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Connecting Indigenous Knowledge and Scientific Research for Improved Water Security

by Portal Web Editor last modified Feb 13, 2020 09:18 PM
Contributors: The Forest Trends Team
Forest Trends recently published a new research brief describing results from a study investigating the potential contributions of pre-Incan water infiltration infrastructure for water security in the Andes. The study’s results show that indigenous solutions dating back 1,400 years that harness natural hydrological functions can help to secure water supplies for the downstream city of Lima.

Original Source

Lima, Peru is the second-largest desert city in the world (the largest is Cairo). Located on Peru’s dry western coast, the city gets its water from rivers originating high in the Andes mountains. River flows vary season-to-season, with drought common during the months of May to November, followed by a spike in river levels between December and March.

For Lima, this means a pattern of large water deficits in its dry season. On the other hand, the city also experiences water surpluses during the rainy season. The city depends heavily on artificial storage for its water supplies, but this excess water is not fully captured for later use. Climate change is putting additional pressure on existing water resources, as are soil degradation and land use change in rural areas around the city.

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