Tree-ring measurements of Picea mariana (Black spruce) from sample ESKERPMA-122
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Species PCMA; No of rings 118; Begin 1870; End 1987
物种:PCMA;年轮数量:118;起始年份:1870;结束年份:1987

Species PCMA; No of rings 118; Begin 1870; End 1987
物种:PCMA;年轮数量:118;起始年份:1870;结束年份:1987