DF005

Attribute: REGCHAR

code		description
-1		Missing
0		No natural fire (or very little)
1		Infrequent light surface fires (>25 year interval)
2		Frequent light surface fires (1-25 year return intervals)
3		Infrequent, severe surface fires (>25 year return interval)
4		Short return interval crown fires (25-100 year return intervals)
5		Long return interval crown fires + severe surface fires (100-300 year return interval)
6		Very long return interval crown fires + severe surface fires (>300 year return intervals)