413703.fig.005a
(a)
413703.fig.005b
(b)
413703.fig.005c
(c)
413703.fig.005d
(d)
Figure 5: Box plots of carbon flux (Mg/ha/yr) by 15-year stand age classes for (a) standing live trees, (b) standing dead trees, (c) coarse woody debris, and (d) fine woody debris across the north central United States, 2002 to 2007.