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Fig. 2. Characteristic semivariograms of selected soil and floc properties: (a) floc depth, (b) floc bulk density (BD), (c) soil total phosphorus (TP), (d) soil total calcium (TCa), (e) floc C to N ratio, and (f) floc total iron (TFe). Some properties were natural log transformed. Thick line, indicated with label M, represents the fitted variogram model; thinner line represents the experimental variogram and is indicated with the label D1. The unlabeled horizontal line represents the total sample variance. The distance (x axis) was measured in meters.
