Figure 2. Importance value of major species in vegetation unit.

Stratum Species Vegetation unit(based on species composition)
VU1 VU2 VU3 VU4 VU5 VU6 VU7 VU8 VU9 VU10 VU11
Tree Quercus mongolica (신갈나무) 2.7 8.6 - 11.1 16.7 83.3 - 36.4 30.0 42.6 80.0
Pinus densiflora (소나무) - 1.4 8.3 3.7 - 8.3 100.0 63.6 22.0 32.8 -
Cornus controversa (층층나무) 21.6 15.7 - - 13.3 - - - 2.0 1.6 -
Acer pictum subsp. mono (고로쇠나무) 13.5 10.0 8.3 7.4 16.7 - - - 2.0 - -
Ulmus davidiana var. japonica (느릅나무) 13.5 14.3 - 3.7 13.3 - - - - - -
Fraxinus rhynchophylla (물푸레나무) 2.7 11.4 16.7 7.4 13.3 - - - - 1.6 10.0
Quercus variabilis (굴참나무) - - - 3.7 - - - - 32.0 - -
Larix kaempferi (일본잎갈나무) - 1.4 50.0 - - - - - - 6.6 -
Betula davurica (물박달나무) 2.7 2.9 - 7.4 - 8.3 - - 6.0 - 10.0
Pinus koraiensis (잣나무) - - - 25.9 - - - - - 1.6 -
Acer mandshuricum (복장나무) 13.5 - - - - - - - - - -
Others(23 taxa) 29.7 34.3 16.7 29.6 26.7 - - - 6.0 13.1 0.0
Subtree Quercus mongolica (신갈나무) - 6.1 5.0 12.5 8.3 38.5 60.0 54.5 25.0 47.5 50.0
Styrax obassia (쪽동백나무) 8.1 1.5 10.0 4.2 16.7 - - - 18.2 10.2 20.0
Acer pictum subsp. mono (고로쇠나무) 8.1 16.7 5.0 8.3 16.7 7.7 - - 2.3 - -
Fraxinus rhynchophylla (물푸레나무) 2.7 7.6 20.0 8.3 8.3 30.8 - - 4.5 3.4 -
Morus bombycis (산뽕나무) 10.8 7.6 20.0 20.8 13.9 - - - - - -
Acer pseudosieboldianum (당단풍나무) 13.5 7.6 5.0 4.2 5.6 7.7 - 9.1 2.3 6.8 10.0
Actinidia arguta (다래) 8.1 10.6 10.0 8.3 5.6 7.7 - - - 3.4 -
Fraxinus sieboldiana (쇠물푸레나무) - - - - - - 20.0 36.4 6.8 13.6 -
Cornus controversa (층층나무) 2.7 15.2 10.0 4.2 8.3 - - - - - -
Ulmus davidiana var. japonica (느릅나무) 2.7 7.6 - 8.3 8.3 - - - - - -
Pinus koraiensis (잣나무) - 1.5 - 16.7 - - - - 6.8 1.7 -
Quercus variabilis (굴참나무) - - - - - - - - 18.2 - -
Betula davurica (물박달나무) - - 5.0 - 2.8 - - - 6.8 1.7 10.0
Carpinus cordata (까치박달) 13.5 - - - - - - - - - -
Acer mandshuricum (복장나무) 13.5 - - - - - - - - - -
Others(21 taxa) 16.2 18.2 10.0 4.2 5.6 7.7 20.0 - 9.1 11.9 10.0
Shrub Lindera obtusiloba (생강나무) 5.9 7.0 10.3 6.7 8.2 2.2 - 5.6 14.9 7.7 3.0
Rhododendron schlippenbachii (철쭉) 3.9 0.9 - - 2.7 4.4 12.5 19.4 9.2 13.9 -
Lespedeza maximowiczii (조록싸리) - 2.6 5.1 5.0 2.7 17.8 - 2.8 6.9 8.2 18.2
Quercus mongolica (신갈나무) - 1.8 2.6 5.0 - 15.6 12.5 8.3 3.4 8.8 15.2
Styrax obassia (쪽동백나무) 3.9 3.5 10.3 5.0 5.5 - 10.0 - 11.5 6.2 6.1
Philadelphus schrenkii (고광나무) 11.8 12.3 10.3 10.0 11.0 - - - - 1.0 -
Acer pseudosieboldianum (당단풍나무) 7.8 4.4 5.1 3.3 1.4 4.4 2.5 8.3 6.9 4.1 3.0
Rhododendron mucronulatum (진달래) - - - - - - 12.5 19.4 8.0 8.2 -
Fraxinus rhynchophylla (물푸레나무) - 2.6 5.1 3.3 1.4 11.1 - 2.8 4.6 6.7 9.1
Fraxinus sieboldiana (쇠물푸레나무) - - - 1.7 - - 15.0 13.9 5.7 8.8 -
Symplocos chinensis f. pilosa (노린재나무) - 2.6 2.6 5.0 - 13.3 - - 3.4 5.7 18.2
Rhus trichocarpa (개옻나무) 2.0 0.9 - 5.0 - - 10.0 13.9 8.0 3.1 -
Staphylea bumalda (고추나무) 5.9 6.1 12.8 8.3 5.5 - - - - - -
Acer pictum subsp. mono (고로쇠나무) 7.8 4.4 5.1 3.3 8.2 2.2 - - 1.1 - -
Rhododendron micranthum (꼬리진달래) - - - - - - 15.0 - 1.1 - -
Parthenocissus tricuspidata (담쟁이덩굴) - - 5.1 - 2.7 - - - - - -
Others(20 taxa) 51.0 50.9 25.7 38.3 50.7 28.9 10.0 5.6 14.9 17.5 27.3
Herb Carex humilis var. nana (가는잎그늘사초) 0.6 1.3 2.1 0.5 2.1 0.3 8.6 5.5 4.9 3.0 1.0
Quercus mongolica (신갈나무) 0.6 0.3 0.5 1.0 0.3 1.8 5.7 4.4 4.9 3.7 3.1
Calamagrostis arundinacea (실새풀) 1.3 1.0 1.5 0.5 1.5 2.1 1.4 5.5 2.6 3.4 3.1
Carex siderosticta (대사초) 1.3 2.0 1.0 - 0.3 2.4 1.4 3.3 1.9 3.4 3.1
Polygonatum odoratum var. pluriflorum (둥굴레) - 1.0 0.5 0.5 0.9 2.4 5.7 5.5 3.0 2.3 3.1
Lindera obtusiloba (생강나무) 0.6 0.8 1.0 3.4 1.2 0.3 4.3 4.4 5.6 2.2 0.5
Isodon inflexus (산박하) 1.3 1.8 2.6 1.5 2.7 2.4 - - 1.5 1.6 2.6
Disporum smilacinum (애기나리) 0.6 1.0 0.5 1.0 0.9 1.2 2.9 2.2 3.0 3.0 2.6
Athyrium niponicum (개고사리) 0.6 1.3 2.1 2.4 2.7 1.8 - - 0.4 2.2 2.1
Smilax nipponica (선밀나물) - 0.5 - 1.0 - 2.1 - 1.1 4.1 2.4 3.6
Lespedeza maximowiczii (조록싸리) - 0.8 1.0 0.5 0.3 1.5 - 1.1 3.0 2.7 3.6
Artemisia stolonifera (넓은잎외잎쑥) - 1.0 0.5 0.5 0.3 2.7 - - 0.7 2.2 2.6
Rhododendron schlippenbachii (철쭉) 0.6 - - - - - 5.7 7.7 2.2 2.0 -
Cimicifuga heracleifolia (승마) 4.4 2.3 0.5 1.5 1.8 0.3 - - 0.4 0.1 -
Hydrangea serrata f. acuminata (산수국) 4.4 3.3 0.5 0.5 0.9 - - - - - -
Parthenocissus tricuspidata (담쟁이덩굴) - 0.3 2.6 1.9 0.9 - - - - 0.1 -
Phlomis umbrosa (속단) 0.6 0.8 - - - 2.7 - - - - -
Others(257 taxa) 83.0 80.5 83.0 83.5 83.0 76.2 64.3 59.3 61.9 65.6 68.8
Total 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0