DOI: 10.1002/2016GL068874
论文题名: Simulating soil organic carbon in yedoma deposits during the Last Glacial Maximum in a land surface model
作者: Zhu D. ; Peng S. ; Ciais P. ; Zech R. ; Krinner G. ; Zimov S. ; Grosse G.
刊名: Geophysical Research Letters
ISSN: 0094-9614
EISSN: 1944-9345
出版年: 2016
卷: 43, 期: 10 起始页码: 5133
结束页码: 5142
语种: 英语
英文关键词: frozen organic carbon
; Last Glacial Maximum
; yedoma
Scopus关键词: Budget control
; Deposits
; Glacial geology
; Surface measurement
; Global carbon cycle
; Land surface modeling
; Last deglaciation
; Last Glacial Maximum
; Organic-rich sediment
; Soil organic carbon
; Vertical distributions
; Yedoma
; Organic carbon
; carbon cycle
; land surface
; Last Glacial Maximum
; organic carbon
; parameterization
; permafrost
; sedimentation
; soil carbon
; vertical distribution
; Alaska
; Siberia
; United States
英文摘要: Substantial quantities of organic carbon (OC) are stored in the thick, ice-rich, and organic-rich sediments called yedoma deposits, distributed in eastern Siberia and Alaska today. Quantifying yedoma carbon stocks during the glacial period is important for understanding how much carbon could have been decomposed during the last deglaciation. Yet processes that yield the formation of thick frozen OC in yedoma deposits are missing in global carbon cycle models. Here we incorporate sedimentation parameterizations into the Organizing Carbon and Hydrology In Dynamic Ecosystems (ORCHIDEE-MICT) land surface model, which leads to reasonable results in OC vertical distribution and regional budgets, compared with site-specific observations and inventories for today's nondegraded yedoma region. Simulated total soil OC stock for the northern permafrost region during the Last Glacial Maximum (LGM) is 1536–1592 Pg C, of which 390–446 Pg C is within today's yedoma region. This result is an underestimation since we did not account for the potentially much larger yedoma area during the LGM than the present day. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84971350856&doi=10.1002%2f2016GL068874&partnerID=40&md5=256304a9037fe98c5c50dda04f513ce0
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10577
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Laboratoire des Sciences du Climat et de l'Environnement, LSCE CEA CNRS UVSQ, Gif Sur Yvette, France
Recommended Citation:
Zhu D.,Peng S.,Ciais P.,et al. Simulating soil organic carbon in yedoma deposits during the Last Glacial Maximum in a land surface model[J]. Geophysical Research Letters,2016-01-01,43(10).