Tree-ring measurements of Picea mariana (Black spruce) from sample LANAPMAT-461
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Species PCMA; No of rings 90; Begin 1899; End 1988
物种PCMA(Species PCMA);环数(No of rings)为90;起始年份为1899;终止年份为1988

Species PCMA; No of rings 90; Begin 1899; End 1988
物种PCMA(Species PCMA);环数(No of rings)为90;起始年份为1899;终止年份为1988