Variogram Analyses Of Soil Salinity Parameters And Kriging Sample Clauses

Variogram Analyses Of Soil Salinity Parameters And Kriging. Mapping The results of variogram analyses of soil salinity parameters are shown in figure 5. Variogram of soil EC ds m-1 Variogram of soil pH Variogram of soil EM values Figure 5. Experimental variaograms of soil salinity variables and EM values Table 1. Variogram parameters of available soil salinity variables and EM values Variables Model Range Nugget Partial sill Sill Nugget/Xxxx XX dS m-1† Spherical 2334 0.50 1.01 1.51 0.49 pH Exponential 883 0.026 0.065 0.091 0.40 EM Exponetial 650 1005 11498 12503 0.087 † log of soil EC Variogram parameters of soil salinity variables of pH and EC and EM are shown in table 1. Accordingly, soil EC and pH showed a moderatelly strong spatial distribution while EM showed a strong spatial distribution giving a very low nugget to sill ratio. Figure 6 shows the maps of soil salinity variables and EM obtained using ordinary kriging methods. The maps of soil EC and EM showed similarity giving areas affected by different levels of salinity. Soil pH map showes affected areas by salinity and also alkalinity. Figure 6. Kriging Maps of Soil salinity Variables and EM Values. Maps With Corresponding Legends hows Salt Affected Locations.