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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ftdoajarticles:oai:doaj.org/article:ed25b63bfe4a40ac9b4741f4aa2c4424 2023-10-09T21:54:45+02:00 Impacts of anthropogenic water regulation on global riverine dissolved organic carbon transport Y. You Z. Xie B. Jia Y. Wang L. Wang R. Li H. Yan Y. Tian S. Chen 2023-09-01T00:00:00Z https://doi.org/10.5194/esd-14-897-2023 https://doaj.org/article/ed25b63bfe4a40ac9b4741f4aa2c4424 EN eng Copernicus Publications https://esd.copernicus.org/articles/14/897/2023/esd-14-897-2023.pdf https://doaj.org/toc/2190-4979 https://doaj.org/toc/2190-4987 doi:10.5194/esd-14-897-2023 2190-4979 2190-4987 https://doaj.org/article/ed25b63bfe4a40ac9b4741f4aa2c4424 Earth System Dynamics, Vol 14, Pp 897-914 (2023) Science Q Geology QE1-996.5 Dynamic and structural geology QE500-639.5 article 2023 ftdoajarticles https://doi.org/10.5194/esd-14-897-2023 2023-09-10T00:38:43Z 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 Directory of Open Access Journals: DOAJ Articles Pacific Earth System Dynamics 14 5 897 914 |
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Science Q Geology QE1-996.5 Dynamic and structural geology QE500-639.5 |
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Science Q Geology QE1-996.5 Dynamic and structural geology QE500-639.5 Y. You Z. Xie B. Jia Y. Wang L. Wang R. Li H. Yan Y. Tian S. Chen Impacts of anthropogenic water regulation on global riverine dissolved organic carbon transport |
topic_facet |
Science Q Geology QE1-996.5 Dynamic and structural geology QE500-639.5 |
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 |
Y. You Z. Xie B. Jia Y. Wang L. Wang R. Li H. Yan Y. Tian S. Chen |
author_facet |
Y. You Z. Xie B. Jia Y. Wang L. Wang R. Li H. Yan Y. Tian S. Chen |
author_sort |
Y. You |
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://doaj.org/article/ed25b63bfe4a40ac9b4741f4aa2c4424 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
ob river |
genre_facet |
ob river |
op_source |
Earth System Dynamics, Vol 14, Pp 897-914 (2023) |
op_relation |
https://esd.copernicus.org/articles/14/897/2023/esd-14-897-2023.pdf https://doaj.org/toc/2190-4979 https://doaj.org/toc/2190-4987 doi:10.5194/esd-14-897-2023 2190-4979 2190-4987 https://doaj.org/article/ed25b63bfe4a40ac9b4741f4aa2c4424 |
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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5 |
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897 |
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