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January 14, 2026Restoration Ecology

Restoring High Andes wetlands through landscape rehydration: a low‐cost and satellite‐based approach

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Authors

LÁLeandro ÁlvarezMFMaria Emilia FernandezJRJuan Antonio Rivera

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Overview

This research demonstrates the enhanced vegetation cover in High Andes wetlands using low-cost methods, suggesting effective recovery strategies.

Key Points

  • The aim is to assess the effectiveness of low-cost techniques for restoring degraded wetlands in the High Andes.
  • Built five check dams to redistribute water in Ciénaga del Tupungato wetland.
  • Monitored wetland area with Sentinel-2 and Landsat imagery.
  • Applied Before–After–Control–Impact comparisons with untreated wetlands.
  • Delineated restoration sectors using NDVI map algebra and analyzed pixel-level NDVI statistics.
  • Vegetation cover increased by 48% from 3.8 ha in 2020 to 5.6 ha in 2024.
  • Long-term analysis showed interannual variation in wetland extent from 1986-2025.
  • Restored wetlands exhibited higher mean NDVI and reduced temporal variability than surrounding areas.

Cite This Study

Álvarez et al. (2026) studied this question.

synapsesocial.com/papers/6966f31d13bf7a6f02c00c5dhttps://doi.org/10.1111/rec.70319
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