Tree-ring measurements of Picea mariana (Black spruce) from sample KATH-121
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Species PCMA; No of rings 217; Begin 1767; End 1983
物种:PCMA;环数:217;起始年份:1767;终止年份:1983

Species PCMA; No of rings 217; Begin 1767; End 1983
物种:PCMA;环数:217;起始年份:1767;终止年份:1983