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| Titel |
Expansion of global drylands under a warming climate |
| VerfasserIn |
S. Feng, Q. Fu |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7316
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| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Chemistry and Physics ; 13, no. 19 ; Nr. 13, no. 19 (2013-10-14), S.10081-10094 |
| Datensatznummer |
250085749
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| Publikation (Nr.) |
 copernicus.org/acp-13-10081-2013.pdf |
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| Zusammenfassung |
| Global drylands encompassing hyper-arid, arid, semiarid, and dry subhumid
areas cover about 41 percent of the earth's terrestrial surface and are home
to more than a third of the world's population. By analyzing observations for
1948–2008 and climate model simulations for 1948–2100, we show that global
drylands have expanded in the last sixty years and will continue to expand in
the 21st~century. By the end of this century, the world's drylands (under a
high greenhouse gas emission scenario) are projected to be
5.8 × 106 km2 (or 10%) larger than in the
1961–1990 climatology. The major expansion of arid regions will occur
over southwest North America, the northern fringe of Africa, southern Africa,
and Australia, while major expansions of semiarid regions will occur over the
north side of the Mediterranean, southern Africa, and North and South
America. The global dryland expansions will increase the population affected
by water scarcity and land degradations. |
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