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Spatial distributions and sequestrations of organic carbon and black carbon in soils from the Chinese loess plateau
Zhan, CL (Zhan, Changlin)[ 1,2,4 ]; Cao, JJ (Cao, Junji)[ 2,3 ]; Han, YM (Han, Yongming)[ 2 ]; Huang, SP (Huang, Shaopeng)[ 3 ]; Tu, XM (Tu, Xiaming)[ 2 ]; Wang, P (Wang, Ping)[ 2,4 ]; An, ZS (An, Zhisheng)[ 2 ]
2013-11-01
Source PublicationSCIENCE OF THE TOTAL ENVIRONMENT
Volume465Issue:SIPages:255-266
Subtype期刊论文
Abstract

Concentrations of soil organic carbon (SOC), black carbon (BC), char, and soot in topsoils (0-20 cm) and vertical soil profiles (0-100 cm) from the Chinese Loess Plateau (CLP) were investigated. Objectives of the study were to establish the spatial distributions and estimate the sequestrations of these substances. The SOC, BC, char and soot concentrations were higher in the eastern and southeastern parts of the plateau and lower in the north, which is consistent with the patterns of economic development and energy consumption. The highest average SOC concentration was found in the clayey loess zone, followed by the loess and sandy loess zones. Similar trends were observed for BC, char and soot, suggesting interactions with clay and silt are potentially important influences on DC and BC. The SOC contents in topsoils varied from 0.31 to 51.81 g kg(-1), with a mean value of 6.54 g kg(-1), while BC and char concentrations were 0.02 to 5.5 g kg(-1) and 0.003 to 4.19 g kg(-1), respectively, and soot ranged from 0.01 to 132 g kg(-1). Unlike SOC, both BC and char decreased with soil depth, whereas soot showed little variation with depth. BC and char were correlated in the topsoils, and both correlated moderately well with SOC (R-2=0.60) and soot (R-2= 0.53). The SOC pools sequestered in the 0 to 20 cm and 0 to 100 cm depths were estimated to be 0.741 and 3.63 Pg, respectively, and the BC pools sequestered in the 0 to 20 cm and 0 to 100 cm depths were 0.073 and 0.456 Pg, respectively. Therefore the quantity of carbon stored in the sediments of the CLP evidently exceeds 10(9) tons. The char contained in the upper 20 cm layer was 0.053 Pg, which amounted to 72.5% of the BC in that layer.

KeywordSoil Organic Carbon Black Carbon Char Soot Chinese Loess Plateau
DOI10.1016/j.scitotenv.2012.10.113
Indexed BySCI ; EI
Language英语
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Cited Times:25[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/10045
Collection粉尘与环境研究室
Corresponding AuthorCao, JJ (Cao, Junji)[ 2,3 ]
Affiliation1.School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an 710049, China;
2.State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710075, China;
3.Institute of Global Environmental Change, Xi'an Jiaotong University, Xi'an 710049, China;
4.Graduate University of Chinese Academy of Sciences, Beijing 100049, China
Recommended Citation
GB/T 7714
Zhan, CL ,Cao, JJ ,Han, YM ,et al. Spatial distributions and sequestrations of organic carbon and black carbon in soils from the Chinese loess plateau[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2013,465(SI):255-266.
APA Zhan, CL .,Cao, JJ .,Han, YM .,Huang, SP .,Tu, XM .,...&An, ZS .(2013).Spatial distributions and sequestrations of organic carbon and black carbon in soils from the Chinese loess plateau.SCIENCE OF THE TOTAL ENVIRONMENT,465(SI),255-266.
MLA Zhan, CL ,et al."Spatial distributions and sequestrations of organic carbon and black carbon in soils from the Chinese loess plateau".SCIENCE OF THE TOTAL ENVIRONMENT 465.SI(2013):255-266.
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