Vegetation succession prevents dry lake beds from becoming dust sources in the semi-arid steppe region of China

Auteur(s) et Affiliation(s)

ZHAO, F.

College of Urban and Environmental Sciences, Univ., Beijing, Chine

MOE Lab. for Earth Surface Processes, Univ., Pékin, Chine

LIU, H.

College of Urban and Environmental Sciences, Univ., Beijing, Chine

MOE Lab. for Earth Surface Processes, Univ., Pékin, Chine

YIN, Y.

College of Urban and Environmental Sciences, Univ., Beijing, Chine

MOE Lab. for Earth Surface Processes, Univ., Pékin, Chine

HU, G.

College of Urban and Environmental Sciences, Univ., Beijing, Chine

MOE Lab. for Earth Surface Processes, Univ., Pékin, Chine

WU, X.

College of Urban and Environmental Sciences, Univ., Beijing, Chine

MOE Lab. for Earth Surface Processes, Univ., Pékin, Chine

Description :
Here the AA. chose eight inland dry lakes, one outflow lake and one river on the southeast edge of the Inner Mongolian Plateau to investigate vegetation patterns along transects from lake bed to lake shore, and determine the relationships between vegetation patterns and environmental factors. The results show that dry lake bed soils have high contents of fine particles. Also, soil salt content is the most critical control on vegetation succession on desiccated lake beds. The AA. suggest grazing should be avoided around lake shores, especially in Achnatherum splendens communities, because high vegetation cover and biomass not only protect soil from erosion, but also promote the deposition of fine particles blown from upwind regions.

Type de document :
Article de périodique

Source :
Earth surface processes and landforms, issn : 0197-9337, 2011, vol. 36, n°. 7, p. 864-871, nombre de pages : 8, Références bibliographiques : 46 ref.

Date :
2011

Editeur :
Pays édition : Royaume-Uni, Chichester, Wiley

Langue :
Anglais