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(Article of periodic en Anglais - 2011)

Document title

Using beryllium-7 to monitor the relative proportions of interrill and rill erosion from loessal soil slopes in a single rainfall event

Authors(s) and Affiliation(s)

LIU G. (1 2) ; YANG M.Y. (2) ; WARRINGTON D.N. (2) ; LIU P.L. (2) ; TIAN J.L. (2) ;
(1) Key Lab. of Geological Hazards on Three Gorges Reservoir Area, China Three Gorges Univ., Yichang, CHINE
(2) State Key Lab. of Soil Erosion and Dryland Farming on the Loes Plateau, Inst. of Soil and Water Conservation, CAS, Univ., Yangling, CHINE

Abstract

The aim of this research was to use 7Be as a tracer to partition the sediment removed from bare, hand-cultivated, loessal soil plots by either interrill or rill erosion processes and to estimate their proportions in (1) the total soil loss, (2) the deposited material in a depositional area, (3) the suspended sediment carried beyond the depositional area and, where practical, the temporal variation in these processes. Furthermore, the measured quantities of eroded material were compared to those derived by calculations based on existing models. Two adjacent experimental plots, A and B, were constructed in the field to receive 7Be fallout in Yangling County, Shaanxi Province, in the Loess Plateau region of China

Source

Article of periodic

published at : Earth surface processes and landforms / ISSN 0197-9337 / CODEN ESPLDB

Editor : Wiley, Chichester - ROYAUME-UNI (1981)

Millesime : 2011, vol. 36, no4 [pp. 439-448]

Bibliographic references : 36 ref.

Language

Anglais

INIST-CNRS, Cote INIST : 17355

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2011
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