TD022

Attribute: CAUSE

code		description
BK		Beetle kill
C		Tree was cut down as in a thinning operation
F		Fire; could be based on record or fire scar (latter is less reliable)
O		Other form of mortality including unknown causes
RB		Road building
RT		Root throw
S		Standing
WB		Wind break, wind broke stem
WS		Windsnap; bole is broken off
WT		Wind throw with the root system tore out of ground