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Fig. 4


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Variation spatio-temporelle du pH (C), de l'O2 dissous (D), du CO2 dissous (E), des nitrates (F) et de l'oxydabilité au permanganate (G) pendant la période d'étude.

Spatio-temporal variation of pH (C), dissolved O2 (D), dissolved CO2 (E), nitrates (F) and oxydability (G) during the study period.

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