Measured the cover soil water content in soil layer 0-30 cm of different agroforestry landscape types in Ji-yuan with TDR

the landscape types including sloping cropland

apple orchard

apple-clover system

land under forest and grass changed from grain crop and black locust forest.Analyze the distribution characteristic and spatiotemporal variability of the cover soil water.The result showed that the soil water has renewed in a certain extent after a rain period in 1.5 m soil profile;the soil water content is gradually increased from the top of to the bottom of the slope under the affection of the slope location and plant category.The theory model of semivariogram for cover soil water content before rain season and after season

the value of nugget is changed no obviously

and they are 0.25 and 0.30;ranges is 99.7 m and 87.6 m.And the results indicated that soil moisture exhibited high fractal dimensions and clear spatial autocorrelation.The fractal dimensions are 1.71 and 1.74

variogram is main autocorrelation.During rain season the theory semivariogram model is linear

the spatiotemporal variability of soil water content becomes higher with the increase in distance

and its fractal dimension is 1.40.