DEPENDENCIES BETWEEN CHEMICAL, PHYSICAL AND OPTICAL PROPERTIES OF MUGAN PLAIN SOILS

The article deals with the relationship between chemical, physical and optical properties of Mugan Plain soils. It was determined that the integral reflection coefficient with chemical and physical properties of the main soil types of the Mugan Plain was the least in gray-brown and grass-gray soils, 31.09-40.3%, 31.1-38,0 respectively, depending on the profile. The highest amount of 5% was in gray-meadow and swamp-meadow soils and varied between 42.90-50.55% and 39.20-42.00%. Grass-marsh lands, distributed throughout the territory in the form of tala, are distributed in limited areas of the Mugan Plain, mainly in depressions, in places where groundwater is exposed, in the area of the Kura River. Meadow-marsh soils are characterized by a high content of humus and moisture, on which predominantly water-sensitive plants grow. The amount of humus in the upper layer (0-25 cm) reaches 4.05%, which is associated with the annual rotting of a large amount of plant mass. The amount of humus decreases with depth and reaches 0.90% at a depth of 1 meter. This distribution of humus is due to the fact that the bulk of roots and rhizomes are collected in this part of the soil profile. The reason for the lack of roots in the lower layers is the unfavorable air-water regime in the silt layer due to high humidity and a large amount of iron oxide, which negatively affects plants.