil Lines, Roorkee, India 2Department of Irrigation and Drainage Engineering, Govind Ballabh Pant University Agriculture and Technology, Pantnagar, India Online published on 7 September, 2019. Abstract The study was conducted to evaluate the existing performance of canal system of the Dhora Canal Command of Command of Udham Singh Nagar district of Uttarakhand and Bareilly district of Uttar Pradesh in terms of adequacy (PIA), dependability (PID), efficiency (PIF) and equity (PIE). For efficient water management, estimation of crop water demand based on temporal and spatial distribution is a prime requirement. The gross irrigation requirement, of different crops grown in the canal command, was estimated using reference crop evapo-transpiration (ETO), crop coefficient (KC), crop water requirement, effective rainfall (Peff), and net irrigation water requirement (NIWR). Three minors namely Bhanga, Shahdaura and Sirsa were taken individually for evaluation, as well as whole command as a one unit was also evaluated for its performance. The estimated values of parameters were compared with the standard values for respective parameter as suggested by Molden and Gates (1990). On the basis of the performance of canal system was classified as Good, Fair or Poor. Due to lack of data related to the different outlet of minors in the command, the parameter of equity was calculated only for the whole command while others parameters were calculated for different canals as well as for command also. It was observed that on the basis of performance indicators, there was a difference between the irrigation period and the period when the water was released from the reservoir. The overall efficiency of the canal command showed poor efficiency of the system as the water was supplied to the canals in excess of the requirements. This was a problem related to operation and management, as the water was delivered by the irrigation department during the period when water was not required for crops in the canal commands. Top Keywords Reference Crop evapo-transpiration, Canal Command, Performance indicators, Water Management. Top |