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title: Evolutionary History of Atmospheric CO2 during the Late Cenozoic from Fossilized Metasequoia Needles
author: Wang, Yuqing;  Momohara, Arata;  Wang, Li;  Lebreton-Anberree, Julie;  Zhou, Zhekun
Issued Date: 2015
Abstract: The change in ancient atmospheric CO2 concentrations provides important clues for understanding the relationship between the atmospheric CO2 concentration and global temperature. However, the lack of CO2 evolution curves estimated from a single terrestrial proxy prevents the understanding of climatic and environmental impacts due to variations in data. Thus, based on the stomatal index of fossilized Metasequoia needles, we reconstructed a history of atmospheric CO2 concentrations from middle Miocene to late Early Pleistocene when the climate changed dramatically. According to this research, atmospheric CO2 concentration was stabile around 330-350 ppmv in the middle and late Miocene, then it decreased to 278-284 ppmv during the Late Pliocene and to 277-279 ppmv during the Early Pleistocene, which was almost the same range as in preindustrial time. According to former research, this is a time when global temperature decreased sharply. Our results also indicated that from middle Miocene to Pleistocene, global CO2 level decreased by more than 50 ppmv, which may suggest that CO2 decrease and temperature decrease are coupled.
Source: PLOS ONE
Related URLs: 10.1371/journal.pone.0130941
Appears in Collections:古生态研究组_期刊论文

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Recommended Citation:
Wang, Yuqing,Momohara, Arata,Wang, Li,et al. Evolutionary History Of Atmospheric Co2 During The Late Cenozoic From Fossilized Metasequoia Needles[J]. Plos One,2015,10(7):-.

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