Dated deposition couplets link catchment erosion flux with storm discharge on the Chinese Loess Plateau

摘要：

　　Tracing erosion flux within a single catchment is one of major targets for the Earths Critical Zone science.The sedimentary succession in landslide-dammed reservoirs within the Chinese Loess Plateau(CLP)serves as a valuable archive of past erosion history.Deposition couplet and annual freeze-thaw layer were firstly identified for the sedimentary succession of Jingbian reservoir on the northern CLP by high-resolution XRF core scanning.The deposition couplets in the reservoir since 1963 A.D.was further dated by 137Cs activity and consistent one-to-one correspondence between couplet specific sediment yield and storm intensity.The reconstructed soil erosion history highlights control of storm intensity and frequency on loess erosion on the northern CLP in the past hundreds.

关键词： Landslide-dammed reservoir on the CLP Deposition couplet XRF core scanning 137Cs activity Erosion flux

作者: Zhangdong Jin Xiaqing Wang Xinbao Zhang

作者单位: SKLLQG,Institute of Earth Environment,Chinese Academy of Sciences,Xian 710061,China;Institute of Gl SKLLQG,Institute of Earth Environment,Chinese Academy of Sciences,Xian 710061,China;College of Reso Institute of Mountain Hazards and Environment,Chinese Academy of Sciences,Chengdu 610041,China

会议类型: 国际会议

会议名称: The 11th International Symposium on Geochemistry of the Earths Surface(GES-11)(第十一届地球表层地球化学国际研讨会)

会议地点: 贵阳

会议语种:英文

页码: 1-3

在线出版日期: 2017-06-11（万方平台首次上网日期，不代表论文的发表时间）