ASSESSMENT OF THE CURRENT STATE OF PASTURE LANDS BASED ON SATELLITE DATA ANALYSIS

Abstract

This paper discusses the principles of obtaining data on the development and degradation of hayfields and pastures based on spatial and temporal analysis of satellite data of various resolutions (TerraModis, Landsat 8, Sentinel 2) that are fundamentally new for the Republic of Kazakhstan. The main difference is the simultaneous use of different satellite data and different vegetation indices obtained from them. This spatial temporal analysis allows you to minimize systematic errors in obtaining information about the development of natural ecosystems and make a more accurate analysis and forecast of further development. It was found that this area is highly susceptible to the process of desertification, since the biomass indices in all periods show values of either the complete absence of land vegetation, or its minimal accumulation. The results of comparing the degree of damage to pastures obtained by remote methods and on the basis of ground surveys revealed that the reliability of correct determination of the weak degree of damage corresponds to 75%, the average degree of damage - 85% and the strong degree of damage - 90%.