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    The complex multi-sectoral impacts of drought: Evidence from a mountainous basin in the Central Spanish Pyrenees

    Vicente-Serrano, S.M. and Peña-Angulo, D. and Murphy, C. and López-Moreno, J.I. and Tomas-Burguera, M. and Domínguez-Castro, F. and Tian, F. and Eklundh, L. and Cai, Z. and Alvarez-Farizo, B. and Noguera, I. and Camarero, J.J. and Sánchez-Salguero, R. and Gazol, A. and Grainger, S. and Conradt, T. and Boincean, B. and El Kenawy, A. (2021) The complex multi-sectoral impacts of drought: Evidence from a mountainous basin in the Central Spanish Pyrenees. Science of The Total Environment, 769. p. 144702. ISSN 0048-9697

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    We analyzed the impacts of drought severity on a variety of sectors in a topographically complex basin (the upper Aragón basin 2181 km2) in the Central Spanish Pyrenees. Using diverse data sources including meteorological and hydrological observations, remote sensing and tree rings, we analyze the possible hydrological implications of drought occurrence and severity on water availability in various sectors, including downstream impacts on irrigation water supply for crop production. Results suggest varying responses in forest activity, secondary growth, plant phenology, and crop yield to drought impacts. Specifically, meteorological droughts have distinct impacts downstream, mainly due to water partitioning between streamflow and irrigation channels that transport water to crop producing areas. This implies that drought severity can extend beyond the physical boundaries of the basin, with impacts on crop productivity. This complex response to drought impacts makes it difficult to develop objective basin-scale operational definitions for monitoring drought severity. Moreover, given the high spatial variability in responses to drought across sectors, it is difficult to establish reliable drought thresholds from indices that are relevant across all socio-economic sectors. The anthropogenic impacts (e.g. water regulation projects, ecosystem services, land cover and land use changes) pose further challenges to assessing the response of different systems to drought severity. This study stresses the need to consider the seasonality of drought impacts and appropriate drought time scales to adequately assess and understand their complexity,

    Item Type: Article
    Additional Information: Cite as: S.M. Vicente-Serrano, D. Peña-Angulo, C. Murphy, J.I. López-Moreno, M. Tomas-Burguera, F. Domínguez-Castro, F. Tian, L. Eklundh, Z. Cai, B. Alvarez-Farizo, I. Noguera, J.J. Camarero, R. Sánchez-Salguero, A. Gazol, S. Grainger, T. Conradt, B. Boincean, A. El Kenawy, The complex multi-sectoral impacts of drought: Evidence from a mountainous basin in the Central Spanish Pyrenees, Science of The Total Environment, Volume 769, 2021, 144702, ISSN 0048-9697,
    Keywords: Crop yield; Dendroecology; Phenology; Enhanced vegetation index; Drought indices; Vegetation activity; Irrigated lands;
    Academic Unit: Faculty of Social Sciences > Geography
    Faculty of Social Sciences > Research Institutes > Irish Climate Analysis and Research Units, ICARUS
    Item ID: 17669
    Identification Number:
    Depositing User: Conor Murphy
    Date Deposited: 12 Oct 2023 13:03
    Journal or Publication Title: Science of The Total Environment
    Publisher: Elsevier
    Refereed: Yes
    Use Licence: This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here

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