期刊
SCIENCE
卷 303, 期 5656, 页码 353-356出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.1090553
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Interpolar methane gradient (IPG) data from ice cores suggest the switching on of a major Northern Hemisphere methane source in the early Holocene. Extensive data from Russia's West Siberian Lowland show (i) explosive, widespread peatland establishment between 11.5 and 9 thousand years ago, predating comparable development in North America and synchronous with increased atmospheric methane concentrations and IPGs, (ii) larger carbon stocks than previously thought (70.2 Petagrams, up to similar to 26% of all terrestrial carbon accumulated since the Last Glacial Maximum), and (iii) little evidence for catastrophic oxidation, suggesting the region represents a long-term carbon dioxide sink and global methane source since the early Holocene.
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