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(Article of periodic en Anglais - 2009)

Document title

The effect of shrub canopy upon surface temperatures and evaporation in the Negev Desert

Authors(s) and Affiliation(s)

KIDRON G.J. (1) ;
(1) Inst. of Earth Sciences, Hebrew Univ., Jerusalem, ISRAEL

Abstract

The AA. report on measurements of evaporation and temperatures that were carried out in and around a pair of shrubs at the Nizzana research site in the western Negev Desert during 1993-94 and during the growing season (November-March) of 1994-95 and 1996-1997. Whereas evaporation was measured monthly using mini-atmometers at an exposed site and under and around the shrub, temperature was measured under a shrub canopy, at its northern aspect, and at an exposed habitat. Except from the northern aspect, the under-canopy habitat showed substantially lower rates of evaporation in comparison with all other habitats. The differences between the under-canopy and the exposed habitat were larger during wintertime although higher differences in temperatures characterized both habitats in summertime. The results were explained by extended surface wetness that characterized the under-canopy habitat following rainstorms. The substantially lower evaporation rates that characterize the under-canopy habitat may thus play a pivotal role in providing preferential conditions for lush under-canopy annual growth

Source

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, no1 [pp. 123-132]

Bibliographic references : 1,5 p.

Collation : 10 fig., 2 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.1706

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2009
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