In this paper geostatistical theory and methods are used to study the spatial variability and the spatial distributing characters of soil moisture of different models of rehabilitated forest in dry season in Taihe county

Jiangxi province.The results showed that the soil moisture in 0~20 cm and 20~40 cm soil layers of grassland

Pinus elliottii plantation

Liquidambar formosana plantation and the forest mixed Liquidambar formosana with Pinus elliottii could be expressed by spherical model

and the soil moisture showed medium or strong spatial correlation and obvious spatial distributing patterns.The sills and ranges of semivariogram of three models of rehabilitated forest were obviously larger than that of grassland

and the differences between the two layers are also larger than that of grassland

which showed that variation extent

and the ranges of soil moisture are larger after rehabilitation

and spatial variability changed with layers.Compared with pure forests

soil moisture of the model mixed with Liquidambar formosana with Pinus elliottii had lower spatial variability

and the distribution of soil moisture tended to become homogeneous.