Anthropogenically Enhanced Chemical Weathering and Carbon Evasion in the Yangtze Basin
Chemical weathering is a fundamental geochemical process regulating the atmosphere-land-ocean fluxes and earth’s climate. It is under natural conditions driven primarily by weak carbonic acid that originates from atmosphere CO2 or soil respiration. Chemical weathering is therefore assumed as positiv...
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ftoslouniv:oai:www.duo.uio.no:10852/56765 2023-05-15T15:52:29+02:00 Anthropogenically Enhanced Chemical Weathering and Carbon Evasion in the Yangtze Basin Guo, Jingheng Wang, Fushun Vogt, Rolf David Zhang, Yuhang Liu, Cong-Qaing 2015-08-03T11:37:38Z http://hdl.handle.net/10852/56765 http://urn.nb.no/URN:NBN:no-59535 https://doi.org/10.1038/srep11941 EN eng http://urn.nb.no/URN:NBN:no-59535 Guo, Jingheng Wang, Fushun Vogt, Rolf David Zhang, Yuhang Liu, Cong-Qaing . Anthropogenically Enhanced Chemical Weathering and Carbon Evasion in the Yangtze Basin. Scientific Reports. 2015, 5(11941) http://hdl.handle.net/10852/56765 1256067 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Scientific Reports&rft.volume=5&rft.spage=&rft.date=2015 Scientific Reports 5 11941 8 http://dx.doi.org/10.1038/srep11941 URN:NBN:no-59535 Fulltext https://www.duo.uio.no/bitstream/handle/10852/56765/2/srep11941.pdf Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ CC-BY 2045-2322 Journal article Tidsskriftartikkel Peer reviewed PublishedVersion 2015 ftoslouniv https://doi.org/10.1038/srep11941 2020-06-21T08:50:56Z Chemical weathering is a fundamental geochemical process regulating the atmosphere-land-ocean fluxes and earth’s climate. It is under natural conditions driven primarily by weak carbonic acid that originates from atmosphere CO2 or soil respiration. Chemical weathering is therefore assumed as positively coupled with its CO2 consumption in contemporary geochemistry. Strong acids (i.e. sulfuric- and nitric acid) from anthropogenic sources have been found to influence the weathering rate and CO2 consumption, but their integrated effects remain absent in the world largest river basins. By interpreting the water chemistry and overall proton budget in the Yangtze Basin, we found that anthropogenic acidification had enhanced the chemical weathering by 40% during the past three decades, leading to an increase of 30% in solute discharged to the ocean. Moreover, substitution of carbonic acid by strong acids increased inorganic carbon evasion, offsetting 30% of the CO2 consumption by carbonic weathering. Our assessments show that anthropogenic loadings of sulfuric and nitrogen compounds accelerate chemical weathering but lower its CO2 sequestration. These findings have significant relevance to improving our contemporary global biogeochemical budgets. Article in Journal/Newspaper Carbonic acid Universitet i Oslo: Digitale utgivelser ved UiO (DUO) Scientific Reports 5 1 |
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Universitet i Oslo: Digitale utgivelser ved UiO (DUO) |
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ftoslouniv |
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English |
description |
Chemical weathering is a fundamental geochemical process regulating the atmosphere-land-ocean fluxes and earth’s climate. It is under natural conditions driven primarily by weak carbonic acid that originates from atmosphere CO2 or soil respiration. Chemical weathering is therefore assumed as positively coupled with its CO2 consumption in contemporary geochemistry. Strong acids (i.e. sulfuric- and nitric acid) from anthropogenic sources have been found to influence the weathering rate and CO2 consumption, but their integrated effects remain absent in the world largest river basins. By interpreting the water chemistry and overall proton budget in the Yangtze Basin, we found that anthropogenic acidification had enhanced the chemical weathering by 40% during the past three decades, leading to an increase of 30% in solute discharged to the ocean. Moreover, substitution of carbonic acid by strong acids increased inorganic carbon evasion, offsetting 30% of the CO2 consumption by carbonic weathering. Our assessments show that anthropogenic loadings of sulfuric and nitrogen compounds accelerate chemical weathering but lower its CO2 sequestration. These findings have significant relevance to improving our contemporary global biogeochemical budgets. |
format |
Article in Journal/Newspaper |
author |
Guo, Jingheng Wang, Fushun Vogt, Rolf David Zhang, Yuhang Liu, Cong-Qaing |
spellingShingle |
Guo, Jingheng Wang, Fushun Vogt, Rolf David Zhang, Yuhang Liu, Cong-Qaing Anthropogenically Enhanced Chemical Weathering and Carbon Evasion in the Yangtze Basin |
author_facet |
Guo, Jingheng Wang, Fushun Vogt, Rolf David Zhang, Yuhang Liu, Cong-Qaing |
author_sort |
Guo, Jingheng |
title |
Anthropogenically Enhanced Chemical Weathering and Carbon Evasion in the Yangtze Basin |
title_short |
Anthropogenically Enhanced Chemical Weathering and Carbon Evasion in the Yangtze Basin |
title_full |
Anthropogenically Enhanced Chemical Weathering and Carbon Evasion in the Yangtze Basin |
title_fullStr |
Anthropogenically Enhanced Chemical Weathering and Carbon Evasion in the Yangtze Basin |
title_full_unstemmed |
Anthropogenically Enhanced Chemical Weathering and Carbon Evasion in the Yangtze Basin |
title_sort |
anthropogenically enhanced chemical weathering and carbon evasion in the yangtze basin |
publishDate |
2015 |
url |
http://hdl.handle.net/10852/56765 http://urn.nb.no/URN:NBN:no-59535 https://doi.org/10.1038/srep11941 |
genre |
Carbonic acid |
genre_facet |
Carbonic acid |
op_source |
2045-2322 |
op_relation |
http://urn.nb.no/URN:NBN:no-59535 Guo, Jingheng Wang, Fushun Vogt, Rolf David Zhang, Yuhang Liu, Cong-Qaing . Anthropogenically Enhanced Chemical Weathering and Carbon Evasion in the Yangtze Basin. Scientific Reports. 2015, 5(11941) http://hdl.handle.net/10852/56765 1256067 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Scientific Reports&rft.volume=5&rft.spage=&rft.date=2015 Scientific Reports 5 11941 8 http://dx.doi.org/10.1038/srep11941 URN:NBN:no-59535 Fulltext https://www.duo.uio.no/bitstream/handle/10852/56765/2/srep11941.pdf |
op_rights |
Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1038/srep11941 |
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Scientific Reports |
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5 |
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1 |
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1766387657751920640 |