ASSESSMENT OF THE FERTILITY OF IRRIGATED MEADOW-SEROZEM SOILS BASED ON GIS TECHNOLOGY

Abstract

This article presents the results of assessing the fertility of newly irrigated meadow-sierozem soils widely distributed in the “Kazakhstan” massif of Arnasay District, Jizzakh Region, using GIS technologies. Field and laboratory data characterizing the granulometric composition of the soils and their nutrient supply status were processed within a GIS environment. Based on the obtained data, the spatial distribution of soil properties was analyzed and classified according to corresponding value ranges. The distribution areas, boundaries, and extents of the identified soil characteristics were determined, and thematic maps were developed. The use of GIS-based spatial analysis and digital mapping capabilities made it possible to identify the spatial variability of soil granulometric composition and nutrient supply levels. Based on the results, the spatial condition of the fertility of irrigated meadow-sierozem soils was assessed, and scientific and practical conclusions were developed for their effective management and the rational use of land resources.