Carbon transportation, transformation, and sedimentation processes at the land-river-estuary continuum
In terrestrial ecosystems, carbon (C) transportation and C pool transformation processes both occur at the land-river-estuary continuum. Moreover, C budget and C balance processes are generally critical in achieving the C neutrality of terrestrial ecosystems. This study analyzes key C transportation...
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| Format: | Article |
| Language: | English |
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KeAi Communications Co. Ltd.
2024-11-01
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| Series: | Fundamental Research |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2667325822002989 |
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| author | Yang Gao Junjie Jia Yao Lu Kun Sun Jing Wang Shuoyue Wang |
| author_facet | Yang Gao Junjie Jia Yao Lu Kun Sun Jing Wang Shuoyue Wang |
| author_sort | Yang Gao |
| collection | DOAJ |
| description | In terrestrial ecosystems, carbon (C) transportation and C pool transformation processes both occur at the land-river-estuary continuum. Moreover, C budget and C balance processes are generally critical in achieving the C neutrality of terrestrial ecosystems. This study analyzes key C transportation processes at multiple interfaces that collectively constitute the land-river-estuary continuum, discusses C transportation and sedimentation processes at the land-river interface, and reveals aquatic plant C sequestration coupling processes and associated productivity. Transformation mechanisms of inorganic-organic C pools are also investigated here as well as a systematic evaluation of C transport flux within the different interfaces that constitute the land-river-estuary continuum. Results show that the net C sink of terrestrial ecosystems was 1.70 Pg C yr−1, wherein the gross primary productivity (GPP) of global terrestrial vegetation reached 123 Pg C yr−1, while rock weathering also consumed 0.30 Pg C yr−1 of atmospheric carbon dioxide (CO2). Subsequently, the C transported by the land-river-estuary continuum reached 1.70 Pg C yr−1. During this process, 0.20 Pg C is deposited and buried in inland water and 1.00 Pg C escapes from inland water systems each year. Therefore, only 0.85 Pg C is transported to the estuary. Finally, this study clarifies control mechanisms of C transportation and transformation processes at the land-river-estuary continuum. The aim of this study is to provide an important scientific basis for the quantitative analysis of C sources and sinks at the land-river-estuary continuum and C neutrality of the biosphere. |
| format | Article |
| id | doaj-art-ad40076aeca24744a470decf71cad3b0 |
| institution | Kabale University |
| issn | 2667-3258 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | KeAi Communications Co. Ltd. |
| record_format | Article |
| series | Fundamental Research |
| spelling | doaj-art-ad40076aeca24744a470decf71cad3b02024-12-01T05:08:45ZengKeAi Communications Co. Ltd.Fundamental Research2667-32582024-11-014615941602Carbon transportation, transformation, and sedimentation processes at the land-river-estuary continuumYang Gao0Junjie Jia1Yao Lu2Kun Sun3Jing Wang4Shuoyue Wang5Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China; Corresponding author.Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, ChinaKey Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, ChinaKey Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, ChinaKey Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, ChinaKey Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, ChinaIn terrestrial ecosystems, carbon (C) transportation and C pool transformation processes both occur at the land-river-estuary continuum. Moreover, C budget and C balance processes are generally critical in achieving the C neutrality of terrestrial ecosystems. This study analyzes key C transportation processes at multiple interfaces that collectively constitute the land-river-estuary continuum, discusses C transportation and sedimentation processes at the land-river interface, and reveals aquatic plant C sequestration coupling processes and associated productivity. Transformation mechanisms of inorganic-organic C pools are also investigated here as well as a systematic evaluation of C transport flux within the different interfaces that constitute the land-river-estuary continuum. Results show that the net C sink of terrestrial ecosystems was 1.70 Pg C yr−1, wherein the gross primary productivity (GPP) of global terrestrial vegetation reached 123 Pg C yr−1, while rock weathering also consumed 0.30 Pg C yr−1 of atmospheric carbon dioxide (CO2). Subsequently, the C transported by the land-river-estuary continuum reached 1.70 Pg C yr−1. During this process, 0.20 Pg C is deposited and buried in inland water and 1.00 Pg C escapes from inland water systems each year. Therefore, only 0.85 Pg C is transported to the estuary. Finally, this study clarifies control mechanisms of C transportation and transformation processes at the land-river-estuary continuum. The aim of this study is to provide an important scientific basis for the quantitative analysis of C sources and sinks at the land-river-estuary continuum and C neutrality of the biosphere.http://www.sciencedirect.com/science/article/pii/S2667325822002989Land-river-estuary continuumCarbon neutralityCarbon source and sinkCarbon transportationCarbon sedimentationCarbon cycle |
| spellingShingle | Yang Gao Junjie Jia Yao Lu Kun Sun Jing Wang Shuoyue Wang Carbon transportation, transformation, and sedimentation processes at the land-river-estuary continuum Fundamental Research Land-river-estuary continuum Carbon neutrality Carbon source and sink Carbon transportation Carbon sedimentation Carbon cycle |
| title | Carbon transportation, transformation, and sedimentation processes at the land-river-estuary continuum |
| title_full | Carbon transportation, transformation, and sedimentation processes at the land-river-estuary continuum |
| title_fullStr | Carbon transportation, transformation, and sedimentation processes at the land-river-estuary continuum |
| title_full_unstemmed | Carbon transportation, transformation, and sedimentation processes at the land-river-estuary continuum |
| title_short | Carbon transportation, transformation, and sedimentation processes at the land-river-estuary continuum |
| title_sort | carbon transportation transformation and sedimentation processes at the land river estuary continuum |
| topic | Land-river-estuary continuum Carbon neutrality Carbon source and sink Carbon transportation Carbon sedimentation Carbon cycle |
| url | http://www.sciencedirect.com/science/article/pii/S2667325822002989 |
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