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Fig. 2. Distribution of concentrations of N species in samples from lysimeter sites and ground water sites. Gray boxes are shallow ground water samples. Black boxes are pore water samples collected from lysimeters. The points inside the boxes show the medians, the boxes show the interquartile ranges, and the whiskers show the total range. Locations C20, C21, N21, W20, W21, W23, and W24 have ground water wells with no lysimeters. All other locations have ground water wells and lysimeters.
