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tree census, Long-term permanent plot No.843715, Selection Cutting Examination Forest No.15 (compartment 142), Nakagawa Experimental Forest, Hokkaido, tree census in 1989
tree census, Long-term permanent plot No.843715, Selection Cutting Examination Forest No.15 (compartment 142), Nakagawa Experimental Forest, Hokkaido, tree census in 1994
tree census, Long-term permanent plot No.843715, Selection Cutting Examination Forest No.15 (compartment 142), Nakagawa Experimental Forest, Hokkaido, tree census in 1999
tree census, Long-term permanent plot No.853716, Selection Cutting Examination Forest No.16 (compartment 228), Nakagawa Experimental Forest, Hokkaido, tree census in 1985
tree census, Long-term permanent plot No.853716, Selection Cutting Examination Forest No.16 (compartment 228), Nakagawa Experimental Forest, Hokkaido, tree census in 1990
tree census, Long-term permanent plot No.853716, Selection Cutting Examination Forest No.16 (compartment 228), Nakagawa Experimental Forest, Hokkaido, tree census in 1995
Tree census, Long-term permanent plot No.20, "20-sen Gunjou-Takubatu ti 5", Teshio Experimental Forest 236, Hokkaido, Japan, from 1991.
tree census, Long-term permanent plot No.853716, Selection Cutting Examination Forest No.16 (compartment 228), Nakagawa Experimental Forest, Hokkaido, tree census in 2000
tree census, Long-term permanent plot No.853716, Selection Cutting Examination Forest No.16 (compartment 228), Nakagawa Experimental Forest, Hokkaido, tree census in 2010
tree census, Long-term permanent plot No.863717, Selection Cutting Examination Forest No.17 (compartment 173), Nakagawa Experimental Forest, Hokkaido, tree census in 1986