A Comparative Analysis of Various Spatial Interpolation Methods for Soil Chrome Content on a Small Scale

Five spatial interpolation methods,i.e.Ordinary Kriging,simple Kriging,universal Kriging,disjunctive Kriging and inverse distance weighting,were compared on a small scale,in Wutan Town of Jiangjin city.These techniques were applied to investigate the spatial patterns of soil Cr.The results showed that the second-order trend ordinary Kriging method could accurately reflect the spatial patterns of Cr based on predict error,statistical feature values and spatial distribution maps of interpolation.