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Understanding nitrogen transfer dynamics in a small agricultural catchment: Comparison of a distributed (TNT2) and a semi distributed (SWAT) modeling approaches

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Academic year: 2021

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Fig. 2 show the daily concentration for days when there is mea- mea-surement. The water yield varied during the study period (Table 2).
Fig. 2. Daily discharge (m 3 s 1 ), rainfall (mm), N concentration (mg, N—NO  3 L 1 ) measured in Montoussé river, at the outlet of auradé basin
Fig. 3. Spatial data used in TNT2 and SWAT: soil map with 14 soil types (12 agricultural soil types, 1 for urban area and 1 for forest), DEM (5  5 m), agricultural plot map (92 agricultural plots)
Table 4 gives the magnitude of each main processes of produc- produc-tion and consumpproduc-tion of mineral N in the catchment
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