Operational analysis of the cascaded Wadecha-Belbela reservoir system (Ada’a Liben Woreda, in Oromia Region)

TL;DRAbstract

Wadecha-Belbela reservoir system is located in Oromia Region, East Shoa zone, Adaa Liben woreda serving as a water source of 1600ha irrigation projects. The irrigation system under the reservoir system is increasing progressively during the past decades. The expansion of irrigation development without the knowledge of the water source will have the outcome of agricultural yield reduction and water stress. Inadequate knowledge on operation of the reservoir has been leading to inefficient usage of stored water. This study focuses mainly on the description and assessment of water resources of the woreda based on climate, land and water information, estimation of irrigation water requirements of the reservoir system irrigation projects, and operational analysis of the reservoir system by the application of reservoir system simulation model (HEC-ResSim). Nine years of meteorological data were used to simulate the Wadecha-Belbela reservoir system. The main input data to the model were the re

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