Table 3. Mean relative importance value (MIV) of major species for 15 vegetation types classified in the study area. Roman numerals (I, II) coincide with those in Table 1.

Species	Vegetation type codes																	Total
	V01	V02	V03	V04	V05	V06	V07	V08	I	V09	V10	V11	V12	V13	V14	V15	II
Pinus densiflora	36.1	15.9	30.7	3.0	5.2	4.0	3.5	-	20.3	0.6	1.9	-	-	-	-	-	0.5	15.5
Quercus mongolica	5.8	7.9	19.9	16.3	13.5	8.1	3.3	0.7	13.3	5.2	12.6	3.2	6.8	6.9	1.0	0.3	6.4	11.4
Larix kaempferi	0.0	6.1	0.8	-	23.0	12.4	25.1	39.1	8.4	-	-	-	-	-	-	-	-	6.4
Pinus koraiensis	0.5	5.6	3.4	14.9	7.0	0.2	5.8	0.0	4.1	9.0	24.4	15.9	2.4	5.6	-	15.8	12.3	6.2
Acer pseudosieboldianum	0.5	0.2	3.3	5.5	3.1	7.7	0.9	2.0	2.7	3.7	2.8	4.2	10.6	1.5	0.1	-	4.4	3.2
Abies koreana	-	-	0.4	16.1	0.8	1.0	-	-	0.9	21.6	-	0.1	9.2	-	-	-	8.8	2.8
Fraxinus sieboldiana	0.8	1.1	6.1	4.4	0.6	-	0.7	0.1	3.2	1.9	0.3	0.4	5.1	-	-	-	1.5	2.7
Abies nephrolepis	0.6	-	0.3	-	-	-	-	-	0.2	-	21.2	10.4	-	51.5	68.6	24.6	9.5	2.6
Betula ermanii	-	-	0.2	-	0.0	1.3	-	-	0.1	10.8	7.5	6.6	1.1	10.0	2.5	0.3	7.5	2.2
Rhododendron schlippenbachii	0.1	0.5	4.3	3.6	0.5	0.4	-	0.1	2.2	3.6	2.6	1.2	0.1	0.2	0.0	0.1	1.9	2.1
Cornus controversa	3.9	0.3	0.6	0.4	6.7	3.5	12.0	1.2	2.7	0.1	-	0.6	1.3	-	-	-	0.4	2.1
Fraxinus rhynchophylla	1.5	0.8	1.6	-	7.6	2.0	6.1	5.0	2.8	0.2	0.4	-	-	-	-	-	0.1	2.0
Taxus cuspidata	-	-	-	2.2	-	-	-	-	0.1	0.8	0.8	11.8	17.9	-	-	-	6.1	1.6
Sorbus commixta	-	-	0.1	-	0.1	1.8	-	0.4	0.2	4.3	5.1	6.6	0.4	3.8	0.4	3.7	4.5	1.4
Acer komarovii	-	-	0.0	0.0	0.1	0.1	-	0.1	0.0	5.3	1.9	5.0	7.9	0.2	0.4	-	4.3	1.3
Quercus serrata	1.6	6.0	1.4	0.7	0.3	-	1.0	3.9	1.7	-	-	-	-	-	-	-	-	1.2
Castanea crenata	8.3	4.1	0.0	-	-	-	1.5	2.0	1.6	-	-	-	-	-	-	-	-	1.1
Picea jezoensis	0.0	-	-	-	-	-	-	-	0.0	13.4	-	-	-	-	-	-	4.6	1.1
Pinus rigida	1.3	7.0	0.6	-	-	-	-	-	1.4	-	-	-	-	-	-	-	-	1.0
Tilia amurensis	0.7	0.3	0.7	1.8	0.9	2.3	0.4	-	0.7	1.1	0.0	2.2	1.0	-	-	15.4	1.2	0.9
Abies holophylla	0.1	-	0.9	0.9	0.0	13.2	-	0.0	1.1	0.4	-	-	0.3	-	-	-	0.2	0.8
Acer pictum var. mono	-	-	0.2	0.1	1.1	6.4	0.8	2.1	0.7	0.3	-	0.1	3.7	-	-	-	0.7	0.7
Sasa borealis	0.0	0.0	0.8	4.9	0.3	0.7	0.0	1.3	0.6	0.4	-	0.0	2.4	-	-	-	0.4	0.5
Lindera erythrocarpa	3.7	0.8	0.2	-	-	-	1.3	2.1	0.7	-	-	-	-	-	-	-	-	0.5
Morus australis	0.9	0.2	0.0	-	1.2	0.3	4.5	2.5	0.7	0.0	-	-	-	-	-	-	0.0	0.5
Rhododendron mucronulatum var. ciliatum	-	-	0.0	0.2	-	-	-	-	0.0	1.0	1.8	-	-	4.5	4.2	6.9	1.3	0.4
Ulmus davidiana var. japonica	-	0.0	0.1	-	0.3	0.1	1.7	3.3	0.4	-	-	0.1	-	-	-	-	0.0	0.3
Thuja koraiensis	-	-	-	-	-	-	-	-	-	-	0.7	0.2	-	0.4	0.7	21.9	0.7	0.2
Pinus pumila	-	-	-	-	-	-	-	-	-	-	-	-	-	-	8.6	2.2	0.5	0.2
Weigela florida	-	-	0.0	0.0	0.0	-	0.0	-	0.0	0.6	0.1	0.2	-	0.6	1.3	0.4	0.3	0.1
Others	33.5	43.2	23.4	24.8	27.6	34.4	31.6	33.9	29.1	15.8	15.9	31.2	30.0	14.8	12.2	8.5	21.5	26.8