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*Yoko Hatano
Faculty of Agriculture,Kochi University
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Jun'ichi Gotou
Faculty of Agriculture,Kochi University
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Yasushi Suzuki
Faculty of Agriculture,Kochi University
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Hiroshi Yamashita
Forest Bureau of Kochi Prefecture
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Jirou Yoshii
Kochi Prefectual Forest Technology Center
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Hisashi Masaoka
Kochi Prefectual Forest Technology Center
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Takushi Itai
Kochi Prefectual Forest Technology Center