Export of Dissolved Organic Carbon from the Source Region of Yangtze River in the Tibetan Plateau
The carbon release and transport in rivers are expected to increase in a warming climate with enhanced melting. We present a continuous dataset of DOC in the river, precipitation, and groundwater, including air temperature, discharge, and precipitation in the source region of the Yangtze River (SRYR...
Published in: | Sustainability |
---|---|
Main Authors: | , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2022
|
Subjects: | |
Online Access: | https://pure.au.dk/portal/en/publications/4fc4f629-a4fa-4b01-af15-760de8a6b10a https://doi.org/10.3390/su14042441 http://www.scopus.com/inward/record.url?scp=85125071099&partnerID=8YFLogxK |
id |
ftuniaarhuspubl:oai:pure.atira.dk:publications/4fc4f629-a4fa-4b01-af15-760de8a6b10a |
---|---|
record_format |
openpolar |
spelling |
ftuniaarhuspubl:oai:pure.atira.dk:publications/4fc4f629-a4fa-4b01-af15-760de8a6b10a 2024-02-04T10:03:53+01:00 Export of Dissolved Organic Carbon from the Source Region of Yangtze River in the Tibetan Plateau You, Xiaoni Li, Xiangying Sillanpää, Mika Wang, Rong Wu, Chengyong Xu, Qiangqiang 2022-02 https://pure.au.dk/portal/en/publications/4fc4f629-a4fa-4b01-af15-760de8a6b10a https://doi.org/10.3390/su14042441 http://www.scopus.com/inward/record.url?scp=85125071099&partnerID=8YFLogxK eng eng https://pure.au.dk/portal/en/publications/4fc4f629-a4fa-4b01-af15-760de8a6b10a info:eu-repo/semantics/openAccess You , X , Li , X , Sillanpää , M , Wang , R , Wu , C & Xu , Q 2022 , ' Export of Dissolved Organic Carbon from the Source Region of Yangtze River in the Tibetan Plateau ' , Sustainability (Switzerland) , vol. 14 , no. 4 , 2441 . https://doi.org/10.3390/su14042441 DOC Groundwater Precipitation River water Yangtze River article 2022 ftuniaarhuspubl https://doi.org/10.3390/su14042441 2024-01-11T00:01:53Z The carbon release and transport in rivers are expected to increase in a warming climate with enhanced melting. We present a continuous dataset of DOC in the river, precipitation, and groundwater, including air temperature, discharge, and precipitation in the source region of the Yangtze River (SRYR). Our study shows that the average concentrations of DOC in the three end-members are characterized as the sequence of groundwater > precipitation > river, which is related to the water volume, cycle period, and river flow speed. The seasonality of DOC in the river is observed as the obvious bimodal structure at Tuotuohe (TTH) and Zhimenda (ZMD) gauging stations. The highest concentration appears in July (2.4 mg L −1 at TTH and 2.1 mg L −1 at ZMD) and the secondary high value (2.2 mg L −1 at TTH 1.9 mg L −1 at ZMD) emerges from August to September. It is estimated that 459 and 6751 tons of DOC are transported by the river at TTH and ZMD, respectively. Although the wet deposition flux of DOC is nearly ten times higher than the river flux, riverine DOC still primarily originates from soil erosion of the basin rather than precipitation settlement. Riverine DOC fluxes are positively correlated with discharge, suggesting DOC fluxes are likely to increase in the future. Our findings highlight that permafrost degradation and glacier retreat have a great effect on DOC concentration in rivers and may become increasingly important for regional biogeochemical cycles. Article in Journal/Newspaper permafrost Aarhus University: Research Sustainability 14 4 2441 |
institution |
Open Polar |
collection |
Aarhus University: Research |
op_collection_id |
ftuniaarhuspubl |
language |
English |
topic |
DOC Groundwater Precipitation River water Yangtze River |
spellingShingle |
DOC Groundwater Precipitation River water Yangtze River You, Xiaoni Li, Xiangying Sillanpää, Mika Wang, Rong Wu, Chengyong Xu, Qiangqiang Export of Dissolved Organic Carbon from the Source Region of Yangtze River in the Tibetan Plateau |
topic_facet |
DOC Groundwater Precipitation River water Yangtze River |
description |
The carbon release and transport in rivers are expected to increase in a warming climate with enhanced melting. We present a continuous dataset of DOC in the river, precipitation, and groundwater, including air temperature, discharge, and precipitation in the source region of the Yangtze River (SRYR). Our study shows that the average concentrations of DOC in the three end-members are characterized as the sequence of groundwater > precipitation > river, which is related to the water volume, cycle period, and river flow speed. The seasonality of DOC in the river is observed as the obvious bimodal structure at Tuotuohe (TTH) and Zhimenda (ZMD) gauging stations. The highest concentration appears in July (2.4 mg L −1 at TTH and 2.1 mg L −1 at ZMD) and the secondary high value (2.2 mg L −1 at TTH 1.9 mg L −1 at ZMD) emerges from August to September. It is estimated that 459 and 6751 tons of DOC are transported by the river at TTH and ZMD, respectively. Although the wet deposition flux of DOC is nearly ten times higher than the river flux, riverine DOC still primarily originates from soil erosion of the basin rather than precipitation settlement. Riverine DOC fluxes are positively correlated with discharge, suggesting DOC fluxes are likely to increase in the future. Our findings highlight that permafrost degradation and glacier retreat have a great effect on DOC concentration in rivers and may become increasingly important for regional biogeochemical cycles. |
format |
Article in Journal/Newspaper |
author |
You, Xiaoni Li, Xiangying Sillanpää, Mika Wang, Rong Wu, Chengyong Xu, Qiangqiang |
author_facet |
You, Xiaoni Li, Xiangying Sillanpää, Mika Wang, Rong Wu, Chengyong Xu, Qiangqiang |
author_sort |
You, Xiaoni |
title |
Export of Dissolved Organic Carbon from the Source Region of Yangtze River in the Tibetan Plateau |
title_short |
Export of Dissolved Organic Carbon from the Source Region of Yangtze River in the Tibetan Plateau |
title_full |
Export of Dissolved Organic Carbon from the Source Region of Yangtze River in the Tibetan Plateau |
title_fullStr |
Export of Dissolved Organic Carbon from the Source Region of Yangtze River in the Tibetan Plateau |
title_full_unstemmed |
Export of Dissolved Organic Carbon from the Source Region of Yangtze River in the Tibetan Plateau |
title_sort |
export of dissolved organic carbon from the source region of yangtze river in the tibetan plateau |
publishDate |
2022 |
url |
https://pure.au.dk/portal/en/publications/4fc4f629-a4fa-4b01-af15-760de8a6b10a https://doi.org/10.3390/su14042441 http://www.scopus.com/inward/record.url?scp=85125071099&partnerID=8YFLogxK |
genre |
permafrost |
genre_facet |
permafrost |
op_source |
You , X , Li , X , Sillanpää , M , Wang , R , Wu , C & Xu , Q 2022 , ' Export of Dissolved Organic Carbon from the Source Region of Yangtze River in the Tibetan Plateau ' , Sustainability (Switzerland) , vol. 14 , no. 4 , 2441 . https://doi.org/10.3390/su14042441 |
op_relation |
https://pure.au.dk/portal/en/publications/4fc4f629-a4fa-4b01-af15-760de8a6b10a |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.3390/su14042441 |
container_title |
Sustainability |
container_volume |
14 |
container_issue |
4 |
container_start_page |
2441 |
_version_ |
1789971687809220608 |