Dissolved organic carbon in summer precipitation and its wet deposition flux in the Mt. Yulong region, southeastern Tibetan Plateau

doi:10.1007/s10874-019-9385-8

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所

	Dissolved organic carbon in summer precipitation and its wet deposition flux in the Mt. Yulong region, southeastern Tibetan Plateau
	Niu, Hewen 1,2,3; Kang, Shichang 1,2,4,5; Shi, Xiaofei 2; Zhang, Guotao 6; Wang, Shijin 1,3; Pu, Tao 1,3
刊名	JOURNAL OF ATMOSPHERIC CHEMISTRY
	2019-03-01
卷号	76 期号:1 页码:1-20
关键词	Dissolved organic carbon Mt Yulong Rainfall Wet deposition
ISSN号	0167-7764
DOI	10.1007/s10874-019-9385-8
英文摘要	Dissolved organic carbon (DOC) is an important organic pollutant in the air-water carbon cycle system, potentially influencing the global climate. In this study, 204 rainwater samples from five sampling stations in the Mt. Yulong region were synchronously collected from June to September in 2014. We comprehensively investigated the sources and wet deposition of DOC in summer precipitation. The average concentrations of DOC at five stations ranged from 0.74 to 1.31mgL(-1). The mass absorption efficiency (MAE) of rainwater DOC evaluated at 365nm was 0.43 +/- 0.32m(2)g(-1). Backward trajectory analyses indicated that the southwest advection air parcel accounting for 46% of precipitation events, while the corresponding average concentration of rainwater DOC was 1.25 +/- 0.56mg C L-1. In addition to the local or regional contribution, large amount of atmospheric pollutants were transported from South Asia and Southeast Asia to the Mt. Yulong region, both of which had exerted great influence on the regional atmospheric environment. For the first time, the annual wet deposition of DOC in the Mt. Yulong region was estimated and determined to be 1.99g C m(-2)year(-1). This is significant because the deposition of DOC on glaciers has great influence on surface albedo of snow and glacier melt. This study can bridge the gap of rainwater DOC research between the Mt. Yulong region and the southeast of Tibetan Plateau (TP), which has significant implications for better understanding the relationship of DOC deposition and glacial shrink in the TP.
资助项目	National Natural Science Foundation of China[41721091] ; National Natural Science Foundation of China[41601071] ; National Natural Science Foundation of China[41630754] ; Key Research Program for Frontier Sciences of Chinese Academy of Sciences[QYZDJ-SSW-DQC039] ; Light of West China Program[Y62992] ; China Postdoctoral Science Foundation[2016 T90963] ; China Postdoctoral Science Foundation[2015 M582725]
WOS关键词	LIGHT-ABSORPTION CHARACTERISTICS ; HUMIC-LIKE SUBSTANCES ; ALPINE ICE CORES ; CHEMICAL-COMPOSITION ; ATMOSPHERIC AEROSOL ; BROWN CARBON ; BLACK CARBON ; SNOW ; RAINWATER ; MATTER
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000463214600001
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/25548]
专题	中国科学院水利部成都山地灾害与环境研究所
通讯作者	Kang, Shichang
作者单位	1.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Lanzhou 730000, Gansu, Peoples R China 2.Lanzhou Univ, Coll Earth Environm Sci, Lanzhou 730000, Gansu, Peoples R China 3.Yulong Glacier & Environm Observat & Res Stn, Lijiang 674100, Peoples R China 4.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China 5.UCAS, Beijing 10049, Peoples R China 6.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610046, Sichuan, Peoples R China
推荐引用方式 GB/T 7714	Niu, Hewen,Kang, Shichang,Shi, Xiaofei,et al. Dissolved organic carbon in summer precipitation and its wet deposition flux in the Mt. Yulong region, southeastern Tibetan Plateau[J]. JOURNAL OF ATMOSPHERIC CHEMISTRY,2019,76(1):1-20.
APA	Niu, Hewen,Kang, Shichang,Shi, Xiaofei,Zhang, Guotao,Wang, Shijin,&Pu, Tao.(2019).Dissolved organic carbon in summer precipitation and its wet deposition flux in the Mt. Yulong region, southeastern Tibetan Plateau.JOURNAL OF ATMOSPHERIC CHEMISTRY,76(1),1-20.
MLA	Niu, Hewen,et al."Dissolved organic carbon in summer precipitation and its wet deposition flux in the Mt. Yulong region, southeastern Tibetan Plateau".JOURNAL OF ATMOSPHERIC CHEMISTRY 76.1(2019):1-20.