Abstract:Using the geo-statistical method, we investigated spatial variability and autocorrelation of 5 soil physical properties (including soil bulk density, total porosity, capillary water holding capacity, capillary porosity, aeration porosity), 17 nutrient elements (including pH, available N,S, Si, P, K, Cu, Zn, Fe, Mn, total K, P, N, organic matter, exchangeable Ca, Mg and CEC) in Wenxing village, Anshun city in Guizhou province. First, our results showed that the Cv of soil pH and capillary porosity were lower than 10%, indicating their weak variation. In contrast, others had a variation coefficient between 10% -100% for moderate variation. Next, our semi-variogram analysis showed that the ratios of nugget to sill for soil capillary water holding capacity, aeration were lower than 25%, demonstrating their strong spatial auocorrelations. Contrarily, soil bulk that the capillary porosity, available P, S, Mn have a weak spatial correlation, the others displayed positive significant spatial autocorrelation. Finally, from the kriging interpolation maps at the study area, soil total porosity, capillary porosity, available S, Si, Cu, Mn, total N, P, K, exchangeable Ca, Mg and CEC porosity, capillary porosity, capillary water holding capacity, and pH, available S, Si, Zn, Cu, total P, N, organic matter, exchangeable Ca, Mg and CEC were lower in northeast and northwest area, whereas the soil bulk density, aeration porosity were lower in southwest area, and pH, available K, Cu, total P, K, organic matter, CEC were higher in the southwest direction. Furthermore, the contents of available nutrients (N, K, S, Cu), total P and organic matter and CEC displayed a decreasing trend from southwest to northeast area.