Evaluation of soil salinity level through NDVI in Syrdarya province, Uzbekistan

¹ Tashkent Institute of Irrigation and Agricultural Mechanization Engineers, Kari Niyazi str., 39, 100000, Tashkent, Uzbekistan
² Tashkent Institute of Architecture and Construction, Navoi str., 13, Tashkent, Uzbekistan
³ Karakalpak State University named after Berdaq, CH. Abirov str., 1, Nukus, Karakalpakstan, Uzbekistan
⁴ Tashkent State Agrarian University, University str., 2, 100140 Tashkent province, Uzbekistan
⁵ Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, South Beijing Road, 818, Urumqi, Xinjiang, China

^* Corresponding author: a.juraev@tiiame.uz

Abstract

Traditional soil salinity assessments have been doing by collecting of soil samples and laboratory analyzing of collected samples for determining TDS and electro conductivity, but, GIS and Remote Sensing technologies provides more efficient, economic and rapid tools and techniques for soil salinity assessment and soil salinity mapping. Main goals of this research are to map soil salinity of Syrdarya province, to show relation of its result with soil quality index (arable land validity point) values of this field. The soil quality index data and map of 2019 year were digitized and transferred to ArcMap software format and investigated the soil quality index score. As a source of satellite images has been used Landsat OLI 8 Earth-observation satellite. Syrdarya province, every arable land validity point of different locations were measured by State Commite of the Republic of Uzbekistan of Land Resources, Geodesy, Cartography and State Cadastre was compared to our research conducted on satellite sensor and it can be said that the study have done correctly.