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| Titel |
Review and classification of indicators of green water availability and scarcity |
| VerfasserIn |
J. F. Schyns, A. Y. Hoekstra, M. J. Booij |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1027-5606
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| Digitales Dokument |
URL |
| Erschienen |
In: Hydrology and Earth System Sciences ; 19, no. 11 ; Nr. 19, no. 11 (2015-11-18), S.4581-4608 |
| Datensatznummer |
250120852
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| Publikation (Nr.) |
 copernicus.org/hess-19-4581-2015.pdf |
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| Zusammenfassung |
| Research on water scarcity has mainly focussed on blue water (ground- and surface
water), but green water (soil moisture returning to the atmosphere
through evaporation) is also scarce, because its availability is limited and
there are competing demands for green water. Crop production, grazing lands,
forestry and terrestrial ecosystems are all sustained by green water. The
implicit distribution or explicit allocation of limited green water
resources over competitive demands determines which economic and
environmental goods and services will be produced and may affect food
security and nature conservation. We need to better understand green water
scarcity to be able to measure, model, predict and handle it. This paper
reviews and classifies around 80 indicators of green water availability and
scarcity, and discusses the way forward to develop operational green water
scarcity indicators that can broaden the scope of water scarcity
assessments. |
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