Tree-ring measurements of Picea mariana (Black spruce) from sample WILLOPLA-101
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Species PCMA; No of rings 145; Begin 1844; End 1988
物种:PCMA;年轮数目(No. of Rings):145;起始年份:1844;终止年份:1988

Species PCMA; No of rings 145; Begin 1844; End 1988
物种:PCMA;年轮数目(No. of Rings):145;起始年份:1844;终止年份:1988