Tree-ring width of Quercus species from historical object sample IB20909-19
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Species QUSP; No of rings 45; Begin 1816; End 1860
物种QUSP;环数:45;起始年份:1816;终止年份:1860

Species QUSP; No of rings 45; Begin 1816; End 1860
物种QUSP;环数:45;起始年份:1816;终止年份:1860