Theoretical and methodological fundamentals of use GIS technologies and creation of electronic maps when conducting land management

The purpose of this article is to study the use of GIS during land management in the Odessa region. Main material. The presented article briefly highlights the main problems of using modern information technologies, which are now crucial for economic development, effective management and improving the quality of life. One of the main features of GIS support and automation of land management is the wide range of field geodetic data processing. These include the ability to enter measurement data from paper media, as well as import from electronic storage devices or direct input of coordinates in real time. As part of the development of geoinformation mapping, it is advisable to allocate a separate area at the intersection of such sciences as geoinformatics, land management and land cadastre, as well as cartography - geoinformation mapping, the essence of which is the automated creation and use of maps as an integral part of land cadastre based on geoinformation technologies and land information geodatabases to solve large-scale problems. Modern electronic map as a means or tool of knowledge of the landscape of the Earth leads to the creation of secondary, i. e. model, geoinformation. Model cartographic information is determined by analysis and synthesis, as well as by processing primary geoinformation by various mathematical methods. It is used to study natural and anthropogenic phenomena on maps and to create new, derived maps and cartograms for various purposes. In connection with the increase in demand for such maps in the national economy of Ukraine and in other countries, an objective assessment of the amount of information encoded on these maps becomes especially important. Conclusions. The use of GIS technologies in solving various land management problems allows to make radical changes in the field of management decisions of various kinds and nature regarding the use of natural resources, environmental protection and environmental safety at different levels. As a result, the substantiation, structure, methodology and results of the creation of a geoinformation database to ensure the problems of land management in the Odessa region are presented.