Water scarcity hotspots travel downstream due to human interventions in the 20th and 21st century

Veldkamp, T.I.E. and Wada, Y. and Aerts, J.C.J.H. and Döll, P. and Gosling, S.N. and Liu, J. and Masaki, Y. and Oki, T. and Ostberg, S. and Pokhrel, Y. and Satoh, Y. and Kim, H. and Ward, P.J. (2017) Water scarcity hotspots travel downstream due to human interventions in the 20th and 21st century. Nature Communications, 8 . 15697/1-15697/12. ISSN 2041-1723

[img]
Preview
PDF - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
Available under Licence Creative Commons Attribution.
Download (1MB) | Preview

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.

Item Type: Article
Schools/Departments: University of Nottingham, UK > Faculty of Social Sciences > School of Geography
Identification Number: 10.1038/ncomms15697
Depositing User: Eprints, Support
Date Deposited: 15 Jun 2017 13:59
Last Modified: 16 Jun 2017 00:04
URI: http://eprints.nottingham.ac.uk/id/eprint/43615

Actions (Archive Staff Only)

Edit View Edit View