Modeling Holocene Peatland Carbon Accumulation in North America
Peatlands are a large carbon reservoir. Yet the quantification of their carbon stock still has a large uncertainty due to lacking observational data and well‐tested peatland biogeochemistry models. Here, a process‐based peatland model was calibrated using long‐term peat carbon accumulation data at m...
Main Authors: | , , , , , , , |
---|---|
Format: | Text |
Language: | unknown |
Published: |
Chapman University Digital Commons
2020
|
Subjects: | |
Online Access: | https://digitalcommons.chapman.edu/sees_articles/422 https://digitalcommons.chapman.edu/cgi/viewcontent.cgi?article=1423&context=sees_articles |
id |
ftchapmanuniv:oai:digitalcommons.chapman.edu:sees_articles-1423 |
---|---|
record_format |
openpolar |
spelling |
ftchapmanuniv:oai:digitalcommons.chapman.edu:sees_articles-1423 2023-05-15T17:57:50+02:00 Modeling Holocene Peatland Carbon Accumulation in North America Zhuang, Qianlai Wang, Sirui Zhao, Bailu Aires, Filipe Prigent, Catherine Yu, Zicheng Keller, Jason K. Bridgham, Scott 2020-11-09T08:00:00Z application/pdf https://digitalcommons.chapman.edu/sees_articles/422 https://digitalcommons.chapman.edu/cgi/viewcontent.cgi?article=1423&context=sees_articles unknown Chapman University Digital Commons https://digitalcommons.chapman.edu/sees_articles/422 https://digitalcommons.chapman.edu/cgi/viewcontent.cgi?article=1423&context=sees_articles American Geophysical Union Biology, Chemistry, and Environmental Sciences Faculty Articles and Research modeling climate wetland carbon simulation physics Biogeochemistry Environmental Indicators and Impact Assessment Environmental Monitoring text 2020 ftchapmanuniv 2022-03-07T13:43:16Z Peatlands are a large carbon reservoir. Yet the quantification of their carbon stock still has a large uncertainty due to lacking observational data and well‐tested peatland biogeochemistry models. Here, a process‐based peatland model was calibrated using long‐term peat carbon accumulation data at multiple sites in North America. The model was then applied to quantify the peat carbon accumulation rates and stocks within North America over the last 12,000 years. We estimated that 85–174 Pg carbon was accumulated in North American peatlands over the study period including 0.37–0.76 Pg carbon in subtropical peatlands. During the period from 10,000 to 8,000 years ago, the warmer and wetter conditions might have played an important role in stimulating peat carbon accumulation by enhancing plant photosynthesis. Enhanced peat decomposition due to warming slowed the carbon accumulation through the rest of the Holocene. While recent modeling studies indicate that the northern peatlands will continue to act as a carbon sink in this century, our studies suggest that future enhanced peat decomposition accompanied by peatland areal changes induced by permafrost degradation and other disturbances shall confound the sink and source analysis. Text permafrost Chapman University Digital Commons |
institution |
Open Polar |
collection |
Chapman University Digital Commons |
op_collection_id |
ftchapmanuniv |
language |
unknown |
topic |
modeling climate wetland carbon simulation physics Biogeochemistry Environmental Indicators and Impact Assessment Environmental Monitoring |
spellingShingle |
modeling climate wetland carbon simulation physics Biogeochemistry Environmental Indicators and Impact Assessment Environmental Monitoring Zhuang, Qianlai Wang, Sirui Zhao, Bailu Aires, Filipe Prigent, Catherine Yu, Zicheng Keller, Jason K. Bridgham, Scott Modeling Holocene Peatland Carbon Accumulation in North America |
topic_facet |
modeling climate wetland carbon simulation physics Biogeochemistry Environmental Indicators and Impact Assessment Environmental Monitoring |
description |
Peatlands are a large carbon reservoir. Yet the quantification of their carbon stock still has a large uncertainty due to lacking observational data and well‐tested peatland biogeochemistry models. Here, a process‐based peatland model was calibrated using long‐term peat carbon accumulation data at multiple sites in North America. The model was then applied to quantify the peat carbon accumulation rates and stocks within North America over the last 12,000 years. We estimated that 85–174 Pg carbon was accumulated in North American peatlands over the study period including 0.37–0.76 Pg carbon in subtropical peatlands. During the period from 10,000 to 8,000 years ago, the warmer and wetter conditions might have played an important role in stimulating peat carbon accumulation by enhancing plant photosynthesis. Enhanced peat decomposition due to warming slowed the carbon accumulation through the rest of the Holocene. While recent modeling studies indicate that the northern peatlands will continue to act as a carbon sink in this century, our studies suggest that future enhanced peat decomposition accompanied by peatland areal changes induced by permafrost degradation and other disturbances shall confound the sink and source analysis. |
format |
Text |
author |
Zhuang, Qianlai Wang, Sirui Zhao, Bailu Aires, Filipe Prigent, Catherine Yu, Zicheng Keller, Jason K. Bridgham, Scott |
author_facet |
Zhuang, Qianlai Wang, Sirui Zhao, Bailu Aires, Filipe Prigent, Catherine Yu, Zicheng Keller, Jason K. Bridgham, Scott |
author_sort |
Zhuang, Qianlai |
title |
Modeling Holocene Peatland Carbon Accumulation in North America |
title_short |
Modeling Holocene Peatland Carbon Accumulation in North America |
title_full |
Modeling Holocene Peatland Carbon Accumulation in North America |
title_fullStr |
Modeling Holocene Peatland Carbon Accumulation in North America |
title_full_unstemmed |
Modeling Holocene Peatland Carbon Accumulation in North America |
title_sort |
modeling holocene peatland carbon accumulation in north america |
publisher |
Chapman University Digital Commons |
publishDate |
2020 |
url |
https://digitalcommons.chapman.edu/sees_articles/422 https://digitalcommons.chapman.edu/cgi/viewcontent.cgi?article=1423&context=sees_articles |
genre |
permafrost |
genre_facet |
permafrost |
op_source |
Biology, Chemistry, and Environmental Sciences Faculty Articles and Research |
op_relation |
https://digitalcommons.chapman.edu/sees_articles/422 https://digitalcommons.chapman.edu/cgi/viewcontent.cgi?article=1423&context=sees_articles |
op_rights |
American Geophysical Union |
_version_ |
1766166339366420480 |