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Veldkamp et al 2017, Water scarcity hotspots travel downstream.pdf1,08 MBAdobe PDFView/Open
Title: Water scarcity hotspots travel downstream due to human interventions in the 20th and 21st century
Authors: Veldkamp, T.I.E.Wada, Y.Aerts, J.C.J.H.Döll, P.Gosling, S.N.Liu, J.Masaki, Y.Oki, T.Ostberg, S.Pokhrel, Y.Satoh, Y.Kim, H.Ward, P.J.
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Issue Date: 2017
Published in: Nature Communications Vol. 8 (2017)
Publisher: London : Nature Publishing Group
Abstract: Water scarcity is rapidly increasing in many regions. In a novel, multi-model assessment, we examine how human interventions (HI: land use and land cover change, man-made reservoirs and human water use) affected monthly river water availability and water scarcity over the period 1971-2010. Here we show that HI drastically change the critical dimensions of water scarcity, aggravating water scarcity for 8.8% (7.4-16.5%) of the global population but alleviating it for another 8.3% (6.4-15.8%). Positive impacts of HI mostly occur upstream, whereas HI aggravate water scarcity downstream; HI cause water scarcity to travel downstream. Attribution of water scarcity changes to HI components is complex and varies among the hydrological models. Seasonal variation in impacts and dominant HI components is also substantial. A thorough consideration of the spatially and temporally varying interactions among HI components and of uncertainties is therefore crucial for the success of water scarcity adaptation by HI.
Keywords: river water; water; adaptive management; environmental impact assessment; human activity; hydrological modeling; resource scarcity; river water; seasonal variation; twentieth century; twenty first century; water availability; Article; climate change; fluid intake; human; hydrology; land use; reservoir; seasonal variation; travel; uncertainty; water availability; water scarcity; water supply
DDC: 550
License: CC BY 4.0 Unported
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