Sustainability Model of Singkarak Lake Water Resources’ Conservation

This paper aims to create a stock and flow model of Singkarak Lake. This research is located in West Sumatra, Indonesia. The problem in this research is the lack of fulfillment of electricity needs in the hydropower plant due to the summer season. Adding scenario is needed, such as planting trees as water conservation. The method used is a stock and flow diagram to model the relationship between tree planting, water balance, and biomass. The methodology uses historical data, field surveys, qualitative and quantitative data. The results of this study found that Singkarak has decreased in lake water level every year. This is because there is a population growth factor that causes water demand to increase. Tree planting policies need to be implemented to keep water levels stable.