Due to erosion and other reasons

loess slope is uneven and a variety of micro-topographies formed

which result in differences in soil physical properties in different spatial positions in Northern Shaanxi Province.This paper investigated and analyzed the soil physical properties of the micro-topographies in loess hilly-gully region.The comparison of five types of micro-topography with undisturbed slope showed that the soil physical properties of collapse

gully

ephemeral gully and platform increased to a certain degree

but decreased in scarp.This usually occurred in 0-20 cm soil layer.Soil bulk density of the 0-20 cm soil layer changed in the following order: undisturbed slopeplatformscarpephemeral gullygullycollapse.Soil water content

maximum moisture capacity

field capacity and capillary moisture capacity showed relatively similar trend

higher values being recorded in collapse

platform

gully and ephemeral gully than undisturbed slope and scarp.The change of soil total porosity

capillary porosity and non-capillary porosity coincide with soil water retention.The analysis of grey correlation between the five types of micro-topography and the soil physical properties indicated that grey correlation followed an order of collapse

gully

ephemeral gully

platform

scarp

undisturbed slope.