DEPENDENCE OF PHOSPHATE CONTENT IN WATER ON MOBILE AND TOTAL FORMS OF PHOSPHORUS IN SOIL IN AGRICULTURAL TERRITORY OF TERNOPIL REGION (UKRAINE)

The indicators of phosphates in water, the content of mobile and total forms of phosphorus in bottom sediments and soils in the hydroecosystem of the agrarian territory, which is characterized by active agriculture and animal husbandry, have been determined and analyzed. It was found that the presence of the total form of phosphorus in soil, water and bottom sediments differs significantly in different months, and the mobile form, on the contrary, is the same. It indicates a significant mobility of mobile forms of phosphorus in the “soil-water-bottom” sediments system. It was found that in spring most of the total phosphorus is in the soil, and in summer and until the beginning of autumn, its share in bottom sediments increases. It was revealed that the content of phosphates in the studied hydroecosystem is determined by their migration in the “soil-water-bottom” sediments system and has a seasonal character.