Sources of hydrochemistry and chemical weathering rate at Urumqi Glacier No.1 catchment in central Asia
Study area: Urumqi Glacier No.1 Catchment in central Asia. Study focus: Chemical weathering at the basin scale is important process for understanding the feedback mechanism of the carbon cycle and climate change. This study mainly used the actual sampling data in 2013, 2014, and 2016, and the first...
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Elsevier
2025-02-01
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| Series: | Journal of Hydrology: Regional Studies |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214581824004567 |
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| author | Qin Yang Xiangying Li Donghui Shangguan Tianding Han |
| author_facet | Qin Yang Xiangying Li Donghui Shangguan Tianding Han |
| author_sort | Qin Yang |
| collection | DOAJ |
| description | Study area: Urumqi Glacier No.1 Catchment in central Asia. Study focus: Chemical weathering at the basin scale is important process for understanding the feedback mechanism of the carbon cycle and climate change. This study mainly used the actual sampling data in 2013, 2014, and 2016, and the first collection from the literature in same catchment to analyze the seasonal and interannual characteristics of meltwater runoff, as well as cation denudation rate (CDR). New hydrological insights for the study region: The dominant ions of meltwater runoff are Ca2 +, HCO3-, and SO42-, which are mainly derived from calcite dissolution, feldspar weathering and sulfide oxidation. Meltwater runoff at Urumqi Glacier No.1 has higher concentrations of Ca2+ and lower concentrations of HCO3- than that from glaciers in Asia. Compared to 2006 and 2007, cation concentrations increased in 2013 and 2014, while SO42- concentration decreased. The daily ion concentration has seasonality and exhibits a negative relationship with discharge. Daily CDR is positively related to discharge and temperature. Annual CDR values range from 12.34 to 19.04 t/km2/yr in 2013, 2014, and 2016, which are 1–1.7 times higher than those in 2006 and 2007 and higher than some glaciers in Asia. These results indicate that chemical weathering rate in the Urumqi Glacier No.1 catchment has increased with climate warming, and it is stronger than that of some glaciers in the Tibetan Plateau and surroundings. |
| format | Article |
| id | doaj-art-a640e047e5e14b49838c2ba2d6225243 |
| institution | Kabale University |
| issn | 2214-5818 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Hydrology: Regional Studies |
| spelling | doaj-art-a640e047e5e14b49838c2ba2d62252432025-01-22T05:42:03ZengElsevierJournal of Hydrology: Regional Studies2214-58182025-02-0157102107Sources of hydrochemistry and chemical weathering rate at Urumqi Glacier No.1 catchment in central AsiaQin Yang0Xiangying Li1Donghui Shangguan2Tianding Han3State Key Laboratory of Cryospheric Science, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China; University of Chinese Academy of Sciences, Beijing 100049, ChinaShaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity, Xi’an 710127, China; College of Urban and Environmental Sciences, Northwest University, Xi’an 710127, ChinaState Key Laboratory of Cryospheric Science, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China; China-Pakistan Joint Research Centre on Earth Sciences, CAS-HEC, Islamabad 45320, Pakistan; Corresponding author at: State Key Laboratory of Cryospheric Science, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China.State Key Laboratory of Cryospheric Science, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, ChinaStudy area: Urumqi Glacier No.1 Catchment in central Asia. Study focus: Chemical weathering at the basin scale is important process for understanding the feedback mechanism of the carbon cycle and climate change. This study mainly used the actual sampling data in 2013, 2014, and 2016, and the first collection from the literature in same catchment to analyze the seasonal and interannual characteristics of meltwater runoff, as well as cation denudation rate (CDR). New hydrological insights for the study region: The dominant ions of meltwater runoff are Ca2 +, HCO3-, and SO42-, which are mainly derived from calcite dissolution, feldspar weathering and sulfide oxidation. Meltwater runoff at Urumqi Glacier No.1 has higher concentrations of Ca2+ and lower concentrations of HCO3- than that from glaciers in Asia. Compared to 2006 and 2007, cation concentrations increased in 2013 and 2014, while SO42- concentration decreased. The daily ion concentration has seasonality and exhibits a negative relationship with discharge. Daily CDR is positively related to discharge and temperature. Annual CDR values range from 12.34 to 19.04 t/km2/yr in 2013, 2014, and 2016, which are 1–1.7 times higher than those in 2006 and 2007 and higher than some glaciers in Asia. These results indicate that chemical weathering rate in the Urumqi Glacier No.1 catchment has increased with climate warming, and it is stronger than that of some glaciers in the Tibetan Plateau and surroundings.http://www.sciencedirect.com/science/article/pii/S2214581824004567Meltwater runoffHydrochemistryCation denudation rateUrumqi Glacier No.1 |
| spellingShingle | Qin Yang Xiangying Li Donghui Shangguan Tianding Han Sources of hydrochemistry and chemical weathering rate at Urumqi Glacier No.1 catchment in central Asia Journal of Hydrology: Regional Studies Meltwater runoff Hydrochemistry Cation denudation rate Urumqi Glacier No.1 |
| title | Sources of hydrochemistry and chemical weathering rate at Urumqi Glacier No.1 catchment in central Asia |
| title_full | Sources of hydrochemistry and chemical weathering rate at Urumqi Glacier No.1 catchment in central Asia |
| title_fullStr | Sources of hydrochemistry and chemical weathering rate at Urumqi Glacier No.1 catchment in central Asia |
| title_full_unstemmed | Sources of hydrochemistry and chemical weathering rate at Urumqi Glacier No.1 catchment in central Asia |
| title_short | Sources of hydrochemistry and chemical weathering rate at Urumqi Glacier No.1 catchment in central Asia |
| title_sort | sources of hydrochemistry and chemical weathering rate at urumqi glacier no 1 catchment in central asia |
| topic | Meltwater runoff Hydrochemistry Cation denudation rate Urumqi Glacier No.1 |
| url | http://www.sciencedirect.com/science/article/pii/S2214581824004567 |
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