Earth System Dynamics
Earth System Dynamics
ESD
Articles | Volume 13, issue 1
Articles | Volume 13, issue 1
https://doi.org/10.5194/esd-13-595-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/esd-13-595-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 13, issue 1
Research article
 | 
29 Mar 2022
Research article |  | 29 Mar 2022

Widespread greening suggests increased dry-season plant water availability in the Rio Santa valley, Peruvian Andes

Lorenz Hänchen, Cornelia Klein, Fabien Maussion, Wolfgang Gurgiser, Pierluigi Calanca, and Georg Wohlfahrt

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Short summary
To date, farmers' perceptions of hydrological changes do not match analysis of meteorological data. In contrast to rainfall data, we find greening of vegetation, indicating increased water availability in the past decades. The start of the season is highly variable, making farmers' perceptions comprehensible. We show that the El Niño–Southern Oscillation has complex effects on vegetation seasonality but does not drive the greening we observe. Improved onset forecasts could help local farmers.
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