Tree-ring measurements of Picea mariana (Black spruce) from sample WILLOUFE-501
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Species PCMA; No of rings 57; Begin 1932; End 1988
物种PCMA(Species PCMA);环数为57;起始年份1932;终止年份1988

Species PCMA; No of rings 57; Begin 1932; End 1988
物种PCMA(Species PCMA);环数为57;起始年份1932;终止年份1988