LANDSCAPE FEATURES AND RESOURCE POTENTIAL OF LAKE TEREBOVYCHI SAPROPEL

The problem of assessing the natural-resource potential of landscapes and natural-aquatic complexes (NAC) of lakes, in particular, is updated. Lakes represent water, biotic, organo-mineral, and recreational resources. Tourist facilities, sanatoriums, recreational shelters, fish farms, sapropel mining enterprises, natural parks, and nature reserves operate on the base of the lakes. Given the above, there is a need to study the landscape-resource potential of lakes, primarily sapropel resources, which will become an information base for investors and integrated management of water resources. The purpose of the research is to substantiate the landscape and geographical features of Terebovichi lake and the resource potential of sapropel for the needs of balanced nature management. In the research process, methods of bathymetric profiling of lakes, general limnological methods, soil-geochemical profiling, landscape-limnological methods, GIS-cartographic modeling of lakes and lake-basin systems have been used. Research results. A digital bathymetric map of the lake has been created Terebovichi, with a depth interval of 0.25 m and a local deepening with the greatest depth of 2.4 m, has been found, and the reservoir's main morphometric and hydrological parameters have been calculated. A stratigraphic section of lake sediments has been made with the dissection of three types of sapropel (organo-clay, organo-iron, limonite), and a cartographic model of the landscape structure of the NAC lake has been constructed, and its landscape metric analysis has been carried out. Conclusions. It was established that the basin of Terebovichi lake is 79.34% filled with sapropel deposits. The area covered by sapropel is 50.0 ha, partially extending beyond the reservoir. The average thickness of sapropel is 5.46 m, and the maximum is 11.3 m; the total volume of sapropel is 2239 thousand m3. Balance geological reserves of sapropel – 498 thousand tons, off-balance reserves – 61 thousand tons. The lake is promising for the development and extraction of sapropel.