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Nobuo ISHIHAMA
Forestry Research Institute, Hokkaido Research Organization
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Michiyasu YASAKA
Forestry Research Institute, Hokkaido Research Organization
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Yasuyuki OHNO
Forestry Research Institute, Hokkaido Research Organization
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Satoshi HASUI
Forestry Research Institute, Hokkaido Research Organization
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Masahiko NAKAGAWA
Doto Station, Forestry Research Institute, Hokkaido Research Organization
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Mika TAKIYA
Doto Station, Forestry Research Institute, Hokkaido Research Organization