Use of caesium‐137 measurements to investigate erosion and sediment sources within a small drainage basin in the loess plateau of China

Hydrological Processes - Tập 3 Số 4 - Trang 317-323 - 1989
Xinbao Zhang1,2, Li Shaolong1, Chenghua Wang1, Tan Wanpei1, Zhao Qingchang3, Yiyun Zhang3, Van Meiqiong3, Ya-Lun Liu3, Jiang Jingjiang3, Jule Xiao4, Jie Zhou4
1Chengdu Institute of Mountain Disaster and Environment, Academia Sinica, China
2Visiting Associate Professor, Xian Laboratory of Loess and Quaternary Geology.
3Physics Department, Sichuan University, China
4Xian Laboratory of Loess and Quaternary Geology, Academia Sinica, China

Tóm tắt

AbstractThe contributions of sediment from different geomorpholigical units within a small basin in the Loess Plateau have been determined using caesium‐137 as a tracer. The mean caesium‐137 content of sediment originating from the hill area, where sheet and rill erosion are predominant, was 3–37 Bq kg‐1, whereas no caesium‐137 was detected in the sediment originating from the gully area where gullying and gravitational erosion are predominant. The mean caesium‐137 content of sediment from two flood deposits was 0–23 Bq kg‐1 and 0–89 Bq kg‐1. The relative contribution from the hill area in the two floods was 7 per cent and 26 per cent, whilst that from the gully area was 93 per cent and 74 per cent.

Từ khóa


Tài liệu tham khảo

McHenry J. R.andRitchie J. C.1977. ‘Estimating field erosion losses from fallout caesium‐137 measurements’ in Erosion and Solid Matter Transport in Inland Waters. IAHS Pub 122 26–33.

10.1016/0883-2889(87)90098-0

Peart M. R.andWalling D. E.1986. ‘Fingerprinting sediment sources: The example of a drainage basin in Devon UK’ Hadley R. F. (Ed.) Drainage Basin Sediment Delivery IAHS Pub. 159 41–55.

10.2136/sssaj1974.03615995003800010042x

10.1097/00004032-197005000-00002

Walling D. E.andBradley S. B.1988. ‘The use of caesium‐137 measurements to investigate sediment delivery from cultivated areas in Devon UK’ Bordas M. P. and Walling D. E. (Eds) Sediment Budgets. IAHS Pub. 174 325–335.

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Thông tin xuất bản

Hydrological Processes

Tập 3 Số 4

317-323

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