gcb2657-sup-0001-TableS1.docWord document57KTable S1. SOC densities (mg C g−1 soil) for the 0.0–0.05 and 0.0–0.30 m depth intervals at two sampling locations across the transect.
gcb2657-sup-0002-TableS2.docxWord document17KTable S2. SOC stocks (Mg C ha−1) for the different soil depths across the transect.
gcb2657-sup-0003-TableS3.docxWord document15KTable S3. Proportion of soil mass (w/w) attributed to the fraction > 2 mm separated in gravel and roots, over the whole bulk soil for the 0.0–0.05 and 0.0–0.30 m depth intervals. Relative differences in SOC stocks (%) are calculated using whole soil samples compared to the classical approach that makes use of the < 2 mm fraction only. Results are shown for calculations made using gravel alone and gravel and roots fractions combined.

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