This study mainly discuss the spatial interpolation uncertainty of soil steady water infiltration rates in Ji river basin which located in the third vice-area of loess hilly and gully region.Based on the 65 actual measurement points data,the spatial interpolation methods of inverse distance weighted,ordinary kriging and spline are utilized to analyze the impact of sample numbers,cell size of interpolation grid and different interpolation methods on the results of spatial interpolation of steady water infilt...
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