Effects of the Hydrology-Water Chemistry Factors of the Xijiang River Basin on the Carbon Sink Flux in the Karst System
The river carbon sink flux is important for the global carbon cycle and finding the missing carbon sink. Hydrogeological features are important parts of the karst dynamic system. In order to analyze the long-term trend and flux changes of river carbon sink, the Wuzhou section of Xijiang that was sig...
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| Format: | Article |
| Language: | English |
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Science Press, PR China
2016-11-01
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| Series: | Yankuang ceshi |
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| Online Access: | http://www.ykcs.ac.cn/en/article/doi/10.15898/j.cnki.11-2131/td.2016.06.011 |
| _version_ | 1811168526128381952 |
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| author | HUANG Jie YU Shi LUO Hui-xian LIN Dan-hui |
| author_facet | HUANG Jie YU Shi LUO Hui-xian LIN Dan-hui |
| author_sort | HUANG Jie |
| collection | DOAJ |
| description | The river carbon sink flux is important for the global carbon cycle and finding the missing carbon sink. Hydrogeological features are important parts of the karst dynamic system. In order to analyze the long-term trend and flux changes of river carbon sink, the Wuzhou section of Xijiang that was significantly affected by the wet monsoon climate was selected as the study object. In this paper, the effects of the hydrology and chemistry factors such as flow, water level, rainfall, water temperature, pH, EC, Ca2+, HCO-3 of Xijiang river basin from 2011 to 2015 on the river carbon sink flux are discussed. Results show that ① there is a good correlation of river carbon sink flux with the flow and water? level?(correlation coefficients>0.95). The carbon sink flux varies with flow and the good correlation between the carbon sink flux and water level was reflected by the effect of water level on the flow. The rainfall enters a river by different ways, which directly changes the run off in surface and further affects the river carbon sink flux.②The effect of water temperature on the river carbon sink flux was secondary and related to the climate of summer and monsoon of the Xijiang river basin during the same period. ③The pH has no obvious effect on the river carbon sink flux because the monitor point water is weakly alkaline. The EC, Ca2+ or HCO3- were mainly affected by flow and have little effect on the carbon sink flux. Therefore, the flow is the most important factor for the carbon sink flux. |
| first_indexed | 2024-04-10T16:27:36Z |
| format | Article |
| id | doaj.art-0e383d9c569046fc9b724c9eda51bf18 |
| institution | Directory Open Access Journal |
| issn | 0254-5357 |
| language | English |
| last_indexed | 2024-04-10T16:27:36Z |
| publishDate | 2016-11-01 |
| publisher | Science Press, PR China |
| record_format | Article |
| series | Yankuang ceshi |
| spelling | doaj.art-0e383d9c569046fc9b724c9eda51bf182023-02-09T01:25:39ZengScience Press, PR ChinaYankuang ceshi0254-53572016-11-0135664264910.15898/j.cnki.11-2131/td.2016.06.011ykcs-35-6-642Effects of the Hydrology-Water Chemistry Factors of the Xijiang River Basin on the Carbon Sink Flux in the Karst SystemHUANG Jie0YU Shi1LUO Hui-xian2LIN Dan-hui3Wuzhou Hydrology and Water Resources Bureau, Wuzhou 543000, ChinaCollege of Environment, China University of Geosciences(Wuhan), Wuhan 430074, ChinaWuzhou Hydrology and Water Resources Bureau, Wuzhou 543000, ChinaWuzhou Hydrology and Water Resources Bureau, Wuzhou 543000, ChinaThe river carbon sink flux is important for the global carbon cycle and finding the missing carbon sink. Hydrogeological features are important parts of the karst dynamic system. In order to analyze the long-term trend and flux changes of river carbon sink, the Wuzhou section of Xijiang that was significantly affected by the wet monsoon climate was selected as the study object. In this paper, the effects of the hydrology and chemistry factors such as flow, water level, rainfall, water temperature, pH, EC, Ca2+, HCO-3 of Xijiang river basin from 2011 to 2015 on the river carbon sink flux are discussed. Results show that ① there is a good correlation of river carbon sink flux with the flow and water? level?(correlation coefficients>0.95). The carbon sink flux varies with flow and the good correlation between the carbon sink flux and water level was reflected by the effect of water level on the flow. The rainfall enters a river by different ways, which directly changes the run off in surface and further affects the river carbon sink flux.②The effect of water temperature on the river carbon sink flux was secondary and related to the climate of summer and monsoon of the Xijiang river basin during the same period. ③The pH has no obvious effect on the river carbon sink flux because the monitor point water is weakly alkaline. The EC, Ca2+ or HCO3- were mainly affected by flow and have little effect on the carbon sink flux. Therefore, the flow is the most important factor for the carbon sink flux.http://www.ykcs.ac.cn/en/article/doi/10.15898/j.cnki.11-2131/td.2016.06.011xijiang river basincarbon sinkshydrology-water chemistry factorsflow |
| spellingShingle | HUANG Jie YU Shi LUO Hui-xian LIN Dan-hui Effects of the Hydrology-Water Chemistry Factors of the Xijiang River Basin on the Carbon Sink Flux in the Karst System Yankuang ceshi xijiang river basin carbon sinks hydrology-water chemistry factors flow |
| title | Effects of the Hydrology-Water Chemistry Factors of the Xijiang River Basin on the Carbon Sink Flux in the Karst System |
| title_full | Effects of the Hydrology-Water Chemistry Factors of the Xijiang River Basin on the Carbon Sink Flux in the Karst System |
| title_fullStr | Effects of the Hydrology-Water Chemistry Factors of the Xijiang River Basin on the Carbon Sink Flux in the Karst System |
| title_full_unstemmed | Effects of the Hydrology-Water Chemistry Factors of the Xijiang River Basin on the Carbon Sink Flux in the Karst System |
| title_short | Effects of the Hydrology-Water Chemistry Factors of the Xijiang River Basin on the Carbon Sink Flux in the Karst System |
| title_sort | effects of the hydrology water chemistry factors of the xijiang river basin on the carbon sink flux in the karst system |
| topic | xijiang river basin carbon sinks hydrology-water chemistry factors flow |
| url | http://www.ykcs.ac.cn/en/article/doi/10.15898/j.cnki.11-2131/td.2016.06.011 |
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