Carbon concentration and isotope composition of black carbon in the topsoil of the central and southeastern Qinghai-Tibetan Plateau, and their environmental significance

doi:10.1016/j.catena.2018.08.011

	Carbon concentration and isotope composition of black carbon in the topsoil of the central and southeastern Qinghai-Tibetan Plateau, and their environmental significance
	Liu, Lian 1; Li, Quan 2; Huang, Min 1; Yang, Yan 1
刊名	CATENA
	2019
卷号	172 页码:132-139
关键词	Topsoil Black carbon Organic carbon Vegetation Qinghai-Tibetan Plateau
ISSN号	0341-8162
DOI	10.1016/j.catena.2018.08.011
通讯作者	Liu, Lian(liulian198394@163.com) ; Li, Quan(liquan@igsnrr.ac.cn)
英文摘要	The carbon concentration and carbon isotope of black carbon (BC) have been widely used to reconstruct fire history and vegetation change. In order to establish the relationship between BC, contemporary vegetation and climate at the high altitudes of the Qinghai-Tibetan Plateau (QTP), we investigated the carbon concentration and carbon isotope composition of BC and soil organic carbon (SOC) (%BC, %SOC, delta C-13(BC) and delta C-13(SOC)) in 29 topsoil samples from the central and southeastern QTP. In general, the %SOC and %BC of topsoil show generally similar variations, indicating a common controlling factor for SOC and BC production, i.e., vegetation. The relatively small BC/SOC ratios fall in the range of BC/OC for pyrogenic particles from biomass burning, indicating a minor contribution of BC from fossil fuel combustion. The delta C-13(SOC) of topsoil can effectively indicate local vegetation in the QTP. The delta C-13(BC) and delta C-13(SOC) are positively correlated, whereas the delta C-13(BC) values are more negative than those of delta C-13(SOC). This could due to fire season and fractionation processes during post-deposition, but not carbon isotope fractionation during combustion or exogenous BC input. Therefore, BC in topsoil of the QTP mainly records 'local' environmental information, and the delta C-13(BC) can be used in paleovegetation reconstruction in combination with the local climate.
资助项目	National Natural Science Foundation of China[41471169] ; National Natural Science Foundation of China[41102221] ; National Natural Science Foundation of China[41271226] ; National Natural Science Foundation of China[41571189] ; National Natural Science Foundation of China[41330105] ; National Natural Science Foundation of China[41877431] ; Basic Scientific Research Program of the Chinese Academy of Geological Sciences[YWF201609] ; National Key Research and Development Program of China[2016YFA0600501]
WOS关键词	CHINESE LOESS PLATEAU ; SOIL ORGANIC-CARBON ; STABLE CARBON ; RECONSTRUCTING VEGETATION ; ATMOSPHERIC CO2 ; HIGH-ALTITUDE ; SURFACE SOIL ; INDIAN-OCEAN ; ICE CORE ; DELTA-C-13
WOS研究方向	Geology ; Agriculture ; Water Resources
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000449136800013
资助机构	National Natural Science Foundation of China ; Basic Scientific Research Program of the Chinese Academy of Geological Sciences ; National Key Research and Development Program of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/52614]
专题	中国科学院地理科学与资源研究所
通讯作者	Liu, Lian; Li, Quan
作者单位	1.Chinese Acad Geol Sci, 26 Baiwanzhuang Rd, Beijing 100037, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Liu, Lian,Li, Quan,Huang, Min,et al. Carbon concentration and isotope composition of black carbon in the topsoil of the central and southeastern Qinghai-Tibetan Plateau, and their environmental significance[J]. CATENA,2019,172:132-139.
APA	Liu, Lian,Li, Quan,Huang, Min,&Yang, Yan.(2019).Carbon concentration and isotope composition of black carbon in the topsoil of the central and southeastern Qinghai-Tibetan Plateau, and their environmental significance.CATENA,172,132-139.
MLA	Liu, Lian,et al."Carbon concentration and isotope composition of black carbon in the topsoil of the central and southeastern Qinghai-Tibetan Plateau, and their environmental significance".CATENA 172(2019):132-139.