Tree-ring measurements of Picea mariana (Black spruce) from sample WILLOPLA-102
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Species PCMA; No of rings 122; Begin 1843; End 1964
物种PCMA;年轮数量:122;起始年份:1843;结束年份:1964

Species PCMA; No of rings 122; Begin 1843; End 1964
物种PCMA;年轮数量:122;起始年份:1843;结束年份:1964