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Table 4 Bark char codes and description of bark appearance (adapted from Ryan 1982).

From: Using Bark Char Codes to Predict Post-fire Cambium Mortality

Bark char code

Bark appearance

Unburned

No char

Light

Evidence of light scorching; can still identify species based on bark characteristics; bark is not completely blackened; edges of bark plates charred

Moderate

Bark is uniformly black except possibly some inner fissures; species bark characteristics still discernable

Deep

Bark has been burned into, but not necessarily to the wood; outer bark species characteristics are lost