강원지역 마가목 천연집단의 생태적 특성

Forty eight sites were selected in four local areas of natural stands of Sorbus commixta for phytosociological study. Vegetation patterns of S. commixta community group were divided into Magnolia sieboldii community, Salix hallaisanensis community and Symplocos prunifolia community, and totally four vegetation units seemed to be accompanied. Among three vegetation types at the natural stands of S. commixta, Magnolia sieboldii community were sub-divided into two types; one was Sambucus williamsii var. coreana group characterized by the presence of Meehania uriticifolia, Adenophora remotiflora, Polystichum tripteron, Aconitum pseudo-laeve var. erectum and Impatiens nli-tangere, the other was Rhododendron brachycarpum group characterized by the presence of Lycopodium serratum, Thuja koraiensis and Saussurea conandrifolia. Sambucus williamsii var. coreana group can be sub￢divided into two types; one was Comus walteri subgroup characterized by Synurus deltoides, Aconitum longecassidatum and Actinidia arguta, the other was Sambucus williamsii var. coreana type subgroup.