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*Larry LOPEZ
Research Center for North Eurasia and North Pacific Regions, Hokkaido University, Sapporo 060-
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Hideyuki SAITO
Lab. of Silviculture, Graduate School of Agriculture, Hokkaido University, Sapporo
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Tetsuoh SHIROTA
Lab. of Silviculture, Graduate School of Agriculture, Hokkaido University, Sapporo
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Yoshikazu KOBAYASHI
Research Center for North Eurasia and North Pacific Regions, Hokkaido University, Sapporo 060-
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GO IWAHANA
Institute of Low Temperature Science, Hokkaido University, Sapporo 123-4567, Japan
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Kunihide TAKAHASHI
Lab. of Silviculture, Graduate School of Agriculture, Hokkaido University, Sapporo
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Ryusuke HATANO
Lab. of Soil Science,Graduate School of Agriculture, Hokkaido University, Sapporo, 060-8589, Japan
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Trofim MAXIMOV
Institute of Biological Problems of Cryolithozone, Russian Academy of Science, Yakutsk, Russia
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Masami FUKUDA
Institute of Low Temperature Science, Hokkaido University, Sapporo 123-4567, Japan