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(Article of periodic en Anglais - 2012)

Document title

How the Quaternary climatic change affects present hydrogeological system on the Chinese Loess Plateau : A case study into vertical variation of permeability of the loess–palaeosol sequence

Authors(s) and Affiliation(s)

ZHAO J. (1 2) ; LONG T. (1) ; WANG C. (1) ; ZHANG Y. (1) ;
(1) College of Tourism and Environment, Shaanxi Normal Univ., Xi'an, CHINE
(2) State Key Lab. of Loess and Quaternary Geology, Inst. of Earth Environment, CAS, Xi'an, CHINE

Abstract

The results of in situ permeability measurements on the Luochuan Yuan (tableland), as a case study, illustrate that average infiltration rate of loess layers is higher than that of palaeosol layers, and that average time for the loess layers to reach quasi-steady infiltration is longer than that of palaeosol layers. In addition, loess layers have higher porosity than palaeosols on average, and it is suggested as a major reason why the loess layers have a higher permeability on average. The difference of permeability between loess and palaeosol layers facilitates the loess units more likely to be aquifers. In this regard, the Quaternary climatic change theory can make a contribution to hydrogeology of the Chinese Loess Plateau, and the regional climatostratigraphy can be regarded as a baseline for local water resource positioning and revegetation in such a semi-arid area

Source

Article of periodic

published at : Catena / ISSN 0341-8162

Editor : Catena, Cremlingen-Destedt - ALLEMAGNE (1973)

Millesime : 2012, vol. 92 [pp. 179-185]

Bibliographic references : 1 p.

Collation : 4 fig.

Language

Anglais

INIST-CNRS, Cote INIST : 16767

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1016/j.catena.2011.12.009

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2012
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