At the south edge of the Tengger Desert

chose the moving dune

enclosure for 5 years

enclosure for 15 years and enclosure for 25 years of the restoration successive series

It represents the different stages of reversion process of desertification.The soil chemical properties of the decertified land were studied in reversion process of desertification with the method of substituting time with space.The results showed that the soil pH

soil electrical conductivity

soil available potassiumat

soil available phosphorus

soil total nitrogen and soil organic matter showed varying degrees of fluctuation changes at depth of 0-300 cm

but the mean valuehave increased continuously.Surface-soil pH gradually decreased in reversion process of desertification

but surface-soil electrical conductivity and soil fertility on behalf of soil available potassiumat

soil available phosphorus

soil total nitrogen and soil organic matter gradually increased in reversion process of desertification

and the overall difference of the surface soil chemical properties in various stages was significant.It is concluded that the soil chemical properties gradually develop in the benign direction in reversion process of desertification at the south edge of the Tengger Desert.