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[48-1/68]제주도 하천의 중대가리나무 식생
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   08-제주도(1511).105733.pdf (513.9K) [44] DATE : 2015-04-07 18:55:18
There is no willow riparian vegetation in Jeju Island, Korea. Instead, a genetically-isolated
population of Adina rubella is found in some parts of the riparian system. We describe its syntaxonomy and
synecology. A total of 27 phytosociological relevés were collected, 11 relevés from 91 sites and 16 relevés
from the previously published relevant materials. Data were analyzed by traditional Braun-Blanquet method
and multivariate PCoA (Principal coordinates analysis). New syntaxa are distinguished, Adinion rubellae all.
nov. and its type association Tripogono-Adinetum rubellae ass. nov. with two subassociations, typicum and
rhododendretosum poukhanensae. Adino-Rhododendretum poukhanensae Itow et al. 1993 was discarded
owing to mismatch of syntaxonomy and syngeography of Adina and Rhododendron phytocoena. The alliance
Adinion is Jeju’s regional and partly ombrotrophic vegetation occurring in pothole and rock crevice where are
independent on ground-water table. We also suggest a revised alliance, Rhododendrion poukhanensae Lee
2004 ex. hoc loco in Korean peninsula, as a corresponding syntaxon to Adinion, which completely differs
from Phragmito-Salicion. Finally we pointed out that Adina phytocoena requiring an absolutely monitoring
has been threatened by river maintenance project of local government.