Dust fall and biological soil crust distribution as indicators of the aeolian environment in China's Shapotou railway protective system

Auteur(s) et Affiliation(s)

ZHANG, J.

State Key Lab. of Earth Surface Processes and Resource Ecology, Normal Univ., Beijing, Chine

State Key Lab. of Soil Erosion and Dryland Farming on the Loes Plateau, Inst. of Soil and Water Conservation, CAS, Univ., Yangling, Chine

MOE Engineering Center of Desertification and Blown-Sand Control, Normal Univ., Beijing, Chine

ZHANG, C.

State Key Lab. of Earth Surface Processes and Resource Ecology, Normal Univ., Beijing, Chine

MOE Engineering Center of Desertification and Blown-Sand Control, Normal Univ., Beijing, Chine

MA, X.

State Key Lab. of Earth Surface Processes and Resource Ecology, Normal Univ., Beijing, Chine

MOE Engineering Center of Desertification and Blown-Sand Control, Normal Univ., Beijing, Chine

ZHOU, N.

State Key Lab. of Earth Surface Processes and Resource Ecology, Normal Univ., Beijing, Chine

MOE Engineering Center of Desertification and Blown-Sand Control, Normal Univ., Beijing, Chine

WANG, H.

State Key Lab. of Earth Surface Processes and Resource Ecology, Normal Univ., Beijing, Chine

MOE Engineering Center of Desertification and Blown-Sand Control, Normal Univ., Beijing, Chine

RISSLER, P.S.

Dept. of Sociology, Anthropology and Social Work, State Univ., Kansas, Etats-Unis

Description :
Spatial and temporal distributions of dust fall along with the spatial variation of the biological crust were measured along a cross-section in China's Shapotou railway protective system. The variation of the aeolian environment was evident from the spatial variation of near-surface wind flow and both grain size and accumulation rate of dust fall. The surface conditions along the cross-section were characterized by crust type, crust thickness, and ground (0–5 cm) compaction. The distribution of dust fall and crust indicated the intensity of aeolian activity and the stability of the aeolian environment. Further improvement of the aeolian environment by natural processes or by human construction would promote additional dust fall and accelerate the development of the crust.

Type de document :
Article de périodique

Source :
Catena (Giessen), issn : 0341-8162, 2014, vol. 114, p. 107-118, nombre de pages : 12, Références bibliographiques : 1 p.

Date :
2014

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

Langue :
Anglais