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Carbonaceous matter in glacier at the headwaters of the Yangtze River: Concentration, sources and fractionation during the melting process

文献类型：期刊论文

作者Hu, Zhaofu1,6; Kang, Shichang3,6; He, Xiaobo6; Yan, Fangping4; Zhang, Yulan6; Chen, Pengfei6; Li, Xiaofei2; Gao, Shaopeng5; Li, Chaoliu3,5
刊名JOURNAL OF ENVIRONMENTAL SCIENCES
出版日期2020
卷号87页码:389-397
关键词Carbonaceous matter Major ions Melting process Light absorption characteristic Tibetan Plateau
ISSN号1001-0742
DOI10.1016/j.jes.2019.08.001
通讯作者Kang, Shichang(shichang.kang@lzb.ac.cn) ; Li, Chaoliu(lichaoliu@itpcas.ac.cn)
英文摘要Carbonaceous matter has an important impact on glacial retreat in the Tibetan Plateau, further affecting the water resource supply. However, the related studies on carbonaceous matter are still scarce in Geladaindong (GLDD) region, the source of the Yangtze River. Therefore, the concentration, source and variations of carbonaceous matter at Ganglongjiama (GLJM) glacier in GLDD region were investigated during the melting period in 2017, which could deepen our understanding on carbonaceous matter contribution to glacier melting. The results showed that dissolved organic carbon (DOC) concentration of snowpit samples (283 +/- 200 mu g/L) was much lower than that of precipitation samples (624 +/- 361 mu g/L), indicating that large parts of DOC could be rapidly leached from the snowpit during the melting process. In contrast, refractory black carbon (rBC) concentration measured by Single Particle Soot Photometer of snowpit samples (4.27 +/- 3.15 mu g/L) was much higher than that of precipitation samples (0.97 +/- 0.49 mu g/L). Similarly, DOC with high mass absorption cross-section measured at 365 nm value was also likely to enrich in snowpit during the melting process. In addition, it was found that both rBC and DOC with high light-absorbing ability began to leach from the snowpit when melting process became stronger. Therefore, rBC and DOC with high light-absorbing ability exhibited similar behavior during the melting process. Based on relationship among DOC, rBC and K+ in precipitation, the main source of carbonaceous matter in GLJM glacier was biomass burning during the study period. (c) 2019 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.
WOS关键词DISSOLVED ORGANIC-CARBON ; LIGHT-ABSORBING IMPURITIES ; TIBETAN PLATEAU ; BLACK CARBON ; ABSORPTION CHARACTERISTICS ; ICE CORE ; ELEMENTAL CARBON ; REMOTE STATIONS ; SNOW ; AEROSOLS
资助项目National Nature Science Foundation of China[41630754] ; National Nature Science Foundation of China[41675130] ; State Key Laboratory of Cryospheric Science[SKLCS-ZZ-2019] ; China Postdoctoral Science Foundation[2018M631215]
WOS研究方向Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000499953500035
出版者SCIENCE PRESS
资助机构National Nature Science Foundation of China ; State Key Laboratory of Cryospheric Science ; China Postdoctoral Science Foundation
源URL[http://ir.ieecas.cn/handle/361006/12987]  
专题地球环境研究所_粉尘与环境研究室
通讯作者Kang, Shichang; Li, Chaoliu
作者单位1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, Xian 710000, Shaanxi, Peoples R China
3.Chinese Acad Sci, CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China
4.Lappeenranta Lahti Univ Technol LUT, Sch Engn Sci, Dept Green Chem, Sammonkatu 12, FI-50130 Mikkeli, Finland
5.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing 100085, Peoples R China
6.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式
GB/T 7714		 Hu, Zhaofu,Kang, Shichang,He, Xiaobo,et al. Carbonaceous matter in glacier at the headwaters of the Yangtze River: Concentration, sources and fractionation during the melting process[J]. JOURNAL OF ENVIRONMENTAL SCIENCES,2020,87:389-397.
APA Hu, Zhaofu.,Kang, Shichang.,He, Xiaobo.,Yan, Fangping.,Zhang, Yulan.,...&Li, Chaoliu.(2020).Carbonaceous matter in glacier at the headwaters of the Yangtze River: Concentration, sources and fractionation during the melting process.JOURNAL OF ENVIRONMENTAL SCIENCES,87,389-397.
MLA Hu, Zhaofu,et al."Carbonaceous matter in glacier at the headwaters of the Yangtze River: Concentration, sources and fractionation during the melting process".JOURNAL OF ENVIRONMENTAL SCIENCES 87(2020):389-397.

入库方式： OAI收割

来源：地球环境研究所

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