Tree-ring width measurements of Douglas fir from Otzweiler from 1925 to 2021
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Wood samples from Douglas fir trees were taken using an increment borer. From each tree two opposing increment cores were taken at breast height. The sampled trees stood in an...
采用树木生长锥（increment borer）采集花旗松（Douglas fir）的木材样本。从每株林木的胸高处采集两份相对的生长芯样。本次采样的林木生长于……
