Based on geo-statistical principle and semi-variability theory,this paper quantificationally studied the spatial variability of soil factor for modeling of soil erosion by water in GIS,comparing the accuracy of different interpolation methods,including IDW,Spline and Ordinary Kriging.The results showed that the spatial correlation of regional soil coefficient of soil anti-scourability was moderately,the nugget-to-sill ratio was 32.29%,while the spatial correlation of steady infiltration rate,collapse veloci...
修改评论