Table 7. DBH class distribution of major woody species of six communities by DCA

Community*	Species name	Shrub	< 2㎝	2-6㎝	7-11㎝	12-16㎝	17-21㎝	22-26㎝	27-31㎝	32-36㎝	37-41㎝	42-46㎝	47-51㎝	52㎝ >	Total
I	Pinus densiflora	4	0	1	1	7	34	42	57	48	24	8	3	5	234
	Quercus serrata	80	0	43	14	5	1	1	2	0	1	0	0	0	147
	Quercus mongolica	64	0	14	9	8	5	10	2	1	1	2	0	1	117
II	Quercus mongolica	40	0	7	1	3	6	10	12	4	2	5	2	1	93
	Pinus densiflora	0	0	0	0	1	4	3	2	1	0	2	0	0	13
	Quercus serrata	0	0	5	1	2	0	1	2	0	0	0	0	0	11
III	Quercus serrata	32	0	4	2	4	11	15	4	4	3	0	0	0	79
	Quercus mongolica	20	0	0	0	2	0	5	4	1	1	0	2	0	35
	Pinus densiflora	4	0	0	0	0	2	0	4	2	0	0	1	1	14
IV	Betula schmidtii	0	0	1	0	28	15	3	0	0	0	0	0	0	47
	Quercus serrata	4	0	2	0	1	0	0	0	0	0	0	0	0	7
	Sorbus alnifolia	0	0	2	2	0	0	0	0	0	0	0	0	0	4
V	Quercus acutissima	4	0	0	1	0	1	3	7	2	0	0	0	0	18
	Robinia pseudoacacia	8	0	2	3	2	2	2	2	2	0	0	0	0	23
	Quercus mongolica	32	0	3	2	0	1	0	0	0	0	0	0	0	38
VI	Pinus koraiensis	4	0	0	0	0	4	13	20	6	4	0	0	0	51
	Robinia pseudoacacia	16	0	4	0	0	0	0	0	1	1	0	0	0	22
	Quercus variabilis	0	0	0	0	0	2	0	0	1	0	0	0	0	3

Plant community names are referred from Table 6