YANG Ping, HU Xuli, JIANG Xiaosan, et al. Spatial Variability of Soil Erodibility K Value and Influence of Sampling Densities on K Value Accuracy at a Scale of Small Watershed[J]. Bulletin of Soiland Water Conservation, 2006, 25(6): 35-39.
YANG Ping, HU Xuli, JIANG Xiaosan, et al. Spatial Variability of Soil Erodibility K Value and Influence of Sampling Densities on K Value Accuracy at a Scale of Small Watershed[J]. Bulletin of Soiland Water Conservation, 2006, 25(6): 35-39.DOI:
soil erodibility K values were calculated using EPIC model at large sampling densities
and the dist ribution map of K values was made using inverse distance weighting spatial interpolation. Classical statistical analyses show significant spatial variability of soil erodibility K values at a scale of small watershed
the variance coefficient of which is 39.94%. Therefore
the spatial variability should be taken into account in soil erosion monitoring at a scale of small watershed. The relative error of K values is less than 25% when half of the total samples