Once spatial dependence had been determined, each property in the non-sampled areas was predicted by kriging, represented on contour maps that were drawn up using Surfer software 1999.
Una vez determinada la dependencia espacial, se efectuó la predicción de cada propiedad en zonas no muestreadas mediante kriging, representados en mapas de contorno que se elaboraron utilizando el programa Surfer 1999.