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Fig. 6. Total intraaggregate porosities among three concentric layers within whole aggregates from (A) Hoytville soils, 6.3 to 9.5 mm across, (B) Wooster soils, 4 to 6.3 mm across, and (C) Wooster soils, 6.3 to 9.5 mm across. Uppercase letters indicate significant differences among layers and lowercase letters indicate significant differences among management systems at P < 0.05. Bars designate the standard errors of three field replicates. CT, conventional tillage; NF, native forest; NT, no tillage.
