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Elemental and isotopic composition of river water during a flood event in agricultural watershed: insight of sources and pathways of water and terrestrial derived matter

Teisserenc, Roman and El Azzi, Désirée and Moussa, Issam and Lambs, Luc and Guiresse, Agnès Maritchù and Probst, Jean-Luc Elemental and isotopic composition of river water during a flood event in agricultural watershed: insight of sources and pathways of water and terrestrial derived matter. In: Joint European Stable Users Group Meeting 2012 (JESIUM), 2 - 7 September 2012, Liepzig - Germany . (Unpublished)

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Abstract

Flood event in agricultural watershed represents 64% of water discharge but up to 71% of dissolved organic carbon and 94 of total suspended matter export. It therefore constitutes a key period to assess change in surface water contamination and quality. While during base flow conditions most of river discharge is supported by groundwater input, during storm period surface and subsurface runoffs contribute to river flow. Integration of water pathway complexity and spatial heterogeneity of contaminant inputs in the watershed need to be assessed by biogeochemical proxy measured at watershed outlet in the main river channel.

Item Type:Conference or Workshop Item (Poster)
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
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Deposited By: Jean-luc PROBST
Deposited On:28 Feb 2013 13:18

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