Table 1. Stand characteristics of the experimental plots by species in this study.

Species	Statistics	Stand age (year)	Mean DBH (cm)	Quadratic mean diameter (cm)	Mean height (m)	No. of trees (trees/ha)	Site indexb) (m)
Pinus densiflora (na)=380)	Mean	48	24.8	25.6	14.4	740	17.9
	Std. Dev.	19	7.9	8.1	4.1	480	3.1
	Minimum	8	4.2	3.4	2.9	156	10.3
	Maximum	108	43.6	45.2	22.2	2928	31.0
Pinus koraiensis (n=414)	Mean	44	27.6	28.2	17.1	660	19.3
	Std. Dev.	16	8.2	8.3	4.3	381	1.7
	Minimum	15	9.5	9.8	5.3	185	15.3
	Maximum	86	48.0	48.2	26.8	2155	24.6
Larix kaempferi (n=484)	Mean	42	25.2	25.9	22.2	625	25.2
	Std. Dev.	13	6.4	6.5	4.6	298	2.8
	Minimum	19	10.4	10.6	7.6	170	15.8
	Maximum	69	46.4	46.5	32.2	1666	31.1

n is the number of observations at plot level.
Site index was estimated based on Lee and Choi (2022) with a base age of 40 years.