Data/hora: 03/06/2024 19:04:41

Provedor de dados: | 5
País: | France
Título: | Does phosphate adsorption onto Saharan dust explain the unusual N/P ratio in the Mediterranean Sea?
Autores: | Ridame, C; Moutin, T; Guieu, C.
Data: | 2003-11
Ano: | 2003
Palavras-chave: | Poussières sahariennes; Adsorption; Phosphate; Rapport N/P; Méditerranée; Saharan dust; Adsorption; Phosphate; N/P ratio; Mediterranean Sea.
Resumo: | A Saharan soil, considered as a proxy for Saharan aerosols, was used to perform radio-labelled phosphate adsorption experiments using (33)PO(4)(3-): leached particles were exposed to poisoned western Mediterranean seawater for varying lengths of time. The measured adsorption capacity of Saharan dust for phosphate was 0.13 mumol g(-1). Considering this value and an annual Saharan dust deposition of 12.5 t km(-2) year(-1), we show that Saharan particles do not represent a significant sink for seawater phosphate in the western Mediterranean Sea. This result is in agreement with that determined from a similar approach conducted in the eastern basin. As a consequence, the unusual NIP ratio measured in the whole Mediterranean Sea (up to 29) cannot be explained by the adsorption process of seawater phosphate onto Saharan dust.
Tipo: | Text
Idioma: | Inglês

Identificador:

http://archimer.ifremer.fr/doc/00321/43254/42985.pdf

DOI:10.1016/S0399-1784(03)00061-6

http://archimer.ifremer.fr/doc/00321/43254/

Editor: | Gauthier-villars/editions Elsevier
Formato: | application/pdf
Fonte: | Oceanologica Acta (0399-1784) (Gauthier-villars/editions Elsevier), 2003-11 , Vol. 26 , N. 5-6 , P. 629-634

Fonte:

2003 Published by Éditions scientifiques et médicales Elsevier SAS

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