Cs is an important radionuclide tracer

and 137 Cs measurement has been widely used in soil erosion and relative sediment source researches because of its convenience

swiftness and accuracy. 137 Cs technique in China has experienced four stages as follow: imitation and individual exploration

group research

international cooperation and wide utilization. China has owned its standing in this field in the world. The key researches focus on the reference inventory of 137 Cs

the models of soil erosion

erosion rates and relative sediment sources. If 137 Cs can be combined with other tracers using in soil erosion

137 Cs technique will have a prosperous future.