(Article of periodic en Anglais - 2011)

Document title

Relative importance of dust inputs and aquatic biological production as sources of lake sediments in an oligotrophic lake in a semi-arid area

Authors(s) and Affiliation(s)

OSEGUERA L.A. (1 2) ; ALCOCER J. (1) ; VILACLARA G. (1) ;
(1) Proyecto de Investigación en Limnología Tropical, FES Iztacala, UNAM, Tlalnepantla, MEXIQUE
(2) Programa de Posgrado en Ciencias del Mar y Limnología, UNAM, Tlalnepantla, MEXIQUE


The dustfall (DF) and mass sedimentation rate (MSR) in Lake Alchichica, Central Mexico, were studied from June 2006 to June 2008. As expected, the DF in Alchichica was high and similar to that found in other arid and semi-arid areas. However, the MSR was higher than that reported for other oligotrophic lakes. In spite of the oligotrophic status of Lake Alchichica, the large size of the settled phytoplankton (autochthonous, waterborne) is what leads to the high MSR, which surpasses the DF (allochthonous, airborne) derived from whirlwinds originating in easily eroded terrains that are characteristic of arid/semi-arid areas. The results indicate that caution must be taken in considering that the DF amount measured through DF collectors located at the lake shore does actually represent the DF entering into the lake


Article of periodic

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

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

Millesime : 2011, vol. 36, no3 [pp. 419-426]

Bibliographic references : 1 p.

Collation : 6 fig., 5 tabl.



INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.2062

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2011
Refdoc record number (ud4) : 24422216 : Permanent link - XML version
Powered by Pxxo