External supply of dust regulates dust emissions from sand deserts

Auteur(s) et Affiliation(s)

TA, W.

Key lab. of Desert and Desertification, Cold and Arid Regions Environmental and Engineering Research Institute (CAREERI), CAS, Lanzhou, Chine

WANG, H.

Key lab. of Desert and Desertification, Cold and Arid Regions Environmental and Engineering Research Institute (CAREERI), CAS, Lanzhou, Chine

JIA, X.

Key lab. of Desert and Desertification, Cold and Arid Regions Environmental and Engineering Research Institute (CAREERI), CAS, Lanzhou, Chine

Description :
Here, the AA. show that an external dust supply is also an important dust contributor to the sand desert, and that dust emission from the sand desert will occur if an external dust supply is available and diminish if the external supply is cut off. Their results relate the dust emission from sand deserts to an external dust supply resulting from disturbed processes or changed hydrological processes caused by climate changes or human activities, and also suggest that the dust emission rate of natural sand deserts can actually increase with external dust supply resulting from human activities or climatic changes, rather than with wind energy alone, as is commonly perceived.

Type de document :
Article de périodique

Source :
Catena (Giessen), issn : 0341-8162, 2013, vol. 110, p. 113-118, nombre de pages : 6, Références bibliographiques : 29 ref.

Date :
2013

Editeur :
Pays édition : Allemagne, Cremlingen-Destedt, Catena

Langue :
Anglais