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Predicting soil water and mineral nitrogen contents with the STICS model for estimating nitrate leaching under agricultural fields

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Academic year: 2021

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Fig. 1. Map of the study area showing (a) the location of the study area, (b) the floodplain limit, the four soil types defined and the piezometer locations, and (c) 2006 and (d) 2007 land use and locations of the monitored fields (indicated by numbers).
Fig. 2. Observed and simulated values of (a) soil water and (b) soil nitrogen content over a 1.2 m depth in the monitored fields.
Fig. 3. Temporal changes in observed and simulated gravimetric soil moisture and SMN for field 1 at different soil depths
Fig. 4. Simulated temporal changes (a and d) in drainage and cumulative drainage, (b and e) in nitrate-N leaching and cumulative N leaching, and (c and f) in instantaneous nitrate concentration in drainage water and flow weighted mean NO 3 − concentration i
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