Continental-scale decrease in net primary productivity in streams due to climate warming
Streams play a key role in the global carbon cycle. The balance between carbon intake through photosynthesis and carbon release via respiration influences carbon emissions from streams and depends on temperature. However, the lack of a comprehensive analysis of the temperature sensitivity of the met...
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ftuninhampshire:oai:scholars.unh.edu:faculty_pubs-1436 2023-05-15T15:07:18+02:00 Continental-scale decrease in net primary productivity in streams due to climate warming Song, Chao Dodds, Walter K. Ruegg, Janine Argerich, Alba Baker, Christina L. Bowden, William B. Douglas, Michael M. Farrell, Kaitlin J. Flinn, Michael B. Garcia, Erica A. Helton, Ashley M. Harms, Tamara K. Jia, Shufang Jones, Jeremy B. Koenig, Lauren E. Kominoski, John S. McDowell, William H. McMaster, Damien Parker, Samuel P. Rosemond, Amy D. Ruffing, Claire M. Sheehan, Ken R. Trentman, Matt T. Wollheim, Wilfred M. 2018-05-21T07:00:00Z https://scholars.unh.edu/faculty_pubs/437 https://doi.org/10.1038/s41561-018-0125-5 unknown University of New Hampshire Scholars' Repository https://scholars.unh.edu/faculty_pubs/437 https://doi.org/10.1038/s41561-018-0125-5 Faculty Publications text 2018 ftuninhampshire https://doi.org/10.1038/s41561-018-0125-5 2023-01-30T21:49:54Z Streams play a key role in the global carbon cycle. The balance between carbon intake through photosynthesis and carbon release via respiration influences carbon emissions from streams and depends on temperature. However, the lack of a comprehensive analysis of the temperature sensitivity of the metabolic balance in inland waters across latitudes and local climate conditions hinders an accurate projection of carbon emissions in a warmer future. Here, we use a model of diel dissolved oxygen dynamics, combined with high-frequency measurements of dissolved oxygen, light and temperature, to estimate the temperature sensitivities of gross primary production and ecosystem respiration in streams across six biomes, from the tropics to the arctic tundra. We find that the change in metabolic balance, that is, the ratio of gross primary production to ecosystem respiration, is a function of stream temperature and current metabolic balance. Applying this relationship to the global compilation of stream metabolism data, we find that a 1 °C increase in stream temperature leads to a convergence of metabolic balance and to a 23.6% overall decline in net ecosystem productivity across the streams studied. We suggest that if the relationship holds for similarly sized streams around the globe, the warming-induced shifts in metabolic balance will result in an increase of 0.0194 Pg carbon emitted from such streams every year. Text Arctic Tundra University of New Hampshire: Scholars Repository Arctic Nature Geoscience 11 6 415 420 |
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University of New Hampshire: Scholars Repository |
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ftuninhampshire |
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description |
Streams play a key role in the global carbon cycle. The balance between carbon intake through photosynthesis and carbon release via respiration influences carbon emissions from streams and depends on temperature. However, the lack of a comprehensive analysis of the temperature sensitivity of the metabolic balance in inland waters across latitudes and local climate conditions hinders an accurate projection of carbon emissions in a warmer future. Here, we use a model of diel dissolved oxygen dynamics, combined with high-frequency measurements of dissolved oxygen, light and temperature, to estimate the temperature sensitivities of gross primary production and ecosystem respiration in streams across six biomes, from the tropics to the arctic tundra. We find that the change in metabolic balance, that is, the ratio of gross primary production to ecosystem respiration, is a function of stream temperature and current metabolic balance. Applying this relationship to the global compilation of stream metabolism data, we find that a 1 °C increase in stream temperature leads to a convergence of metabolic balance and to a 23.6% overall decline in net ecosystem productivity across the streams studied. We suggest that if the relationship holds for similarly sized streams around the globe, the warming-induced shifts in metabolic balance will result in an increase of 0.0194 Pg carbon emitted from such streams every year. |
format |
Text |
author |
Song, Chao Dodds, Walter K. Ruegg, Janine Argerich, Alba Baker, Christina L. Bowden, William B. Douglas, Michael M. Farrell, Kaitlin J. Flinn, Michael B. Garcia, Erica A. Helton, Ashley M. Harms, Tamara K. Jia, Shufang Jones, Jeremy B. Koenig, Lauren E. Kominoski, John S. McDowell, William H. McMaster, Damien Parker, Samuel P. Rosemond, Amy D. Ruffing, Claire M. Sheehan, Ken R. Trentman, Matt T. Wollheim, Wilfred M. |
spellingShingle |
Song, Chao Dodds, Walter K. Ruegg, Janine Argerich, Alba Baker, Christina L. Bowden, William B. Douglas, Michael M. Farrell, Kaitlin J. Flinn, Michael B. Garcia, Erica A. Helton, Ashley M. Harms, Tamara K. Jia, Shufang Jones, Jeremy B. Koenig, Lauren E. Kominoski, John S. McDowell, William H. McMaster, Damien Parker, Samuel P. Rosemond, Amy D. Ruffing, Claire M. Sheehan, Ken R. Trentman, Matt T. Wollheim, Wilfred M. Continental-scale decrease in net primary productivity in streams due to climate warming |
author_facet |
Song, Chao Dodds, Walter K. Ruegg, Janine Argerich, Alba Baker, Christina L. Bowden, William B. Douglas, Michael M. Farrell, Kaitlin J. Flinn, Michael B. Garcia, Erica A. Helton, Ashley M. Harms, Tamara K. Jia, Shufang Jones, Jeremy B. Koenig, Lauren E. Kominoski, John S. McDowell, William H. McMaster, Damien Parker, Samuel P. Rosemond, Amy D. Ruffing, Claire M. Sheehan, Ken R. Trentman, Matt T. Wollheim, Wilfred M. |
author_sort |
Song, Chao |
title |
Continental-scale decrease in net primary productivity in streams due to climate warming |
title_short |
Continental-scale decrease in net primary productivity in streams due to climate warming |
title_full |
Continental-scale decrease in net primary productivity in streams due to climate warming |
title_fullStr |
Continental-scale decrease in net primary productivity in streams due to climate warming |
title_full_unstemmed |
Continental-scale decrease in net primary productivity in streams due to climate warming |
title_sort |
continental-scale decrease in net primary productivity in streams due to climate warming |
publisher |
University of New Hampshire Scholars' Repository |
publishDate |
2018 |
url |
https://scholars.unh.edu/faculty_pubs/437 https://doi.org/10.1038/s41561-018-0125-5 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Tundra |
genre_facet |
Arctic Tundra |
op_source |
Faculty Publications |
op_relation |
https://scholars.unh.edu/faculty_pubs/437 https://doi.org/10.1038/s41561-018-0125-5 |
op_doi |
https://doi.org/10.1038/s41561-018-0125-5 |
container_title |
Nature Geoscience |
container_volume |
11 |
container_issue |
6 |
container_start_page |
415 |
op_container_end_page |
420 |
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