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Spatio-temporal analysis of factors controlling nitrate dynamics and potential denitrification hot spots and hot moments in groundwater of an alluvial floodplain

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Academic year: 2021

Partager "Spatio-temporal analysis of factors controlling nitrate dynamics and potential denitrification hot spots and hot moments in groundwater of an alluvial floodplain"

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Fig. 2. Water discharge (red) and rain (blue) in the study area. Arrows and num- num-bers indicate sampling periods (simple arrows for regular sampling campaigns and double arrows with bold numbers for full campaigns)
Fig. 3. Groundwater level in the study area and groundwater flowpaths from two locations in the meander (one in the north, A, and one in the south, B) observed in the four full campaigns (1, 4, 7, and 10).
Fig. 4. Maps of interpolated (IDW) nitrate concentrations and of the scores of the first (comp1) and second components (comp2) of the PLSR performed on NO 3 − for the four full sampling campaigns.
Fig. 5. Maps of interpolated (IDW) denitrifying enzyme activity (DEA) for the four full campaigns.
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