137Cs nuclear tracing technique was used to estimate rates of soil redistribution on a sloping field with traditional erosion
control measures located near Shangqiao Village, Neijiang City, in the Sichuan Hilly Basin of China. The downslope changes
of
137Cs inventory and its corresponding soil erosion rates in the sloping field show a rolling trend and have two peak values in
two inflexions of the sloping field, these result reflects that the changes of microphysiognomy play a key role on the spatial
soil redistribution of the sloping field.
Key words the Sichuan Hilly Basin -
137Cs - soil erosion rates - micro-physiognomy
CLC number S 157
Foundation item: Supported by the National Basic Research Program of China (973 Program, G2003CB415201) (2003CB415201), the National Natural
Science Foundation of China (40271015) and the International Atomic Energy Agency (12322/RO).
Biography: ZHENG Jinjun (1978-), male, Ph. D. candidate, research direction: soil and water conservation and 3S integration.