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. 2014 Jan 20;9(1):e84988. doi: 10.1371/journal.pone.0084988

Figure 3. Total soil organic C (SOC), fine C (<53 µm), and particulate organic C (POC) (53–2000 µm) concentrations on a sand-free basis from 0–5 cm in four different aggregate size fractions (mean ±1 SE) in the Horseshoe Bend Agroecosystem Experiment (n = 4) Athens, GA, USA, October 2007.

Figure 3

Different uppercase letters within an aggregate size class and C fraction represent a significant difference between land uses. Different lowercase letters within a C fraction and a land use represent a significant difference among aggregates size classes (α = 0.05). See also Table S3, part 1 and Table S3, part 2.