Analysis of Slope Sedimentary Process in Blacksoil Erosion

The blacksoil erosion is a complex geomorphological process caused by geology,topography,climate,soil,vegetation and other natural factors,and the cumulative destruction of human activity on the ecological balance has accelerated soil erosion.This paper want to explore the regularity of soil erosion in the Qianjin Watershed,Hailun County,by studying the developing history,organic carbon of stratigraphic sequence and changes in humus.Results demonstrated that: the sedimentary processes were obviously after slope wash within 85cm in section 1;slope wash appeared in 27 cm above of section 2;in section 3,the first slope wash sedimentary processes occurred in 85-120 cm place,and modern soil erosion occurred in the top soil in the soil erosion process.