Fig. 2. Carbon-13 cross-polarization with magic-angle spinning nuclear magnetic resonance (CPMAS NMR) spectra for selected fine woody debris (FWD) samples, illustrating variation along Principal Component (PC) 1. REG, regeneration, 3 to 8 yr; OG, old-growth, >200 yr. VWS, Victoria Watershed South; NIT, Nitinat; RGC, Red Granite Creek.