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Title :Comparison of community structure and growth between the alpine dwarf shrubs Rhododendron aureum and R. brachycarpum on the Yatsugatake range, central Japan
Title alternative :八ヶ岳連峰における高山矮性低木キバナシャクナゲとハクサンシャクナゲの群落構造と成長量の比較
Authors :Naganuma, Yoshihiro
Sakio, Hitoshi
Masuzawa, Takehiro
Publisher :森林立地学会
Issue Date :Dec-2006
Journal Title :森林立地
Volume :48
Issue :2
Start Page :77
End Page :84
ISSN :0388-8673
Abstract :Rhododendron aureum and R. brachycarpum are species of the Japanese alpine zone whose altitudinal zonation was determined by the last glacial stage. We compared the ecological features of the two species in a mixed community on the Yatsugatake range. A productive structure diagram showed that R. brachycarpum can absorb light efficiently by arranging its leaf mass in an upper layer and developing a more horizontal orientation of both the shoots and individual leaves in comparison with R. aureum. The C/F ratio for R. brachycarpum was 6. 52, and was almost the same value (5.99) in a mixed community. The ratio for R. aureum was lower (2.50) and decreased to 0.77 in a mixed community. Since R. aureum cannot gain sufficient light in a mixed community, its tree-ring width here was about half of that in a pure community, and there was also a decrease in the number of leaves. These results suggest that R. brachycarpum shows superior substance production in a mixed forest.
Type Local :学術雑誌論文
Language :und
Format :application/pdf
URI :http://hdl.handle.net/10191/25051
fullTextURL :http://dspace.lib.niigata-u.ac.jp/dspace/bitstream/10191/25051/1/110007088969.pdf
Relation :http://ci.nii.ac.jp/naid/110007088969
Rights :Copyright (C) 2006 森林立地学会 本文データは学協会の許諾に基づきCiNiiから複製したものである
Appears in Collections:10 査読済論文 = Postprint

Please use this identifier to cite or link to this item: http://hdl.handle.net/10191/25051