Fig. 1. Principal component analysis (PCA) score plots for the five organic matter pools from the Coastal Forest Chronosequence (CFC) plots: (a) fine woody debris (FWD), (b) forest floor (LFH), (c) forest floor roots (LFH-ROOT), (d) mineral soil fraction, 2 to 8 mm (MIN-ROOT), (e) mineral soil fraction, <2 mm (MIN-FLOAT).