Tree-ring measurements of Picea mariana (Black spruce) from sample LACPEPMA-22
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Species PCMA; No of rings 114; Begin 1875; End 1988
物种PCMA;年轮数目为114;起始年份为1875;结束年份为1988

Species PCMA; No of rings 114; Begin 1875; End 1988
物种PCMA;年轮数目为114;起始年份为1875;结束年份为1988