SPATIAL ASSESSMENT OF SOIL FERTILITY USING GIS AND REMOTE SENSING: A CASE STUDY OF SOUTHERN KAZAKHSTAN
Shaimerdenova A. Abdireimov S. Ashimkhan N. Zhumakan A. Auesbekov N. Kaisanova A. Vagapova A. Stepanova D. Satvaldiyev B. Ussarov U. Bektanov B. Kenzhalieva G.
February 2026Society for the Advancement of Breeding Researches in Asia and Oceania
Sabrao Journal of Breeding and Genetics
2026#58Issue 1474 - 485 pp.
This study aimed to determine the spatial variability of soil properties using arable lands at the Kokzhon deposit in the Zhambyl Region, Kazakhstan. The research used Sentinel-2 and Landsat-8 images from 2016 to 2022, covering the spring-to-autumn periods. The indices NDVI (Normalized Difference Vegetation Index), SAVI (Soil Adjusted Vegetation Index), NDMI (Normalized Difference Moisture Index), and NDRE (Normalized Difference Red Edge Index) reached their calculations using the raster calculator in the ArcGIS software environment. Spatial data processing took place in QGIS. Likewise, the conduct of channel resolution normalization and index calculation used the nearest neighbor method. The highest vegetation index (0.7–0.8) resulted in favorable years, 2018 and 2020, indicating the optimum soil fertility in specific areas. However, the minimum vegetation index (0.1– 0.3) pointed to the need for reclamation measures. The resulting maps allow for effective identification and zoning of fertile areas. The GIS technologies and satellite data application demonstrated the maximum efficiency in assessing soil fertility. The methodology considered spatial heterogeneity and monitored the dynamic variations to make decisions for the management of sustainable agriculture. The obtained results can be beneficial to develop strategies for restoring low-fertility lands and increasing crop yields.
GIS , precision agriculture , remote sensing , Soil fertility , vegetation indices
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Kazakh Automobile and Road Institute, Almaty, Kazakhstan
Al-Farabi Kazakh National University, Almaty, Kazakhstan
ALT University named after Mukhamedzhan Tynyshpaev, Almaty, Kazakhstan
Kazakh National University of Water Management and Irrigation, Taraz, Kazakhstan
Kazakh National Agrarian Research University, Almaty, Kazakhstan
Plekhanov Russian University of Economics, Moscow, Russian Federation
M. Auezov South Kazakhstan University, Shymkent, Kazakhstan
Kazakh Automobile and Road Institute
Al-Farabi Kazakh National University
ALT University named after Mukhamedzhan Tynyshpaev
Kazakh National University of Water Management and Irrigation
Kazakh National Agrarian Research University
Plekhanov Russian University of Economics
M. Auezov South Kazakhstan University
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Книга Публикация научной статьи Волощук 2026 Book Publication of a scientific article 2026