Widespread Global Peatland Establishment and Persistence over the Last 130,000 Y
Glacialinterglacial variations in CO2 (exp) 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 an...
Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
---|---|
Format: | Other/Unknown Material |
Language: | unknown |
Published: |
2019
|
Subjects: | |
Online Access: | http://hdl.handle.net/2060/20190001736 |
id |
ftnasantrs:oai:casi.ntrs.nasa.gov:20190001736 |
---|---|
record_format |
openpolar |
spelling |
ftnasantrs:oai:casi.ntrs.nasa.gov:20190001736 2023-05-15T16:37:52+02:00 Widespread Global Peatland Establishment and Persistence over the Last 130,000 Y Grosse, Guido Strauss, Jens Broothaerts, Nils Jones, Miriam C. Swindles, Graeme T. Lacourse, Terri Dommain, René Yu, Zicheng Kuhry, Peter Alexanderson, Helena Hope, Geoffrey Hutchings, Jack Payne, Richard J. Hättestrand, Martina Sannel, A. Britt a K. Peteet, Dorothy M. Verstraeten, Gert Dalton, April S. Williams, Christopher J. Douglas, Thomas A. Kleinen, Thomas Treat, Claire C. Väliranta, Minna Lähteenoja, Outi Finkelstein, Sarah A. Stelling, Jonathan M. Drexlr, Judith Z. Xia, Zhengyu Talbot, Julie Notebaert, Bastiaan Brovkin, Victor Tarnocai, Charles Loisel, Julie Unclassified, Unlimited, Publicly available January 7, 2019 application/pdf http://hdl.handle.net/2060/20190001736 unknown Document ID: 20190001736 http://hdl.handle.net/2060/20190001736 Copyright, Use by or on behalf of the U.S. Government permitted CASI Meteorology and Climatology GSFC-E-DAA-TN66093 Proceedings of the National Academy of Sciences; 116; 11; 4822-4827 2019 ftnasantrs 2019-07-21T06:02:13Z Glacialinterglacial variations in CO2 (exp) 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 (>40N), 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. Other/Unknown Material Ice permafrost NASA Technical Reports Server (NTRS) |
institution |
Open Polar |
collection |
NASA Technical Reports Server (NTRS) |
op_collection_id |
ftnasantrs |
language |
unknown |
topic |
Meteorology and Climatology |
spellingShingle |
Meteorology and Climatology Grosse, Guido Strauss, Jens Broothaerts, Nils Jones, Miriam C. Swindles, Graeme T. Lacourse, Terri Dommain, René Yu, Zicheng Kuhry, Peter Alexanderson, Helena Hope, Geoffrey Hutchings, Jack Payne, Richard J. Hättestrand, Martina Sannel, A. Britt a K. Peteet, Dorothy M. Verstraeten, Gert Dalton, April S. Williams, Christopher J. Douglas, Thomas A. Kleinen, Thomas Treat, Claire C. Väliranta, Minna Lähteenoja, Outi Finkelstein, Sarah A. Stelling, Jonathan M. Drexlr, Judith Z. Xia, Zhengyu Talbot, Julie Notebaert, Bastiaan Brovkin, Victor Tarnocai, Charles Loisel, Julie Widespread Global Peatland Establishment and Persistence over the Last 130,000 Y |
topic_facet |
Meteorology and Climatology |
description |
Glacialinterglacial variations in CO2 (exp) 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 (>40N), 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. |
format |
Other/Unknown Material |
author |
Grosse, Guido Strauss, Jens Broothaerts, Nils Jones, Miriam C. Swindles, Graeme T. Lacourse, Terri Dommain, René Yu, Zicheng Kuhry, Peter Alexanderson, Helena Hope, Geoffrey Hutchings, Jack Payne, Richard J. Hättestrand, Martina Sannel, A. Britt a K. Peteet, Dorothy M. Verstraeten, Gert Dalton, April S. Williams, Christopher J. Douglas, Thomas A. Kleinen, Thomas Treat, Claire C. Väliranta, Minna Lähteenoja, Outi Finkelstein, Sarah A. Stelling, Jonathan M. Drexlr, Judith Z. Xia, Zhengyu Talbot, Julie Notebaert, Bastiaan Brovkin, Victor Tarnocai, Charles Loisel, Julie |
author_facet |
Grosse, Guido Strauss, Jens Broothaerts, Nils Jones, Miriam C. Swindles, Graeme T. Lacourse, Terri Dommain, René Yu, Zicheng Kuhry, Peter Alexanderson, Helena Hope, Geoffrey Hutchings, Jack Payne, Richard J. Hättestrand, Martina Sannel, A. Britt a K. Peteet, Dorothy M. Verstraeten, Gert Dalton, April S. Williams, Christopher J. Douglas, Thomas A. Kleinen, Thomas Treat, Claire C. Väliranta, Minna Lähteenoja, Outi Finkelstein, Sarah A. Stelling, Jonathan M. Drexlr, Judith Z. Xia, Zhengyu Talbot, Julie Notebaert, Bastiaan Brovkin, Victor Tarnocai, Charles Loisel, Julie |
author_sort |
Grosse, Guido |
title |
Widespread Global Peatland Establishment and Persistence over the Last 130,000 Y |
title_short |
Widespread Global Peatland Establishment and Persistence over the Last 130,000 Y |
title_full |
Widespread Global Peatland Establishment and Persistence over the Last 130,000 Y |
title_fullStr |
Widespread Global Peatland Establishment and Persistence over the Last 130,000 Y |
title_full_unstemmed |
Widespread Global Peatland Establishment and Persistence over the Last 130,000 Y |
title_sort |
widespread global peatland establishment and persistence over the last 130,000 y |
publishDate |
2019 |
url |
http://hdl.handle.net/2060/20190001736 |
op_coverage |
Unclassified, Unlimited, Publicly available |
genre |
Ice permafrost |
genre_facet |
Ice permafrost |
op_source |
CASI |
op_relation |
Document ID: 20190001736 http://hdl.handle.net/2060/20190001736 |
op_rights |
Copyright, Use by or on behalf of the U.S. Government permitted |
_version_ |
1766028164586274816 |