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DOI	10.1016/j.palaeo.2020.110016
	Decline of soil respiration in northeastern Tibet through the transition into the Oligocene icehouse
	Licht A.; Dupont-Nivet G.; Meijer N.; Caves Rugenstein J.; Schauer A.; Fiebig J.; Mulch A.; Hoorn C.; Barbolini N.; Guo Z.
发表日期	2020
ISSN	0031-0182
卷号	560
英文摘要	Soil respiration (Rs), the production of carbon dioxide in soils, increases dramatically from deserts to forested ecosystems. Rs values thus provide a potential tool to identify past ecosystems if recorded in sedimentary archives. Here, we propose a quantitative method to reconstruct past Rs values from paleosols. This method reverses the soil paleobarometer, a proxy that estimates past atmospheric CO2 concentration values (CO2atm) from paleosols while considering a narrow range of variation for Rs. We use past CO2atm values from marine proxies to reconstruct soil respiration from a 20 million year-long isotopic record from northeastern Tibet covering the transition from the Eocene greenhouse to the Oligocene icehouse. We show that Rs dropped at least 4-fold through the transition into the Oligocene icehouse, marking the spread of boreal desert-steppes of Central Asia. We show that increasing aridity and the decline of monsoonal rainfall, in parallel with global cooling, caused the fall of soil respiration. These highly dynamic Rs emphasize the need for a systematic screening of paleosol isotopic data before using the soil paleobarometer to reconstruct CO2atm © 2020
英文关键词	Atmospheric CO2; Desertification; Monsoons; Paleoclimate; Paleogene; Paleosol
语种	英语
scopus关键词	carbon dioxide; cooling; Eocene; monsoon; Oligocene; paleoclimate; paleosol; proxy climate record; reconstruction; sedimentary basin; soil respiration; Central Asia; China; Xizang; Xizang
来源期刊	Palaeogeography, Palaeoclimatology, Palaeoecology
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/150304
作者单位	Department of Earth and Space Sciences, University of Washington, Seattle, WA, United States; Universität Potsdam, Institute of Geosciences, Potsdam, 14476, Germany; Géosciences Rennes, UMR CNRS 6118, Université de Rennes74205, France; Key Laboratory of Orogenic Belts and Crustal Evolution, Peking University, Beijing, 100871, China; Max Planck Institute for Meteorology, Bundesstraße 53, Hamburg, 21460, Germany; Senckenberg Biodiversity and Climate Research Centre, Frankfurt am Main, 60325, Germany; Department of Geosciences, Colorado State University, Fort Collins, CO 60325, United States; Institute of Geosciences, Goethe University, Frankfurt am Main, 60438, Germany; Department of Ecosystem and Landscape Dynamics, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam1098 XH, Netherlands; Department of Ecology, Environment and Plant Sciences and Bolin Centre for Climate Research, Stockholm UniversitySE-106 91, Sweden
推荐引用方式 GB/T 7714	Licht A.,Dupont-Nivet G.,Meijer N.,et al. Decline of soil respiration in northeastern Tibet through the transition into the Oligocene icehouse[J],2020,560.
APA	Licht A..,Dupont-Nivet G..,Meijer N..,Caves Rugenstein J..,Schauer A..,...&Guo Z..(2020).Decline of soil respiration in northeastern Tibet through the transition into the Oligocene icehouse.Palaeogeography, Palaeoclimatology, Palaeoecology,560.
MLA	Licht A.,et al."Decline of soil respiration in northeastern Tibet through the transition into the Oligocene icehouse".Palaeogeography, Palaeoclimatology, Palaeoecology 560(2020).