GEOSTATISTICAL ANALYSIS AS A TOOL FOR EVALUATING THE SPATIAL DISTRIBUTION OF AGROCHEMICAL, PHYSICAL AND CHEMICAL PROPERTIES OF SOILS OF AGRICULTURAL PURPOSES

Abstract

The results of using the methods of geostatistical analysis to assess the nature of the spatial distribution of data on the content of humus, mobile phosphorus and potassium in the soil and the pH of the soil solution applying the tools of the “Spatial statistics” module of ArcGIS version 10.5 are presented. The presence of reliable clustering of the studied indicators was established, since the value of the Moran index ranges from 0.197827 to 0.360388; the value of the actual overall Getis-OrdG index exceeds its theoretical value, and the value of the z-score is > 2.58. Data on the content of mobile phosphorus and potassium in the soil are characterized by the maximum amount of spatial emissions with high and low values – 344 and 369, respectively. In general, the number of clusters with low values is 1.3 times higher than the number of clusters with high values.