Tree-ring measurements of Picea mariana (Black spruce) from sample ESKERPMA-41
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Species PCMA; No of rings 110; Begin 1874; End 1983
物种PCMA(Species PCMA);年轮数:110;起始年份:1874;终止年份:1983

Species PCMA; No of rings 110; Begin 1874; End 1983
物种PCMA(Species PCMA);年轮数:110;起始年份:1874;终止年份:1983