Spatial variability of soil steady water infiltration rate in Huangfanqu of Northwest Shandong Province

Based on the infiltration tests of farmland in Yucheng experimental station,the statistical analysis of measured data indicated that there is a large variability of the steady water infiltration rate fc,and it submitted to lognormal distribution.Exponential variogram model is used for the simulation of the spatial distribution of fc.The simulation result shows that the variance from the model is very close to the statistical value from the experimental data,and the correlation scale is 23.98m;fc spatial distribution over the entire plot area is estimated by using the Kriging interpolation technique.