Tree-ring measurements of Picea mariana (Black spruce) from sample LACPEPMA-91
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Species PCMA; No of rings 134; Begin 1855; End 1988
物种PCMA(Species PCMA);环数(No of rings):134;起始年份(Begin):1855;终止年份(End):1988

Species PCMA; No of rings 134; Begin 1855; End 1988
物种PCMA(Species PCMA);环数(No of rings):134;起始年份(Begin):1855;终止年份(End):1988