Foliar Litter Decomposition: A Conceptual Model with Focus on Pine (Pinus) Litter—A Genus with Global Distribution
Figure 3
Relationship between concentrations of N and P in pine (Pinus) species needle litter, collected in stands over Europe, Asia, and North America. The data encompasses 22 pine species. B. Berg, unpublished. Data from [7, 48] and the DELILA database; http://www.eko.uj.edu.pl/deco/.