Long-Term Impact Evaluation of Ground-Base Skidding on Residual Damaged Trees in the Hyrcanian Forest, Iran

Table 4

Distribution of damaged trees based on location of wound on trees’ stems.

Age class	1–5 yr			5–10 yr			10–15 yr			15–20 yr			**DC%
Traffic intensity	*L	*M	*H	L	M	H	L	M	H	L	M	H
DC1	0	2	2	0	0	0	0	0	2	0	0	2	4.62 [d]
DC2	10	7	6	3	9	7	6	14	9	11	3	7	53.75 [a]
DC3	4	4	12	5	3	5	6	7	5	2	3	4	34.10 [b]
DC4	1	0	1	2	2	3	1	1	1	0	0	1	7.51 [c]

*L, M, and H abbreviations are low, medium and high traffic intensity at all tables.
**Percent of damage code has been calculated by divide number of damaged trees in each code to all damaged trees in each skid trail, regardless of traffic intensity and age skid trail at all tables.