Perez M.E.C., Pernia J.B.D., Futalan C.C.M., Ligaray M.V., Choi A.E.S., 2025, Integrated Modeling Approaches to Enhance Water Sustainability in Philippine Watersheds: A Review of its Applications and Limitations, Chemical Engineering Transactions, 120, 157-162.
Water accessibility in the Philippines remains a critical challenge due to its increasing demand caused by increasing population and climate change. The complexity of water supply and demand within the watershed should be studied to focus on more sustainable management strategies addressing water-related issues. This review evaluates the application of numerous hydrological models such as the Water Evaluation and Planning System, Variable Infiltration Capacity, Water Erosion Prediction Project, and Soil and Water Assessment Tool in the prediction of water availability and its distribution systems under different conditions. These integrated frameworks support the evaluation of sustainable management scenarios for a more effective and efficient water utilization. With sound water management, long-term water security in the Philippines can be achieved. The use of hydrological models can offer stakeholders valuable information such as water hydrology, assess future scenarios in water systems, and guide strategic water allocation and conservation. This paper investigates the various advantages, limitations and their integration into decision-making for water quality monitoring, watershed management and adaptive infrastructure planning that are vital to achieve water security and water resilience in the Philippines. Optimized water management can decrease reliance in energy-intensive water supply systems and influence the use of renewable energy sources in the water industry.
