气候变化领域集成服务门户(CCPortal): Sundaland Peat Carbon Dynamics and Its Contribution to the Holocene Atmospheric CO2 Concentration

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DOI	10.1002/2017GB005763
	Sundaland Peat Carbon Dynamics and Its Contribution to the Holocene Atmospheric CO2 Concentration
	Abrams J.F.; Hohn S.; Rixen T.; Merico A.
发表日期	2018
ISSN	0886-6236
EISSN	1944-9224
起始页码	704
结束页码	719
卷号	32 期号:4
英文摘要	The Sunda Shelf is a large submerged extension of the continental shelf of mainland Asia, joining the islands of Borneo, Java, and Sumatra and forming the shallow seabed of the South China Sea. Recent studies identified present-day peatlands in Southeast Asia as a globally important carbon reservoir. However, little is known about Sundaland paleopeatlands and their role in the global carbon cycle since the Last Glacial Maximum. Using a topography-based, sea level-driven model, we estimate the potential spatial extent of peatlands during the late Pleistocene and early Holocene across the low-lying Sundaland plains. We then use the estimated peatland area together with data on carbon accumulation rates to calculate the total peat carbon pool on the Sunda Shelf. Finally, using a global biogeochemical model, we analyze the relative influence of the predicted Sundaland peat dynamics and other carbon change mechanisms, specifically high-latitude forest growth and peat formation, shallow sea carbonate deposition, ocean warming, and combinations of them, on the global carbon cycle of the Holocene. We identify a feedback mechanism between sea level and peatland carbon sequestration in Sundaland that reduced atmospheric CO2 concentration by about 4–5 ppm and increased δ13C by 0.05‰ during the Holocene. We also show that a concurrence of mechanisms that includes Sundaland peat dynamics produces model results that are consistent with proxy records, especially with respect to δ13C. ©2018. American Geophysical Union. All Rights Reserved.
英文关键词	biogeochemical modeling; global carbon cycle; Holocene; Indonesia; sea level change; tropical peatland
语种	英语
scopus关键词	atmospheric gas; biogeochemical cycle; carbon cycle; carbon dioxide; concentration (composition); continental shelf; feedback mechanism; Holocene; Last Glacial Maximum; peatland; sea level change; tropical environment; Borneo; Greater Sunda Islands; Indonesia; Pacific Ocean; South China Sea; Southeast Asia; Sumatra; Sunda Isles; Sunda Shelf
来源期刊	Global Biogeochemical Cycles
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/129836
作者单位	Systems Ecology, Leibniz Centre for Tropical Marine Research (ZMT), Bremen, Germany; Faculty of Physics and Earth Sciences, Jacobs University Bremen, Bremen, Germany; Leibniz Institute for Zoo and Wildlife Research, Berlin, Germany; Carbon and Nutrient Cycling, Leibniz Centre for Tropical Marine Research (ZMT), Bremen, Germany; Institute of Geology, University of Hamburg, Hamburg, Germany
推荐引用方式 GB/T 7714	Abrams J.F.,Hohn S.,Rixen T.,et al. Sundaland Peat Carbon Dynamics and Its Contribution to the Holocene Atmospheric CO2 Concentration[J],2018,32(4).
APA	Abrams J.F.,Hohn S.,Rixen T.,&Merico A..(2018).Sundaland Peat Carbon Dynamics and Its Contribution to the Holocene Atmospheric CO2 Concentration.Global Biogeochemical Cycles,32(4).
MLA	Abrams J.F.,et al."Sundaland Peat Carbon Dynamics and Its Contribution to the Holocene Atmospheric CO2 Concentration".Global Biogeochemical Cycles 32.4(2018).