(Article of periodic en Anglais - 2009)

Document title

Microbiotic crusts as biomarkers for surface stability and wetness duration in the Negev Desert

Authors(s) and Affiliation(s)

KIDRON G.J. (1) ; VONSHAK A. (2) ; ABELIOVICH A. (3) ;
(1) Inst. of Earth Sciences, Hebrew Univ., Jerusalem, ISRAEL
(2) Dep. of Dryland Biotechnologies. The Jacob Blaustein Inst. for Desert Research, Ben Gurion Univ. of the Negev, Sede Boqer, ISRAEL
(3) Dep. of Biotechnology Engineering, Inst. of Biotechnology, Ben Gurion Univ., Beer Sheva, ISRAEL


Microbiotic crusts play an important role in arid and semi-arid regions. In an attempt to assess the main factors that may determine their growth, measurements of the amount of fines (silt and clay), rain, moisture content, wetness duration and wind erosion and deposition were carried out along a 12 station transect within a partially crusted dune field in the western Negev Desert and compared to the crust cover and chlorophyll content. Results and discussion. Owing to the strong positive relationship between daylight wetness duration and the crust's chlorophyll content, the crust may serve as a useful biomarker for the quantification of surface wetness duration


Article of periodic

published at : Earth surface processes and landforms / ISSN 0197-9337 / CODEN ESPLDB

Editor : Wiley, Chichester - ROYAUME-UNI (1981)

Millesime : 2009, vol. 34, no12 [pp. 1594-1604]

Bibliographic references : 1,5 p.

Collation : 11 fig., 5 tabl.



INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.1843

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2010
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