Smith L C, MacDonald G M, Velichko A A, Beilman D W, Borisova O K, Frey K E, Kremenetski K V, Sheng Y
Department of Geography, University of California, Los Angeles, CA 90095-1524, USA.
Science. 2004 Jan 16;303(5656):353-6. doi: 10.1126/science.1090553.
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 approximately 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.
来自冰芯的极间甲烷梯度（IPG）数据表明，全新世早期北半球一个主要甲烷源被“开启”。来自俄罗斯西西伯利亚低地的大量数据显示：（i）在11500至9000年前，泥炭地呈爆发式广泛形成，早于北美类似的发展过程，且与大气甲烷浓度增加和IPG同步；（ii）碳储量比之前认为的更大（70.2拍克，高达自末次盛冰期以来积累的所有陆地碳的约26%）；（iii）几乎没有灾难性氧化的证据，这表明自全新世早期以来，该地区是一个长期的二氧化碳汇和全球甲烷源。
