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

doi:10.1016/j.jes.2019.08.001

IEECAS OpenIR > 粉尘与环境研究室

	Carbonaceous matter in glacier at the headwaters of the Yangtze River: Concentration, sources and fractionation during the melting process
	Hu, Zhaofu 1,5; Kang, Shichang 1,4; He, Xiaobo 1; Yan, Fangping 3; Zhang, Yulan 1; Chen, Pengfei 1; Li, Xiaofei 6; Gao, Shaopeng 2; Li, Chaoliu 2,4
通讯作者	Kang, Shichang(shichang.kang@lzb.ac.cn) ; Li, Chaoliu(lichaoliu@itpcas.ac.cn)
	2020
发表期刊	JOURNAL OF ENVIRONMENTAL SCIENCES
ISSN	1001-0742
卷号	87 页码:389-397
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.
关键词	Carbonaceous matter Major ions Melting process Light absorption characteristic Tibetan Plateau
DOI	10.1016/j.jes.2019.08.001
关键词[WOS]	DISSOLVED ORGANIC-CARBON ; LIGHT-ABSORBING IMPURITIES ; TIBETAN PLATEAU ; BLACK CARBON ; ABSORPTION CHARACTERISTICS ; ICE CORE ; ELEMENTAL CARBON ; REMOTE STATIONS ; SNOW ; AEROSOLS
收录类别	SCI ; SCI
语种	英语
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
项目资助者	National Nature Science Foundation of China ; State Key Laboratory of Cryospheric Science ; China Postdoctoral Science Foundation
WOS类目	Environmental Sciences
WOS记录号	WOS:000499953500035
出版者	SCIENCE PRESS
引用统计	被引频次：8[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/12988
专题	粉尘与环境研究室
通讯作者	Kang, Shichang; Li, Chaoliu
作者单位	1.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Lanzhou 730000, Gansu, Peoples R China 2.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing 100085, Peoples R China 3.Lappeenranta Lahti Univ Technol LUT, Sch Engn Sci, Dept Green Chem, Sammonkatu 12, FI-50130 Mikkeli, Finland 4.Chinese Acad Sci, CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 6.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, Xian 710000, Shaanxi, 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.