Analysis of the state of waterflows of the Syan river sub-basin as an object of the water cadastre

Among the existing state cadastres, an important place belongs to water, which is basis of management water fund. According Water Code Ukraine, fund includes all bodies, provides for systematic determination reserves and quality resources in a particular area.Water affected by large number factors, including location, body category, intake area, mirror volume, river network type, terrain parameters properties, hydrological conditions. No less influence anthropogenic correlated with degree development territory, land structure, population settlements, man-made load so on. The purpose work analyze watercourses Syan sub-basin establish main factors that affect quality. has great impact on public health, careful analysis natural sources one components cadastre resources. Method. During research we worked information provided Lviv Hydrometeorological Service, egional Department Management, laboratories engaged monitoring region last ten years, data from environmental passport 2020. processing results used combination methods system structural analysis, analytical comparison, mathematical formalization, cartographic materials, ability solve problems achieve goal reliability conclusions [Sovhira S. V. et al., 2016]. Results. It established flowing through territory does not carry depends mainly namely: territorial climatic conditions, relief, hydrogeological geomorphological etc. Due climate change, various phenomena flooding are increasingly occurring, negatively Floods occur reasons and, recent characteristic sub-basin, especially mountainous areas. For characterized high economic development, rivers depends: mining activities; soil pollution; creation operation artificial reservoirs; activity within floodplainchannel complexes; dredging channel-directing works; deforestation intensive at watersheds, clearly confirmed Shklo its tributaries Gnoyanets, Tereshka, Data were collected, systematized analyzed using adhering provisions integrated approach according basin principle. Scientific novelty practical significance. proposed use create plans based principle example sub-basin. This will allow identify influence, their nature, relationship interaction fill official, relevant geoportal “State Cadastre” website State Agency.