inscription
PORTAIL D'INFORMATION GÉOGRAPHIQUE

Spatial distribution of wind erosion and its driving factors in China

Auteurs :
ZHANG GUO-PING,
ZHANG ZENG-XIANG,
LIU JI-YUAN,

Description :
Based on remote sensing and geographic information system, the spatial distribution of nation-wide wind erosion is studied, and the 1:100 000 national map of soil erosion by wind in China is made. Wind speed, soil dryness, NDVI, soil texture and the slope of land surface are the key factors to wind erosion. The relations between wind erosion and each factor are discussed. The method of principal component is used to pick up the information included in the 5 factors, and the wind erosion dynamic index (WEDI) is established. Its comparison with the RS/GIS derived data shows that WEDI can reflect the potential capacity of soil erosion by wind.


Type de document :
Article de périodique

Source :
Journal of geographical sciences. Acta geographica sinica, issn : 1009-637X, 2001, vol. 11, n°. 2, p. 127-139, Collation : Illustration, Références bibliographiques : 21 ref.

Date :
2001

Editeur :
Pays édition : Chine

Langue :
Anglais
Droits :
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