868090.fig.007a
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868090.fig.007b
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868090.fig.007c
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868090.fig.007d
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Figure 7: Plots of measured versus predicted values for clay (gkg−1) in the calibration (black symbol, ×) and validation (red symbol, +) data sets based on laboratory spectra. The respective calibration and validation data schemes ( / ) are marked on the plots. For further explanation see text.