气候变化领域集成服务门户(CCPortal): Biomass burning source identification through molecular markers in cryoconites over the Tibetan Plateau

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DOI	10.1016/j.envpol.2018.10.037
	Biomass burning source identification through molecular markers in cryoconites over the Tibetan Plateau
	Li Q.; Wang N.; Barbante C.; Kang S.; Callegaro A.; Battistel D.; Argiriadis E.; Wan X.; Yao P.; Pu T.; Wu X.; Han Y.; Huai Y.
发表日期	2019
ISSN	02697491
卷号	244
英文摘要	Cryoconite is a dark, dusty aggregate of mineral particles, organic matter, and microorganisms transported by wind and deposited on glacier surfaces. It can accelerate glacier melting and alter glacier mass balances by reducing the surface albedo of glaciers. Biomass burning in the Tibetan Plateau, especially in the glacier cryoconites, is poorly understood. Retene, levoglucosan, mannosan and galactosan can be generated by the local fires or transported from the biomass burning regions over long distances. In the present study, we analyzed these four molecular markers in cryoconites of seven glaciers from the northern to southern Tibetan Plateau. The highest levels of levoglucosan and retene were found in cryoconites of the Yulong Snow Mountain and Tienshan glaciers with 171.4 ± 159.4 ng g−1 and 47.0 ± 10.5 ng g−1 dry weight (d.w.), respectively. The Muztag glacier in the central Tibetan Plateau contained the lowest levels of levoglucosan and retene with mean values of 59.8 ng g−1 and 0.4 ± 0.1 ng g−1 d.w., respectively. In addition, the vegetation changes and the ratios of levoglucosan to mannosan and retene indicate that combustion of conifers significantly contributes to biomass burning of the cryoconites in the Yulong Snow Mountain and Tienshan glacier. Conversely, biomass burning tracers in cryoconites of Dongkemadi, Yuzhufeng, Muztag, Qiyi and Laohugou glaciers are derived from the combustion of different types of biomass including softwood, hardwood and grass. © 2018 Elsevier Ltd
英文关键词	Biomass burning;Cryoconites;Levoglucosan;Retene;Tibetan plateau
语种	英语
来源期刊	Environmental Pollution
来源机构	中国科学院西北资源环境生态研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/89569
作者单位	(1)State Key Laboratory of Cryospheric Science, Northwest Institute of Eco-Environment and Resources, CAS, Lanzhou, 730000, China;(2)Shaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity, Xi'an, 710127, China;(3)Institute of Earth Surface System and Hazards, Northwest University, Xi'an, 710127, China;(4)College of Urban and Environmental Sciences, Northwest University, Xi'an, 710127, China;(5)Department of Environmental Sciences, Informatics and Statistics, Ca'Foscari, University of Venice, Venice, 30172, Italy;(6)Institute for the Dynamics of Environmental Processes-CNR, Venice, 30172, Italy;(7)CAS Center for Excellence in Tibetan Plateau Earth Sciences, Beijing, 100085, China;(8)University of Chinese Academy of Sciences, Beijing, 100049, China;(9)Key Laboratory of Tibetan Environment Changes and Land Surface Processes, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing, 100101, China;(10)Surveying and Mapping Engineering Institute of Gansu Province, ...
推荐引用方式 GB/T 7714	Li Q.,Wang N.,Barbante C.,et al. Biomass burning source identification through molecular markers in cryoconites over the Tibetan Plateau[J]. 中国科学院西北资源环境生态研究院,2019,244.
APA	Li Q..,Wang N..,Barbante C..,Kang S..,Callegaro A..,...&Huai Y..(2019).Biomass burning source identification through molecular markers in cryoconites over the Tibetan Plateau.Environmental Pollution,244.
MLA	Li Q.,et al."Biomass burning source identification through molecular markers in cryoconites over the Tibetan Plateau".Environmental Pollution 244(2019).