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在对敦化吉祥泥炭剖面的Na、K、Mg、Ca、Fe、Cr、Mn、Sr、Ba和Pb等元素进行分析的基础上,采用Morlet一维连续小波分析其时频变化,将剖面晚全新世以来的古气候过程分为6个阶段:公元前730年前的温暖降温期;公元前730年~公元前205年的温和湿润期;公元前205年~公元255年早期温暖湿润,之后变凉干;公元255年~公元525年气候寒冷时期;公元525年~1220年的温暖湿润时期;以及公元1220年~现在的气候波动频繁阶段。为本区泥炭古气候重建及综合对比分析提供了重要的基础素材。
Based on the analysis of elements such as Na, K, Mg, Ca, Fe, Cr, Mn, Sr, Ba and Pb in Dunhua auspicious peat profile, the Morlet one-dimensional continuous wavelet analysis is used to analyze the time- The paleoclimate process since the world was divided into six stages: a warm and cool period before 730 BC; a mild and humid period between 730 BC and 205 BC; a warm and humid period between 205 BC and 255 AD early Cool dry; AD 255 ~ 525 AD climate cold period; AD 525-1220 years of warm and humid period; and AD 1220 ~ now the frequent climate fluctuations. This area provides an important basic material for the reconstruction of peat paleoclimate and comprehensive comparative analysis.