Impacts of anthropogenic water regulation on global riverine dissolved organic carbon transport
Anthropogenic water regulation activities, including reservoir interception, surface water withdrawal, and groundwater extraction, alter riverine hydrologic processes and affect dissolved organic carbon (DOC) export from land to rivers and oceans. In this study, schemes describing soil DOC leaching,...
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00068639 2023-10-09T21:54:45+02:00 Impacts of anthropogenic water regulation on global riverine dissolved organic carbon transport You, Yanbin Xie, Zhenghui Jia, Binghao Wang, Yan Wang, Longhuan Li, Ruichao Yan, Heng Tian, Yuhang Chen, Si 2023-09 electronic https://doi.org/10.5194/esd-14-897-2023 https://noa.gwlb.de/receive/cop_mods_00068639 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00067058/esd-14-897-2023.pdf https://esd.copernicus.org/articles/14/897/2023/esd-14-897-2023.pdf eng eng Copernicus Publications Earth System Dynamics -- http://www.earth-syst-dynam.net/ -- http://www.bibliothek.uni-regensburg.de/ezeit/?2578793 -- 2190-4987 https://doi.org/10.5194/esd-14-897-2023 https://noa.gwlb.de/receive/cop_mods_00068639 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00067058/esd-14-897-2023.pdf https://esd.copernicus.org/articles/14/897/2023/esd-14-897-2023.pdf https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2023 ftnonlinearchiv https://doi.org/10.5194/esd-14-897-2023 2023-09-10T23:21:45Z Anthropogenic water regulation activities, including reservoir interception, surface water withdrawal, and groundwater extraction, alter riverine hydrologic processes and affect dissolved organic carbon (DOC) export from land to rivers and oceans. In this study, schemes describing soil DOC leaching, riverine DOC transport, and anthropogenic water regulation were developed and incorporated into the Community Land Model 5.0 (CLM5.0) and the River Transport Model (RTM). Three simulations by the developed model were conducted on a global scale from 1981–2013 to investigate the impacts of anthropogenic water regulation on riverine DOC transport. The validation results showed that DOC exports simulated by the developed model were in good agreement with global river observations. The simulations showed that DOC transport in most rivers was mainly influenced by reservoir interception and surface water withdrawal, especially in central North America and eastern China. Four major rivers, including the Danube, Yangtze, Mississippi, and Ganges rivers, have experienced reduced riverine DOC flows due to intense water management, with the largest effect occurring in winter and early spring. In the Danube and Yangtze river basins, the impact in 2013 was 4 to 5 times greater than in 1981, with a retention efficiency of over 50 %. The Ob river basin was almost unaffected. The total impact of anthropogenic water regulation reduced global annual riverine DOC exports to the ocean by approximately 13.36 ± 2.45 Tg C yr−1, and this effect increased from 4.83 % to 6.20 % during 1981–2013, particularly in the Pacific and Atlantic oceans. Article in Journal/Newspaper ob river Niedersächsisches Online-Archiv NOA Pacific Earth System Dynamics 14 5 897 914 |
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article Verlagsveröffentlichung You, Yanbin Xie, Zhenghui Jia, Binghao Wang, Yan Wang, Longhuan Li, Ruichao Yan, Heng Tian, Yuhang Chen, Si Impacts of anthropogenic water regulation on global riverine dissolved organic carbon transport |
topic_facet |
article Verlagsveröffentlichung |
description |
Anthropogenic water regulation activities, including reservoir interception, surface water withdrawal, and groundwater extraction, alter riverine hydrologic processes and affect dissolved organic carbon (DOC) export from land to rivers and oceans. In this study, schemes describing soil DOC leaching, riverine DOC transport, and anthropogenic water regulation were developed and incorporated into the Community Land Model 5.0 (CLM5.0) and the River Transport Model (RTM). Three simulations by the developed model were conducted on a global scale from 1981–2013 to investigate the impacts of anthropogenic water regulation on riverine DOC transport. The validation results showed that DOC exports simulated by the developed model were in good agreement with global river observations. The simulations showed that DOC transport in most rivers was mainly influenced by reservoir interception and surface water withdrawal, especially in central North America and eastern China. Four major rivers, including the Danube, Yangtze, Mississippi, and Ganges rivers, have experienced reduced riverine DOC flows due to intense water management, with the largest effect occurring in winter and early spring. In the Danube and Yangtze river basins, the impact in 2013 was 4 to 5 times greater than in 1981, with a retention efficiency of over 50 %. The Ob river basin was almost unaffected. The total impact of anthropogenic water regulation reduced global annual riverine DOC exports to the ocean by approximately 13.36 ± 2.45 Tg C yr−1, and this effect increased from 4.83 % to 6.20 % during 1981–2013, particularly in the Pacific and Atlantic oceans. |
format |
Article in Journal/Newspaper |
author |
You, Yanbin Xie, Zhenghui Jia, Binghao Wang, Yan Wang, Longhuan Li, Ruichao Yan, Heng Tian, Yuhang Chen, Si |
author_facet |
You, Yanbin Xie, Zhenghui Jia, Binghao Wang, Yan Wang, Longhuan Li, Ruichao Yan, Heng Tian, Yuhang Chen, Si |
author_sort |
You, Yanbin |
title |
Impacts of anthropogenic water regulation on global riverine dissolved organic carbon transport |
title_short |
Impacts of anthropogenic water regulation on global riverine dissolved organic carbon transport |
title_full |
Impacts of anthropogenic water regulation on global riverine dissolved organic carbon transport |
title_fullStr |
Impacts of anthropogenic water regulation on global riverine dissolved organic carbon transport |
title_full_unstemmed |
Impacts of anthropogenic water regulation on global riverine dissolved organic carbon transport |
title_sort |
impacts of anthropogenic water regulation on global riverine dissolved organic carbon transport |
publisher |
Copernicus Publications |
publishDate |
2023 |
url |
https://doi.org/10.5194/esd-14-897-2023 https://noa.gwlb.de/receive/cop_mods_00068639 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00067058/esd-14-897-2023.pdf https://esd.copernicus.org/articles/14/897/2023/esd-14-897-2023.pdf |
geographic |
Pacific |
geographic_facet |
Pacific |
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ob river |
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ob river |
op_relation |
Earth System Dynamics -- http://www.earth-syst-dynam.net/ -- http://www.bibliothek.uni-regensburg.de/ezeit/?2578793 -- 2190-4987 https://doi.org/10.5194/esd-14-897-2023 https://noa.gwlb.de/receive/cop_mods_00068639 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00067058/esd-14-897-2023.pdf https://esd.copernicus.org/articles/14/897/2023/esd-14-897-2023.pdf |
op_rights |
https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/esd-14-897-2023 |
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Earth System Dynamics |
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14 |
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897 |
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