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(Article of periodic en Anglais - 2007)

Document title

Negative and positive effects of topsoil biological crusts on water availability along a rainfall gradient in a sandy arid area

Authors(s) and Affiliation(s)

RAM A. ; AARON Y. ;

Abstract

Data on rainfall, runoff, soil moisture regime, and vegetation cover were collected at 5 monitoring sites in a sandy area along the Israeli-Egyptian border, where average annual rainfall varies from 86 to 160 mm. Results obtained cast doubt of the prevailing idea regarding the positive relationship between average annual rainfall and ecosystem characteristics. The findings are attributed to the decisive role played by the non-uniform properties of the topsoil biological crusts along the rainfall gradient considered. The process described may be regarded as a desertification process with increasing annual rainfall

Source

Article of periodic

published at : Catena / ISSN 0341-8162

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

Millesime : 2007, vol. 70, no3 [pp. 437-442]

Bibliographic references : 23 ref.

Collation : Illustration ;

Language

Anglais

Localisation

Laboratoire INTERGEO - Paris

INIST-CNRS, Cote INIST : 16767

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2008.
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