Tree-ring measurements of Picea mariana (Black spruce) from sample CAPOTPMA-121
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Species PCMA; No of rings 156; Begin 1833; End 1988
物种PCMA;环数156;起始年份1833;结束年份1988

Species PCMA; No of rings 156; Begin 1833; End 1988
物种PCMA;环数156;起始年份1833;结束年份1988