Eight plots with Artemisia halodendron,Populus and Pinus plantations and shift ing sandy land both four at leeward with similar slope and exposure and four on top of dune respectively,and three plots with similar Hedysarum fruticosum var.ligosum plantation at bottom,middle and top of sand dunes were chosen to monitor soil moisture to determine impacts of the plantation on both soil moisture regime and soil moisture spatial heterogeneity by using fractal dimension and semivariograms in Horqin Sandy Land.The results show that:(1)the soil moisture regime of the plots worsens in the order of Artemisia halodendron,Populus and Pinus plantation;(2)the soil moisture is significantly dependent on its position at the sand dunes;(3)horizontally,the soil moistures for Populus,Pinus plantations and shift ing sand land plots exhibits homogeneity within the scale of 4m,8m and 9m, respectively.However,that for Artemisia halodendron plantation plot show high heterogeneity within the scale of 4m,and homogeneity at the scale of 4m above.Vertically,the soil moisture for Artemisia halodendron,Pinus plantation and shifting sand land plot exhibits heterogeneity within the depth of 120cm,80cm,60cm,respectively,and homogeneity in the depth lower.However,Populus plantation plot shows great heterogeneity within the depth of 300cm.In a word,heterogeneity of soil moisture for plantation plots is higher than that for shifting sandy land plots both on horizontal and vertical scales.