Performance Assessment of Watershed Management Based on Elementary Hydrological Models Case: The Catchments Area of Mrica Reservoir

Land conversion from forest to cultivation of vegetable crops that did not follow the rules of conservation practices, increased the rate of sediment entering the reservoir of Mrica. The reservoir which have been operated since 1989, will be full of sediment in 2021. Complexity of managing watershed areas still require an innovative approach to improve the hydrological situation, particularly to conserve water resources. The phenomenon of land use change and performance impacts caused, an event in nature that are necessary to determine the action that needs to be done in the future. Hydrological models is an extrapolation tool that can help understanding the phenomenon. This study aims at optimizing the performance-related watershed management, using a quantitative approach based on elementery hydrological models. This paper, using the method of literature review, was focused on revealing conception, as the approach in achieving the goal. The conception of the study was the assembly-serial sequence of hydrological models and watershed management-related quantitative assessment performance. The concept of the assembly will apply the role of hydrological models as a basis for quantitative assessment of performance-related watershed. The results of assembly, will provide an overview of the role of hydrological models, to produce information relating to the performance of output-based watershed management. Information obtained from such a role can be used as an alternative input in policy of water resources management and the basis for the development of specific hydrological models for Mrica reservoirs.