Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1073/pnas.1813305116 |
Widespread global peatland establishment and persistence over the last 130,000 y | |
Claire C. Treat; Thomas Kleinen; Nils Broothaerts; April S. Dalton; René Dommain; Thomas A. Douglas; Judith Z. Drexler; Sarah A. Finkelstein; Guido Grosse; Geoffrey Hope; Jack Hutchings; Miriam C. Jones; Peter Kuhry; Terri Lacourse; Outi Lähteenoja; Julie Loisel; Bastiaan Notebaert; Richard J. Payne; Dorothy M. Peteet; A. Britta K. Sannel; Jonathan M. Stelling; Jens Strauss; Graeme T. Swindles; Julie Talbot; Charles Tarnocai; Gert Verstraeten; Christopher J. Williams; Zhengyu Xia; Zicheng Yu; Minna Väliranta; Martina Hättestrand; Helena Alexanderson; and Victor Brovkin | |
2019 | |
发表期刊 | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA |
出版年 | 2019 |
卷号 | 116期号:11页码:4822-4827 |
英文摘要 | AbstractGlacial−interglacial variations in CO2 and methane in polar ice cores have been attributed, in part, to changes in global wetland extent, but the wetland distribution before the Last Glacial Maximum (LGM, 21 ka to 18 ka) remains virtually unknown. We present a study of global peatland extent and carbon (C) stocks through the last glacial cycle (130 ka to present) using a newly compiled database of 1,063 detailed stratigraphic records of peat deposits buried by mineral sediments, as well as a global peatland model. Quantitative agreement between modeling and observations shows extensive peat accumulation before the LGM in northern latitudes (>40°N), particularly during warmer periods including the last interglacial (130 ka to 116 ka, MIS 5e) and the interstadial (57 ka to 29 ka, MIS 3). During cooling periods of glacial advance and permafrost formation, the burial of northern peatlands by glaciers and mineral sediments decreased active peatland extent, thickness, and modeled C stocks by 70 to 90% from warmer times. Tropical peatland extent and C stocks show little temporal variation throughout the study period. While the increased burial of northern peats was correlated with cooling periods, the burial of tropical peat was predominately driven by changes in sea level and regional hydrology. Peat burial by mineral sediments represents a mechanism for long-term terrestrial C storage in the Earth system. These results show that northern peatlands accumulate significant C stocks during warmer times, indicating their potential for C sequestration during the warming Anthropocene. |
英文关键词 | peatlands carbon methane carbon burial Quaternary |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/205065 |
专题 | 地球科学 资源环境科学 气候变化 |
推荐引用方式 GB/T 7714 | Claire C. Treat,Thomas Kleinen,Nils Broothaerts,et al. Widespread global peatland establishment and persistence over the last 130,000 y[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2019,116(11):4822-4827. |
APA | Claire C. Treat.,Thomas Kleinen.,Nils Broothaerts.,April S. Dalton.,René Dommain.,...&and Victor Brovkin.(2019).Widespread global peatland establishment and persistence over the last 130,000 y.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,116(11),4822-4827. |
MLA | Claire C. Treat,et al."Widespread global peatland establishment and persistence over the last 130,000 y".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 116.11(2019):4822-4827. |
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