Tree-ring measurements of Picea mariana (Black spruce) from sample ROMANPLA-251
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Species PCMA; No of rings 109; Begin 1880; End 1988
物种:PCMA;环数:109;起始年份:1880;终止年份:1988

Species PCMA; No of rings 109; Begin 1880; End 1988
物种:PCMA;环数:109;起始年份:1880;终止年份:1988