C-14 Variation of Dissolved Lignin in Arctic River Systems
Assessing permafrost-release signals in arctic rivers is challenging due to mixing of complex carbon components of contrasting ages. Compound-specific C-14 analysis of terrestrially derived molecules may reduce the influence of mixed carbon sources and potentially provide a closer examination on the...
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Language: | English |
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AMER CHEMICAL SOC
2017
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ftchiacadscibcas:oai:ir.ibcas.ac.cn:2S10CLM1/22127 2023-05-15T14:43:22+02:00 C-14 Variation of Dissolved Lignin in Arctic River Systems Feng, Xiaojuan Vonk, Jorien E. Griffin, Claire Zimov, Nikita Montlucon, Daniel B. Wacker, Lukas Eglinton, Timothy I. 2017 http://ir.ibcas.ac.cn/handle/2S10CLM1/22127 https://doi.org/10.1093/jpe/rtw114 英语 eng AMER CHEMICAL SOC ACS EARTH AND SPACE CHEMISTRY http://ir.ibcas.ac.cn/handle/2S10CLM1/22127 doi:10.1093/jpe/rtw114 cn.org.cspace.api.content.CopyrightPolicy@2507d767 Compound-specific radiocarbon analysis arctic rivers dissolved organic matter lignin phenols Keeling plot Plant Sciences Environmental Sciences & Ecology Forestry TERRESTRIAL CARBON TRANSFER ANCIENT PERMAFROST CARBON ORGANIC-MATTER MULTIMOLECULAR TRACERS RADIOCARBON ANALYSIS AMAZON RIVER EXPORT BIOMARKERS DELTA-C-14 COMPONENTS Article 期刊论文 2017 ftchiacadscibcas https://doi.org/10.1093/jpe/rtw114 2022-06-12T18:14:25Z Assessing permafrost-release signals in arctic rivers is challenging due to mixing of complex carbon components of contrasting ages. Compound-specific C-14 analysis of terrestrially derived molecules may reduce the influence of mixed carbon sources and potentially provide a closer examination on the dynamics of permafrost-derived carbon in arctic rivers. Here we employed a recently modified method to determine radiocarbon contents of lignin phenols, as a classic tracer for terrestrial carbon, isolated from the dissolved organic matter (DOM) of two arctic river systems that showed contrasting seasonal dynamics and age components in DOM. While dissolved lignin had relatively invariant C-14 contents in the Mackenzie, it was more concentrated and C-14 enriched during spring thaw but relatively diluted and C-14-depleted in the summer flow or permafrost thaw waters in the Kolyma. Remarkably, the covariance between dissolved lignin concentrations and its C-14 contents nicely followed the Keeling plot, indicating mixing of a young pool of dissolved lignin with an aged pool of a constant concentration within the river. Using model parameters, we showed that although the young pool had similarly modern ages in both rivers, Kolyma had a much higher concentration of aged dissolved lignin and/or with older ages. With this approach, our study not only provided the first set of C data on dissolved lignin phenols in rivers but also demonstrated that the age and abundance of the old DOM pool can be assessed by radiocarbon dating of dissolved lignin in arctic rivers related to permafrost release. Article in Journal/Newspaper Arctic permafrost Institute of Botany: IBCAS OpenIR (Chinese Academy Of Sciences) Arctic Kolyma ENVELOPE(161.000,161.000,69.500,69.500) Journal of Plant Ecology 10 1 74 80 |
institution |
Open Polar |
collection |
Institute of Botany: IBCAS OpenIR (Chinese Academy Of Sciences) |
op_collection_id |
ftchiacadscibcas |
language |
English |
topic |
Compound-specific radiocarbon analysis arctic rivers dissolved organic matter lignin phenols Keeling plot Plant Sciences Environmental Sciences & Ecology Forestry TERRESTRIAL CARBON TRANSFER ANCIENT PERMAFROST CARBON ORGANIC-MATTER MULTIMOLECULAR TRACERS RADIOCARBON ANALYSIS AMAZON RIVER EXPORT BIOMARKERS DELTA-C-14 COMPONENTS |
spellingShingle |
Compound-specific radiocarbon analysis arctic rivers dissolved organic matter lignin phenols Keeling plot Plant Sciences Environmental Sciences & Ecology Forestry TERRESTRIAL CARBON TRANSFER ANCIENT PERMAFROST CARBON ORGANIC-MATTER MULTIMOLECULAR TRACERS RADIOCARBON ANALYSIS AMAZON RIVER EXPORT BIOMARKERS DELTA-C-14 COMPONENTS Feng, Xiaojuan Vonk, Jorien E. Griffin, Claire Zimov, Nikita Montlucon, Daniel B. Wacker, Lukas Eglinton, Timothy I. C-14 Variation of Dissolved Lignin in Arctic River Systems |
topic_facet |
Compound-specific radiocarbon analysis arctic rivers dissolved organic matter lignin phenols Keeling plot Plant Sciences Environmental Sciences & Ecology Forestry TERRESTRIAL CARBON TRANSFER ANCIENT PERMAFROST CARBON ORGANIC-MATTER MULTIMOLECULAR TRACERS RADIOCARBON ANALYSIS AMAZON RIVER EXPORT BIOMARKERS DELTA-C-14 COMPONENTS |
description |
Assessing permafrost-release signals in arctic rivers is challenging due to mixing of complex carbon components of contrasting ages. Compound-specific C-14 analysis of terrestrially derived molecules may reduce the influence of mixed carbon sources and potentially provide a closer examination on the dynamics of permafrost-derived carbon in arctic rivers. Here we employed a recently modified method to determine radiocarbon contents of lignin phenols, as a classic tracer for terrestrial carbon, isolated from the dissolved organic matter (DOM) of two arctic river systems that showed contrasting seasonal dynamics and age components in DOM. While dissolved lignin had relatively invariant C-14 contents in the Mackenzie, it was more concentrated and C-14 enriched during spring thaw but relatively diluted and C-14-depleted in the summer flow or permafrost thaw waters in the Kolyma. Remarkably, the covariance between dissolved lignin concentrations and its C-14 contents nicely followed the Keeling plot, indicating mixing of a young pool of dissolved lignin with an aged pool of a constant concentration within the river. Using model parameters, we showed that although the young pool had similarly modern ages in both rivers, Kolyma had a much higher concentration of aged dissolved lignin and/or with older ages. With this approach, our study not only provided the first set of C data on dissolved lignin phenols in rivers but also demonstrated that the age and abundance of the old DOM pool can be assessed by radiocarbon dating of dissolved lignin in arctic rivers related to permafrost release. |
format |
Article in Journal/Newspaper |
author |
Feng, Xiaojuan Vonk, Jorien E. Griffin, Claire Zimov, Nikita Montlucon, Daniel B. Wacker, Lukas Eglinton, Timothy I. |
author_facet |
Feng, Xiaojuan Vonk, Jorien E. Griffin, Claire Zimov, Nikita Montlucon, Daniel B. Wacker, Lukas Eglinton, Timothy I. |
author_sort |
Feng, Xiaojuan |
title |
C-14 Variation of Dissolved Lignin in Arctic River Systems |
title_short |
C-14 Variation of Dissolved Lignin in Arctic River Systems |
title_full |
C-14 Variation of Dissolved Lignin in Arctic River Systems |
title_fullStr |
C-14 Variation of Dissolved Lignin in Arctic River Systems |
title_full_unstemmed |
C-14 Variation of Dissolved Lignin in Arctic River Systems |
title_sort |
c-14 variation of dissolved lignin in arctic river systems |
publisher |
AMER CHEMICAL SOC |
publishDate |
2017 |
url |
http://ir.ibcas.ac.cn/handle/2S10CLM1/22127 https://doi.org/10.1093/jpe/rtw114 |
long_lat |
ENVELOPE(161.000,161.000,69.500,69.500) |
geographic |
Arctic Kolyma |
geographic_facet |
Arctic Kolyma |
genre |
Arctic permafrost |
genre_facet |
Arctic permafrost |
op_relation |
ACS EARTH AND SPACE CHEMISTRY http://ir.ibcas.ac.cn/handle/2S10CLM1/22127 doi:10.1093/jpe/rtw114 |
op_rights |
cn.org.cspace.api.content.CopyrightPolicy@2507d767 |
op_doi |
https://doi.org/10.1093/jpe/rtw114 |
container_title |
Journal of Plant Ecology |
container_volume |
10 |
container_issue |
1 |
container_start_page |
74 |
op_container_end_page |
80 |
_version_ |
1766315036141158400 |