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Table 2 Depth distribution of charcoal in subtropical dry forest of Puerto Rico, USA, along the soil profile. Charcoal was sampled in December 2015 in the northeastern subtropical dry forest, and in December 2014 in the southeastern subtropical dry forest

From: Late Holocene fire history and charcoal decay in subtropical dry forests of Puerto Rico

Forest type Soil depth (cm) Charcoal mass (mg) Charcoal particles (n)
Northeastern subtropical dry forest 0 to 20 149.8 24
20 to 40 27.4 7
Southeastern subtropical dry forest 0 to 20 1102.2 467
20 to 40 4451.3 1195
40 to 60 41.3 14
60 to 80 117.5 16
80 to 100 137.7 33
100 to 120 4.9 5
120 to 140 8.3 4