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Verlagsausgabe
DOI: 10.5445/IR/1000076683

Rare, Intense, Big fires dominate the global tropics under drier conditions

Hantson, Stijn; Scheffer, Marten; Pueyo, Salvador; Xu, Chi; Lasslop, Gitta; Nes, Egbert H. van; Holmgren, Milena; Mendelsohn, John

Abstract:
Wildfires burn large parts of the tropics every year, shaping ecosystem structure and functioning. Yet the complex interplay between climate, vegetation and human factors that drives fire dynamics is still poorly understood. Here we show that on all continents, except Australia, tropical fire regimes change drastically as mean annual precipitation falls below 550 mm. While the frequency of fires decreases below this threshold, the size and intensity of wildfires rise sharply. This transition to a regime of Rare-Intense-Big fires (RIB-fires) corresponds to the relative disappearance of trees from the landscape. Most dry regions on the globe are projected to become substantially drier under global warming. Our findings suggest a global zone where this drying may have important implications for fire risks to society and ecosystem functioning.


Zugehörige Institution(en) am KIT Institut für Meteorologie und Klimaforschung - Atmosphärische Umweltforschung (IMK-IFU)
Publikationstyp Zeitschriftenaufsatz
Jahr 2017
Sprache Englisch
Identifikator ISSN: 2045-2322
URN: urn:nbn:de:swb:90-766837
KITopen ID: 1000076683
Erschienen in Scientific reports
Band 7
Heft 1
Seiten Art.Nr. 14374 / 5 S.
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