Reservoirs are large artificial lakes created by damming rivers or streams. They are used to store water for various purposes such as irrigation, hydropower generation, flood control, and drinking water supply. Reservoirs are important for water management and can have significant ecological and social impacts on surrounding areas. Research in this area often focuses on studying the environmental, economic, and social implications of reservoir construction and management, as well as finding ways to optimize their use and mitigate negative impacts. This can include studying water quality, sedimentation, wildlife habitat, and the effects of reservoirs on downstream ecosystems.