the characteristics of soil antisourability and disintegration rate under different landuse types were studied in Ansai County located in the loess hill and gully area. Results showed thatthe antisourability and disintegration rate increased with soil depth increasing

indicating a decrease in soil anti2erodibility. Landuse types

in terms of soil antisourability and disintegration rate within 10 cm of surface soils

ranked in the descendantorder of shrubbery

grassland

high-forest

orchard

and farmland

butthe order changed some-what in 20 -30 cm and 40 -50 cm soil layers. Under differentlanduses

the relationship between the antisourability and the disintegration rate was obviously a kind of progressively increased linearity. Soil disinte-gration rate for shrubbery changed fast as soil antisourability changed and slope of the linear equation was 0. 352 4. The linear equation slope for farmland was the smallest and is only 0. 014 5. The linear equation slopes for grassland

high-forest

and orchard were between 0. 352 4 and 0. 014 5. The difference of the line2 ar equation slopes for grassland and high-forest was little and their variation features in the same soil depth were almost identical.