Foliar Litter Decomposition: A Conceptual Model with Focus on Pine (Pinus) Litter—A Genus with Global Distribution

Figure 18

Data from 7 tree species trials in Denmark [37] and 3 in England [38]. Each of the studies reported a carefully determined amount of soil organic matter on top of the mineral soil in monocultural stands, “primary sequestration” [46]. Data were combined to analyse and determine the variation among genera [34]. The full line underlining genus names gives C accumulation rates that are not significantly different. Ash was subtracted and 50% C was assumed for the organic matter of Ovington’s study [38]. Compiled data and figure are from [34].