Fig. 3
From: Late Holocene fire history and charcoal decay in subtropical dry forests of Puerto Rico
The weight loss of the heaviest two charcoal samples as a function of (a) 200-year age classes in the northeastern subtropical dry forest, and (b) 1000-year age classes in the southeastern subtropical dry forest in Puerto Rico, USA. Diamond (♦) indicates the weight of the heaviest charcoal sample (two in each age class); the line is the decay curve of soil charcoal over time. Charcoal was sampled in December 2015 in the northeastern subtropical dry forest, and in December 2014 in the southeastern subtropical dry forest