Differential effects of biomass burning on carbon and nutrient dynamics in Arctic fluvial ecosystems
The Central Siberia Plateau (CSP) is undergoing rapid climate change resulting in increasing frequency of forest fires, which have uncertain effects on organic matter and nutrient delivery from headwater streams to downstream ecosystems. Across a fire chronosequence (3 to >100 years) underlain by...
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dataone:sha256:087f0eeaf7ec8d6bad8bd4930509fa186a09105f086113ceb5ba74602c99f14a 2024-06-03T18:46:33+00:00 Differential effects of biomass burning on carbon and nutrient dynamics in Arctic fluvial ecosystems Bianca Rodriguez-Cardona Ashley A. Coble Adam Wymore Roman Kolosov David C. Podgorski Phoebe Zito Robert G.M. Spencer Anatoly S. Prokushkin William McDowell BEGINDATE: 2011-06-04T00:00:00Z ENDDATE: 2016-06-19T00:00:00Z 2018-06-15T18:03:16.516Z https://search.dataone.org/view/sha256:087f0eeaf7ec8d6bad8bd4930509fa186a09105f086113ceb5ba74602c99f14a unknown DOC Arctic biogeochemistry NO3 forest fires streams DOM Dataset 2018 dataone:urn:node:HYDROSHARE 2024-06-03T18:17:57Z The Central Siberia Plateau (CSP) is undergoing rapid climate change resulting in increasing frequency of forest fires, which have uncertain effects on organic matter and nutrient delivery from headwater streams to downstream ecosystems. Across a fire chronosequence (3 to >100 years) underlain by continuous permafrost, we quantified the effects of wildfire on quantity and quality of dissolved organic matter (DOM) and inorganic nutrients in streams. Wildfire decreased DOM concentrations for about 50 years, but elevated nitrate (NO3-) concentrations lasted only 10 years; ammonium and phosphate concentrations were unchanged. This increase in NO3- and decrease in dissolved organic carbon (DOC) results in a wide range of DOC:NO3-, a ratio that is known to regulate NO3- uptake and denitrification in streams. Ultrahigh-resolution mass spectrometry and DOM optical properties showed that the composition of stream DOM changes after fire, with decreased abundance of polyphenols and aliphatic forms of DOM that are typically more biolabile than other forms of OM. Increasing wildfire frequency is thus likely to have major shifts in the metabolism, carbon flux, and nutrient balance of Arctic fluvial systems. Dataset Arctic Climate change permafrost Siberia Unknown Arctic |
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Open Polar |
collection |
Unknown |
op_collection_id |
dataone:urn:node:HYDROSHARE |
language |
unknown |
topic |
DOC Arctic biogeochemistry NO3 forest fires streams DOM |
spellingShingle |
DOC Arctic biogeochemistry NO3 forest fires streams DOM Bianca Rodriguez-Cardona Ashley A. Coble Adam Wymore Roman Kolosov David C. Podgorski Phoebe Zito Robert G.M. Spencer Anatoly S. Prokushkin William McDowell Differential effects of biomass burning on carbon and nutrient dynamics in Arctic fluvial ecosystems |
topic_facet |
DOC Arctic biogeochemistry NO3 forest fires streams DOM |
description |
The Central Siberia Plateau (CSP) is undergoing rapid climate change resulting in increasing frequency of forest fires, which have uncertain effects on organic matter and nutrient delivery from headwater streams to downstream ecosystems. Across a fire chronosequence (3 to >100 years) underlain by continuous permafrost, we quantified the effects of wildfire on quantity and quality of dissolved organic matter (DOM) and inorganic nutrients in streams. Wildfire decreased DOM concentrations for about 50 years, but elevated nitrate (NO3-) concentrations lasted only 10 years; ammonium and phosphate concentrations were unchanged. This increase in NO3- and decrease in dissolved organic carbon (DOC) results in a wide range of DOC:NO3-, a ratio that is known to regulate NO3- uptake and denitrification in streams. Ultrahigh-resolution mass spectrometry and DOM optical properties showed that the composition of stream DOM changes after fire, with decreased abundance of polyphenols and aliphatic forms of DOM that are typically more biolabile than other forms of OM. Increasing wildfire frequency is thus likely to have major shifts in the metabolism, carbon flux, and nutrient balance of Arctic fluvial systems. |
format |
Dataset |
author |
Bianca Rodriguez-Cardona Ashley A. Coble Adam Wymore Roman Kolosov David C. Podgorski Phoebe Zito Robert G.M. Spencer Anatoly S. Prokushkin William McDowell |
author_facet |
Bianca Rodriguez-Cardona Ashley A. Coble Adam Wymore Roman Kolosov David C. Podgorski Phoebe Zito Robert G.M. Spencer Anatoly S. Prokushkin William McDowell |
author_sort |
Bianca Rodriguez-Cardona |
title |
Differential effects of biomass burning on carbon and nutrient dynamics in Arctic fluvial ecosystems |
title_short |
Differential effects of biomass burning on carbon and nutrient dynamics in Arctic fluvial ecosystems |
title_full |
Differential effects of biomass burning on carbon and nutrient dynamics in Arctic fluvial ecosystems |
title_fullStr |
Differential effects of biomass burning on carbon and nutrient dynamics in Arctic fluvial ecosystems |
title_full_unstemmed |
Differential effects of biomass burning on carbon and nutrient dynamics in Arctic fluvial ecosystems |
title_sort |
differential effects of biomass burning on carbon and nutrient dynamics in arctic fluvial ecosystems |
publishDate |
2018 |
url |
https://search.dataone.org/view/sha256:087f0eeaf7ec8d6bad8bd4930509fa186a09105f086113ceb5ba74602c99f14a |
op_coverage |
BEGINDATE: 2011-06-04T00:00:00Z ENDDATE: 2016-06-19T00:00:00Z |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Climate change permafrost Siberia |
genre_facet |
Arctic Climate change permafrost Siberia |
_version_ |
1800867694690435072 |