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  Increased Vegetation in Mountainous Headwaters Amplifies Water Stress During Dry Periods

Vicente‐Serrano, S. M., Domínguez‐Castro, F., Murphy, C., Peña‐Angulo, D., Tomas‐Burguera, M., Noguera, I., López‐Moreno, J. I., Juez, C., Grainger, S., Eklundh, L., Conradt, T., Azorin‐Molina, C., El Kenawy, A. (2021): Increased Vegetation in Mountainous Headwaters Amplifies Water Stress During Dry Periods. - Geophysical Research Letters, 48, 18, e2021GL094672.
https://doi.org/10.1029/2021GL094672

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 Creators:
Vicente‐Serrano, S. M.1, Author
Domínguez‐Castro, F.1, Author
Murphy, C.1, Author
Peña‐Angulo, D.1, Author
Tomas‐Burguera, M.1, Author
Noguera, I.1, Author
López‐Moreno, J. I.1, Author
Juez, C.1, Author
Grainger, S.1, Author
Eklundh, L.1, Author
Conradt, Tobias2, Author              
Azorin‐Molina, C.1, Author
El Kenawy, A.1, Author
Affiliations:
1External Organizations, ou_persistent22              
2Potsdam Institute for Climate Impact Research, Potsdam, ou_persistent13              

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 Abstract: The dynamics of blue and green water partitioning under vegetation and climate change, as well as their different interactions during wet and dry periods, are poorly understood in the literature. We analyzed the impact of vegetation changes on blue water generation in a central Spanish Pyrenees basin undergoing intense afforestation. We found that vegetation change is a key driver of large decreases in blue water availability. The effect of vegetation increase is amplified during dry years, and mainly during the dry season, with streamflow reductions of more than 50%. This pattern can be attributed primarily to increased plant water consumption. Our findings highlight the importance of vegetation changes in reinforcing the decrease in water resource availability. With aridity expected to rise in southern Europe over the next few decades, interactions between climate and land management practices appear to be amplifying future hydrological drought risk in the region.

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 Dates: 2021-09-152021-09-15
 Publication Status: Finally published
 Pages: -
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 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1029/2021GL094672
MDB-ID: No data to archive
PIKDOMAIN: RD2 - Climate Resilience
Organisational keyword: RD2 - Climate Resilience
Working Group: Hydroclimatic Risks
Research topic keyword: Attribution
Research topic keyword: Ecosystems
Research topic keyword: Freshwater
Research topic keyword: Land use
Regional keyword: Europe
Model / method: Quantitative Methods
OATYPE: Green Open Access
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Title: Geophysical Research Letters
Source Genre: Journal, SCI, Scopus, p3
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Pages: - Volume / Issue: 48 (18) Sequence Number: e2021GL094672 Start / End Page: - Identifier: CoNE: https://publications.pik-potsdam.de/cone/journals/resource/journals182
Publisher: American Geophysical Union (AGU)