New publications: Advancing water stress assessment in Peru’s river basins

The Food and Agriculture Organization of the United Nations (FAO), in collaboration with Peru’s National Water Authority (ANA), has released the second of two reports presenting the results of pilot studies conducted in the Huallaga and Pisco river basins. The work provides insights into water stress dynamics and environmental flow requirements in the two basins. The studies applied the SDG Indicator 6.4.2 (level of water stress) methodology, using innovative modelling tools to generate disaggregated, decision-ready information at the sub-basin level.

Both pilots illustrate practical tools, methods and sub-basin information that can be replicated in other countries. The results will support SDG 6 monitoring and can inform key national planning instruments, including the National Water Resources Policy and Strategy and watershed-level management plans.

The studies applied the Water Stress Plugin developed by FAO together with the Stockholm Environment Institute (SEI). The tool is designed to help decision-makers visualise seasonal and spatial variations in water stress within a basin.

Both publications, available in Spanish, offer sub-basin-scale results, climate‑sensitive projections, and information to support water resources planning at basin and national levels. They also demonstrate how the SDG 6.4.2 methodology can be applied consistently across different hydrological and geographic contexts.

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Capacity Development