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, Quanlian; Wang, Ninglian; Barbante, Carlo; Kang, Shichang; Callegaro, Alice; Battistel, Dario; Argiriadis, Elena; Wan, Xin; Yao, Ping; Pu, Tao; Wu, Xiaobo; Han, Yu; Huai, Yanping
通讯作者	Li, QL (通讯作者)
发表日期	2019
ISSN	0269-7491
EISSN	1873-6424
起始页码	209
结束页码	217
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 Murtag 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, Murtag, Qiyi and Laohugou glaciers are derived from the combustion of different types of biomass including softwood, hardwood and grass. (C) 2018 Elsevier Ltd. All rights reserved.
关键词	FINE-PARTICLE EMISSIONS POLYCYCLIC AROMATIC-HYDROCARBONS CHEMICAL-CHARACTERIZATION FIREPLACE COMBUSTION ORGANIC-MATTER ASIA BIOMASS SOUTH-ASIA LEVOGLUCOSAN NORTHERN TRACERS
英文关键词	Biomass burning; Levoglucosan; Retene; Tibetan plateau; Cryoconites
语种	英语
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
WOS记录号	WOS:000452940700024
来源期刊	ENVIRONMENTAL POLLUTION
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/259629
推荐引用方式 GB/T 7714	Li, Quanlian,Wang, Ninglian,Barbante, Carlo,et al. Biomass burning source identification through molecular markers in cryoconites over the Tibetan Plateau[J]. 中国科学院青藏高原研究所,2019,244.
APA	Li, Quanlian.,Wang, Ninglian.,Barbante, Carlo.,Kang, Shichang.,Callegaro, Alice.,...&Huai, Yanping.(2019).Biomass burning source identification through molecular markers in cryoconites over the Tibetan Plateau.ENVIRONMENTAL POLLUTION,244.
MLA	Li, Quanlian,et al."Biomass burning source identification through molecular markers in cryoconites over the Tibetan Plateau".ENVIRONMENTAL POLLUTION 244(2019).