气候变化领域集成服务门户(CCPortal): Black carbon in surface soil of the Himalayas and Tibetan Plateau and its contribution to total black carbon deposition at glacial region

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DOI	10.1007/s11356-019-07121-7
	Black carbon in surface soil of the Himalayas and Tibetan Plateau and its contribution to total black carbon deposition at glacial region
	Gautam S.; Yan F.; Kang S.; Han X.; Neupane B.; Chen P.; Hu Z.; Sillanpää M.; Li C.
发表日期	2020
ISSN	3003604
起始页码	2670
结束页码	2676
卷号	27 期号:3
英文摘要	At present, the glaciers in the Himalayas and the Tibetan Plateau (HTP) are retreating partly due to albedo reduction caused by deposited light-absorbing impurities such as mineral dust (MD) and black carbon (BC). Because BC also exists widely in MD from surface soil, it is necessary to further evaluate the contribution of BC from MD to the total BC at glacier region. This will help to improve the study of BC sources by considering the relative contributions from MD and direct combustion sources. Therefore, in this study, concentrations of total organic carbon (TOC) and fine particles of BC from 43 surface soil samples of the HTP were investigated. The contribution of BC from MD to total BC deposited at the glacier region was evaluated. The results showed strong correlations between TOC and BC of studied samples (R2 = 0.70, p < 0.01), suggesting that they have similar sources and activity characteristics. The average BC concentration of studied samples was 2.02 ± 1.55 mg g−1, much lower than those of particles deposited at the glacier region and other regions with high soil TOC concentration. The contributions of BC from MD to total surface BC at two glaciers of the inner HTP (Zhadang and Xiaodongkemadi) were 17.66 ± 10.84% and 20.70 ± 16.35%, respectively. Therefore, the contribution of MD to glacier melting of the HTP is higher than that of previously assumed after BC coming along with MD is considered. Because MD concentration is higher at north and west part of the HTP, the contributions of MD at these glacier regions should be larger than previously assumed. © 2019, Springer-Verlag GmbH Germany, part of Springer Nature.
英文关键词	Black carbon; Glacier; Mineral dust; Surface soil; The Himalayas and Tibetan Plateau; Total organic carbon
语种	英语
scopus关键词	Environmental Science and Pollution Research
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/158487
作者单位	Key Laboratory of Tibetan Environment Changes and Land Surface Processes, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing, 100101, China; University of Chinese Academy of Sciences, Beijing, 100049, China; Department of Green Chemistry, LUT University, Sammonkatu 12, Mikkeli, 50130, Finland; State Key Laboratory of Cryospheric Science, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China; CAS Center for Excellence in Tibetan Plateau Earth Sciences, Chinese Academy of Sciences, Beijing, 100085, China
推荐引用方式 GB/T 7714	Gautam S.,Yan F.,Kang S.,et al. Black carbon in surface soil of the Himalayas and Tibetan Plateau and its contribution to total black carbon deposition at glacial region[J]. 中国科学院西北生态环境资源研究院,2020,27(3).
APA	Gautam S..,Yan F..,Kang S..,Han X..,Neupane B..,...&Li C..(2020).Black carbon in surface soil of the Himalayas and Tibetan Plateau and its contribution to total black carbon deposition at glacial region.,27(3).
MLA	Gautam S.,et al."Black carbon in surface soil of the Himalayas and Tibetan Plateau and its contribution to total black carbon deposition at glacial region".27.3(2020).