Insights and issues with simulating terrestrial DOC loading of Arctic river networks
Terrestrial carbon dynamics influence the contribution of dissolved organic carbon (DOC) to river networks in addition to hydrology. In this study, we use a biogeochemical process model to simulate the lateral transfer of DOC from land to the Arctic Ocean via riverine transport. We estimate that, ov...
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crwiley:10.1890/11-1050.1 2024-05-19T07:34:43+00:00 Insights and issues with simulating terrestrial DOC loading of Arctic river networks Kicklighter, David W. Hayes, Daniel J. McClelland, James W. Peterson, Bruce J. McGuire, A. David Melillo, Jerry M. 2013 http://dx.doi.org/10.1890/11-1050.1 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1890%2F11-1050.1 https://esajournals.onlinelibrary.wiley.com/doi/pdf/10.1890/11-1050.1 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Ecological Applications volume 23, issue 8, page 1817-1836 ISSN 1051-0761 1939-5582 Ecology journal-article 2013 crwiley https://doi.org/10.1890/11-1050.1 2024-04-22T07:32:47Z Terrestrial carbon dynamics influence the contribution of dissolved organic carbon (DOC) to river networks in addition to hydrology. In this study, we use a biogeochemical process model to simulate the lateral transfer of DOC from land to the Arctic Ocean via riverine transport. We estimate that, over the 20th century, the pan‐Arctic watershed has contributed, on average, 32 Tg C/yr of DOC to river networks emptying into the Arctic Ocean with most of the DOC coming from the extensive area of boreal deciduous needle‐leaved forests and forested wetlands in Eurasian watersheds. We also estimate that the rate of terrestrial DOC loading has been increasing by 0.037 Tg C/yr 2 over the 20th century primarily as a result of climate‐induced increases in water yield. These increases have been offset by decreases in terrestrial DOC loading caused by wildfires. Other environmental factors (CO 2 fertilization, ozone pollution, atmospheric nitrogen deposition, timber harvest, agriculture) are estimated to have relatively small effects on terrestrial DOC loading to Arctic rivers. The effects of the various environmental factors on terrestrial carbon dynamics have both offset and enhanced concurrent effects on hydrology to influence terrestrial DOC loading and may be changing the relative importance of terrestrial carbon dynamics on this carbon flux. Improvements in simulating terrestrial DOC loading to pan‐Arctic rivers in the future will require better information on the production and consumption of DOC within the soil profile, the transfer of DOC from land to headwater streams, the spatial distribution of precipitation and its temporal trends, carbon dynamics of larch‐dominated ecosystems in eastern Siberia, and the role of industrial organic effluents on carbon budgets of rivers in western Russia. Article in Journal/Newspaper Arctic Arctic Ocean Siberia Wiley Online Library Ecological Applications 23 8 1817 1836 |
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Wiley Online Library |
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English |
topic |
Ecology |
spellingShingle |
Ecology Kicklighter, David W. Hayes, Daniel J. McClelland, James W. Peterson, Bruce J. McGuire, A. David Melillo, Jerry M. Insights and issues with simulating terrestrial DOC loading of Arctic river networks |
topic_facet |
Ecology |
description |
Terrestrial carbon dynamics influence the contribution of dissolved organic carbon (DOC) to river networks in addition to hydrology. In this study, we use a biogeochemical process model to simulate the lateral transfer of DOC from land to the Arctic Ocean via riverine transport. We estimate that, over the 20th century, the pan‐Arctic watershed has contributed, on average, 32 Tg C/yr of DOC to river networks emptying into the Arctic Ocean with most of the DOC coming from the extensive area of boreal deciduous needle‐leaved forests and forested wetlands in Eurasian watersheds. We also estimate that the rate of terrestrial DOC loading has been increasing by 0.037 Tg C/yr 2 over the 20th century primarily as a result of climate‐induced increases in water yield. These increases have been offset by decreases in terrestrial DOC loading caused by wildfires. Other environmental factors (CO 2 fertilization, ozone pollution, atmospheric nitrogen deposition, timber harvest, agriculture) are estimated to have relatively small effects on terrestrial DOC loading to Arctic rivers. The effects of the various environmental factors on terrestrial carbon dynamics have both offset and enhanced concurrent effects on hydrology to influence terrestrial DOC loading and may be changing the relative importance of terrestrial carbon dynamics on this carbon flux. Improvements in simulating terrestrial DOC loading to pan‐Arctic rivers in the future will require better information on the production and consumption of DOC within the soil profile, the transfer of DOC from land to headwater streams, the spatial distribution of precipitation and its temporal trends, carbon dynamics of larch‐dominated ecosystems in eastern Siberia, and the role of industrial organic effluents on carbon budgets of rivers in western Russia. |
format |
Article in Journal/Newspaper |
author |
Kicklighter, David W. Hayes, Daniel J. McClelland, James W. Peterson, Bruce J. McGuire, A. David Melillo, Jerry M. |
author_facet |
Kicklighter, David W. Hayes, Daniel J. McClelland, James W. Peterson, Bruce J. McGuire, A. David Melillo, Jerry M. |
author_sort |
Kicklighter, David W. |
title |
Insights and issues with simulating terrestrial DOC loading of Arctic river networks |
title_short |
Insights and issues with simulating terrestrial DOC loading of Arctic river networks |
title_full |
Insights and issues with simulating terrestrial DOC loading of Arctic river networks |
title_fullStr |
Insights and issues with simulating terrestrial DOC loading of Arctic river networks |
title_full_unstemmed |
Insights and issues with simulating terrestrial DOC loading of Arctic river networks |
title_sort |
insights and issues with simulating terrestrial doc loading of arctic river networks |
publisher |
Wiley |
publishDate |
2013 |
url |
http://dx.doi.org/10.1890/11-1050.1 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1890%2F11-1050.1 https://esajournals.onlinelibrary.wiley.com/doi/pdf/10.1890/11-1050.1 |
genre |
Arctic Arctic Ocean Siberia |
genre_facet |
Arctic Arctic Ocean Siberia |
op_source |
Ecological Applications volume 23, issue 8, page 1817-1836 ISSN 1051-0761 1939-5582 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1890/11-1050.1 |
container_title |
Ecological Applications |
container_volume |
23 |
container_issue |
8 |
container_start_page |
1817 |
op_container_end_page |
1836 |
_version_ |
1799472897473904640 |