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

Table 2

Classification of damage, by location, size, severity, frequency, and distance from centerline of the skid trail imposed by logging operations.

Categories	DC1	DC2	DC3	DC4
Location of damage	Root	<100 cm	100–15 cm	>150 cm
Size of damage	≤100 cm^2	100–1000 cm^2	1000–2000 cm^2	≥2000 cm^2
Severity of damage	Minor	Moderate	Sever	Destroy
Frequency of wound	1	2-3	>3	—
Distance from centerline of the skid trail	1-2 m	2-3	>3 m	—