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Carbon concentration and isotope composition of black carbon in the topsoil of the central and southeastern Qinghai-Tibetan Plateau, and their environmental significance
Liu, Lian1; Li, Quan2; Huang, Min1; Yang, Yan1
2019
Source PublicationCATENA
ISSN0341-8162
Volume172Pages:132-139
Corresponding AuthorLiu, Lian(liulian198394@163.com) ; Li, Quan(liquan@igsnrr.ac.cn)
AbstractThe 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.
KeywordTopsoil Black carbon Organic carbon Vegetation Qinghai-Tibetan Plateau
DOI10.1016/j.catena.2018.08.011
WOS KeywordCHINESE LOESS PLATEAU ; SOIL ORGANIC-CARBON ; STABLE CARBON ; RECONSTRUCTING VEGETATION ; ATMOSPHERIC CO2 ; HIGH-ALTITUDE ; SURFACE SOIL ; INDIAN-OCEAN ; ICE CORE ; DELTA-C-13
Indexed BySCI
Language英语
Funding ProjectNational 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]
Funding OrganizationNational Natural Science Foundation of China ; Basic Scientific Research Program of the Chinese Academy of Geological Sciences ; National Key Research and Development Program of China
WOS Research AreaGeology ; Agriculture ; Water Resources
WOS SubjectGeosciences, Multidisciplinary ; Soil Science ; Water Resources
WOS IDWOS:000449136800013
PublisherELSEVIER SCIENCE BV
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/52615
Collection中国科学院地理科学与资源研究所
Corresponding AuthorLiu, Lian; Li, Quan
Affiliation1.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
Recommended Citation
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.
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