IMHE OpenIR  > 山地表生过程与生态调控重点实验室
applicationof137csfingerprintingtechniquetointerpretingsedimentproductionrecordsfromreservoirdepositsinasmallcatchmentofthehillyloessplateauchina
ZHANG XinBao1; WEN ZhongMing2; FENG MingYi3; YANG QinKe2; ZHENG JinJun1
2007
Source Publicationscienceinchinaseriesdearthsciences
ISSN1006-9313
Volume50Issue:2Pages:254
AbstractAccording to variations of 137Cs and clay contents, 44 flood couplets were identified in a profile of reservoir deposit with a vertical length of 28.12 m in the Yuntaishan Gully. Couplet 27 at the middle of the profile had the highest average 137Cs content of 12.65 Bq+kg-1, which indicated the 1963s' deposits, then 137Cs content decreased both downward and upward in the profile. The second top and bottom couplets had average 137Cs contents of 2.15 Bq+kg-1 and 0.92 Bq+kg-1, respectively. By integrated analysis of reservoir construction and management history, variations of 137Cs contents over the profile, sediment yields of flood couplets and rainfall data during the period of 1958-1970, individual storms related to the flood couplets were identified. 44 floods with a total sediment yield of 2.36×104 m3 occurred and flood events in a year varied between 1 and 10 times during the period of 1960-1970. 7-10 flood events occurred during the wet period of 1961-1964 with very wet autumn, while only 1-2 events during the dry period of 1965-1969. Average annual specific sediment yield was 1.29×104 t+km-2+a-1 for the Yuntaishan Gully during the period of 1960-1970, which was slightly higher than 1.11 ×104 t+km-2+a-1 for the Upper Yanhe River Basin above the Ganguyi Hydrological Station and slightly lower than 1.40 ×104 t+km-2+a-1 for the nearby Zhifang Gully during the same period. Annual specific sediment yields for the Yuntaishan Gully were correlated to the wet season's rainfalls well.
Language英语
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/31934
Collection山地表生过程与生态调控重点实验室
Affiliation1.中国科学院成都山地灾害与环境研究所
2.中国科学院水土保持研究所
3.西华师范大学
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
ZHANG XinBao,WEN ZhongMing,FENG MingYi,et al. applicationof137csfingerprintingtechniquetointerpretingsedimentproductionrecordsfromreservoirdepositsinasmallcatchmentofthehillyloessplateauchina[J]. scienceinchinaseriesdearthsciences,2007,50(2):254.
APA ZHANG XinBao,WEN ZhongMing,FENG MingYi,YANG QinKe,&ZHENG JinJun.(2007).applicationof137csfingerprintingtechniquetointerpretingsedimentproductionrecordsfromreservoirdepositsinasmallcatchmentofthehillyloessplateauchina.scienceinchinaseriesdearthsciences,50(2),254.
MLA ZHANG XinBao,et al."applicationof137csfingerprintingtechniquetointerpretingsedimentproductionrecordsfromreservoirdepositsinasmallcatchmentofthehillyloessplateauchina".scienceinchinaseriesdearthsciences 50.2(2007):254.
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