Tree-ring measurements of Picea sitchensis (Sitka spruce) from sample NING-122
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Species PCSI; No of rings 182; Begin 1802; End 1983
物种PCSI(Species PCSI);年轮数182;起始年份1802;结束年份1983

Species PCSI; No of rings 182; Begin 1802; End 1983
物种PCSI(Species PCSI);年轮数182;起始年份1802;结束年份1983