IMHE OpenIR  > 山地表生过程与生态调控重点实验室
High-resolution geochemical records of deposition couplets in a palaeolandslide-dammed reservoir on the Chinese Loess Plateau and its implication for rainstorm erosion
Wang, Xiaqing1,2; Jin, Zhangdong2; Zhang, Xinbao3; Xiao, Jun2; Zhang, Fei2; Pan, Yanhui4
2018-03-01
Source PublicationJOURNAL OF SOILS AND SEDIMENTS
ISSN1439-0108
Volume18Issue:3Pages:1147-1158
SubtypeArticle
Contribution Rank3
AbstractThe sediment sequences retained by landslides and check dams on the Chinese Loess Plateau (CLP) are ideal for tracing historical catchment erosion, hydrological events and land use. This study explored a geochemical proxy to plot visible and non-visible deposition couplets in a sediment sequence from the CLP, in order to better trace soil erosion associated with historical rainstorms. An intact sediment sequence core (JB-2) was acquired in a palaeolandslide-dammed reservoir in Jingbian County, Shaanxi Province. The high-resolution elemental distribution of the entire core was generated by an Anaatech XRF Core Scanner. The water content and grain size were analysed in discrete samples of the representative core section. The Rb/Zr ratio was recommended as a high-resolution geochemical proxy for plotting the deposition couplets. Annual freeze-thaw layers among the couplets were then identified by the correlation between the Ca/Zr and Fe/Zr ratios. As a result, 41 deposition couplets and 18 annual freeze-thaw layers were identified in the JB-2 sediment sequence, indicating that 41 rainstorms occurred over 18 years during the survival of the reservoir. Furthermore, the ranges of couplet and annual specific sediment yields were 0.06-3.09 x 10(4) t km(-2) and 0.06-3.42 x 10(4) t km(-2) year(-1) in the JB-2 reservoir, respectively. High annual specific sediment yields were the combined consequence of high annual rainfall frequency and the sediment yields associated with the rainstorm intensities. This study highlights the use of high-resolution plots of deposition couplets for providing a basis for the reconstruction of recent and contemporary soil erosion records and for determining the implication of past rainstorm intensities and frequencies on the CLP.
KeywordChinese Loess Plateau Deposition couplet Landslide-dammed reservoir Rb/Zr ratio XRF core scanning
DOI10.1007/s11368-017-1888-9
Indexed BySCI
WOS KeywordLAND-USE CHANGES ; CHECK DAMS ; SEDIMENT CORES ; WINTER MONSOON ; SOIL-EROSION ; XRF-SCANNER ; CATCHMENT ; RIVER ; CALIBRATION ; RETENTION
Language英语
Funding ProjectOpen Fund of State Key Laboratory of Loess and Quaternary Geology[SKLLQG1622] ; Research Project of Hunan Provincial Education Department[17C1075]
WOS Research AreaEnvironmental Sciences & Ecology ; Agriculture
WOS SubjectEnvironmental Sciences ; Soil Science
WOS IDWOS:000426070100047
Funding OrganizationOpen Fund of State Key Laboratory of Loess and Quaternary Geology ; Research Project of Hunan Provincial Education Department
PublisherSPRINGER HEIDELBERG
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/22518
Collection山地表生过程与生态调控重点实验室
Corresponding AuthorWang, Xiaqing
Affiliation1.Hunan Univ Arts & Sci, Coll Resources & Environm & Tourism, Changde 415000, Peoples R China;
2.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Shaanxi, Peoples R China;
3.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Sichuan, Peoples R China;
4.Lanzhou Univ, Key Lab Western Chinas Environm Syst, Minist Educ, Lanzhou 730000, Gansu, Peoples R China
Recommended Citation
GB/T 7714
Wang, Xiaqing,Jin, Zhangdong,Zhang, Xinbao,et al. High-resolution geochemical records of deposition couplets in a palaeolandslide-dammed reservoir on the Chinese Loess Plateau and its implication for rainstorm erosion[J]. JOURNAL OF SOILS AND SEDIMENTS,2018,18(3):1147-1158.
APA Wang, Xiaqing,Jin, Zhangdong,Zhang, Xinbao,Xiao, Jun,Zhang, Fei,&Pan, Yanhui.(2018).High-resolution geochemical records of deposition couplets in a palaeolandslide-dammed reservoir on the Chinese Loess Plateau and its implication for rainstorm erosion.JOURNAL OF SOILS AND SEDIMENTS,18(3),1147-1158.
MLA Wang, Xiaqing,et al."High-resolution geochemical records of deposition couplets in a palaeolandslide-dammed reservoir on the Chinese Loess Plateau and its implication for rainstorm erosion".JOURNAL OF SOILS AND SEDIMENTS 18.3(2018):1147-1158.
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