Tree-ring measurements of Picea mariana (Black spruce) from sample WILLOPLA-151
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Species PCMA; No of rings 97; Begin 1892; End 1988
物种PCMA(Species PCMA);年轮数:97;起始年份:1892;结束年份:1988

Species PCMA; No of rings 97; Begin 1892; End 1988
物种PCMA(Species PCMA);年轮数:97;起始年份:1892;结束年份:1988