title: Tropical/Subtropical Peatland Development and Global CH4 during the Last Glaciation.
abstract: Knowledge of peatland development over the tropical/subtropical zone during the last glaciation is critical for understanding the glacial global methane cycle. Here we present a well-dated 'peat deposit-lake sediment' alternate sequence at Tengchong, southwestern China, and discuss the peatland development and its linkage to the global glacial methane cycle. Peat layers were formed during the cold Marine Isotope Stage (MIS)-2 and -4, whereas lake sediments coincided with the relatively warm MIS-3, which is possibly related to the orbital/suborbital variations in both temperature and Asian summer monsoon intensity. The Tengchong peatland formation pattern is broadly synchronous with those over subtropical southern China and other tropical/subtropical areas, but it is clearly in contrast to those over the mid-high Northern Hemisphere. The results of this work suggest that the shifts of peatland development between the tropical/subtropical zone and mid-high Northern Hemisphere may have played important roles in the glacial/interglacial global atmospheric CH4 cycles.
authors.affiliation: State key Laboratory of Loess and Quaternary Geology, institute of Earth Environment, Chinese Academy of Sciences. Xi'an, China.|Department of Environment Science and Technology, School of Human Settlements and Civil Engineering, Xi'an Jiaotong University, Xi'an, China.
authors.forename: Hai
authors.initials: H
authors.lastname: Xu
authors.affiliation: State key Laboratory of Loess and Quaternary Geology, institute of Earth Environment, Chinese Academy of Sciences. Xi'an, China.
authors.forename: Jianghu
authors.initials: J
authors.lastname: Lan
authors.affiliation: State key Laboratory of Loess and Quaternary Geology, institute of Earth Environment, Chinese Academy of Sciences. Xi'an, China.
authors.forename: Enguo
authors.initials: E
authors.lastname: Sheng
authors.affiliation: College of Tourism and Geographical Sciences, Yunnan Normal University, Kunming, China.
authors.forename: Yong
authors.initials: Y
authors.lastname: Liu
authors.affiliation: State key Laboratory of Loess and Quaternary Geology, institute of Earth Environment, Chinese Academy of Sciences. Xi'an, China.
authors.forename: Bin
authors.initials: B
authors.lastname: Liu
authors.affiliation: State key Laboratory of Loess and Quaternary Geology, institute of Earth Environment, Chinese Academy of Sciences. Xi'an, China.|Graduate university of Chinese Academy of Sciences. Beijing, China.
authors.forename: Keke
authors.initials: K
authors.lastname: Yu
authors.affiliation: State key Laboratory of Loess and Quaternary Geology, institute of Earth Environment, Chinese Academy of Sciences. Xi'an, China.|Graduate university of Chinese Academy of Sciences. Beijing, China.
authors.forename: Yuanda
authors.initials: Y
authors.lastname: Ye
authors.affiliation: State key Laboratory of Loess and Quaternary Geology, institute of Earth Environment, Chinese Academy of Sciences. Xi'an, China.
authors.forename: Peng
authors.initials: P
authors.lastname: Cheng
authors.affiliation: State key Laboratory of Loess and Quaternary Geology, institute of Earth Environment, Chinese Academy of Sciences. Xi'an, China.
authors.forename: Xiaoke
authors.initials: X
authors.lastname: Qiang
authors.affiliation: State key Laboratory of Loess and Quaternary Geology, institute of Earth Environment, Chinese Academy of Sciences. Xi'an, China.
authors.forename: Fengyan
authors.initials: F
authors.lastname: Lu
authors.affiliation: State key Laboratory of Loess and Quaternary Geology, institute of Earth Environment, Chinese Academy of Sciences. Xi'an, China.
authors.forename: Xulong
authors.initials: X
authors.lastname: Wang