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Sediment source identification by using Cs-137 and Pb-210 radionuclides in a small catchment of the Hilly Sichuan Basin, China
Zhang, XB; He, XB; Wen, AB; Walling, DE; Feng, MY; Zou, X
Corresponding AuthorZhang, XB
2004-09-01
Source PublicationCHINESE SCIENCE BULLETIN
ISSN1001-6538
Volume49Issue:18Pages:1953-1957
SubtypeArticle
AbstractDouble radionuclide tracers of Cs-137 and Pb-210 were used to investigate sediment sources in the Wujia Gully, a small catchment in the Hilly Sichuam Basin in 2002. Average Cs-137 and Pb-210 concentrations in the source soils of the steep forest slopes, gentle cultivated terraces and bare slopes were 7.15+/-0.40 and 162.01+/-3.86 Bq . kg(-1), 4.01+/-0.31 and 70.96+/-2.65 Bq .kg(-1), and 0 and 15.12+/-1.22 Bq .kg(-1), respectively, while those concentrations in the recently deposited sediments in the reservoir were 3.06+/-0.23 and 72.66+/-1.61 Bq .kg(-1), respectively. By using the mixing model, the relative sediment contributions from steep forest slopes, gentle cultivated terraces and bare slopes (including channel banks) were estimated to be 18%, 46% and 36%, respectively. Cultivated terraces and bare slopes (including channel banks) were the first and the second important sediment sources in catchment. Specific sediment yield in the catchment was 642 t . km(-2) . a(-1) from the deposited sediment volume in the reservoir since 1956. Soil erosion rates for the forest slopes and cultivated terraces, which accounted for 2/3 and 1/3 of the drainage area in the catchment, were estimated to be 173 and 886 t . km(-2) . a(-1), respectively.
KeywordSediment Source Relative Contribution (Cs)-c-137 Pb-210 Hilly Sichuan Basin
WOS HeadingsScience & Technology
DOI10.1360/04wd0106
WOS Subject ExtendedScience & Technology - Other Topics
Indexed BySCI
WOS KeywordCULTIVATED LAND ; SOIL-EROSION
Language英语
WOS SubjectMultidisciplinary Sciences
WOS IDWOS:000225416200012
Citation statistics
Cited Times:22[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/10602
Collection成都山地所知识仓储(2009年以前)
山地表生过程与生态调控重点实验室
科技与合作处
Affiliation1.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China
2.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710075, Peoples R China
3.Univ Exeter, Dept Geog & Archaeol, Exeter EX4 4RJ, Devon, England
4.China W Normal Univ, Nanchong 637002, Peoples R China
Recommended Citation
GB/T 7714
Zhang, XB,He, XB,Wen, AB,et al. Sediment source identification by using Cs-137 and Pb-210 radionuclides in a small catchment of the Hilly Sichuan Basin, China[J]. CHINESE SCIENCE BULLETIN,2004,49(18):1953-1957.
APA Zhang, XB,He, XB,Wen, AB,Walling, DE,Feng, MY,&Zou, X.(2004).Sediment source identification by using Cs-137 and Pb-210 radionuclides in a small catchment of the Hilly Sichuan Basin, China.CHINESE SCIENCE BULLETIN,49(18),1953-1957.
MLA Zhang, XB,et al."Sediment source identification by using Cs-137 and Pb-210 radionuclides in a small catchment of the Hilly Sichuan Basin, China".CHINESE SCIENCE BULLETIN 49.18(2004):1953-1957.
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