Tree-ring width measurements of Douglas fir from Ragow-Merz from 1940 to 2022
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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）木材样本，每棵供试树木于胸高位置采集两枚相对的生长芯样，供试林木生长于……
