Aim. Analysis of the status of the areas with the use of geoinformation technologies for environmental assessment to ensure sustainable development of natural-anthropogenic systems. Methods. Researches in field conditions and methods of chemical analyses of samples are conducted. Laboratory and analytical researches are executed with use of the standard techniques on the nuclear and absorbing spectrophotometer. The obtained data were analyzed by mathematical and statistical methods. Ecological maps are constructed with application of GIS-technologies. Results. Laid the basis for integrated environmental assessments of urban areas using geographic information systems. Conducted research to identify pollution of soil, air, and vegetation. Created digital environmental databases. Main conclusions. The developed techniques and algorithms of creation of a database and thematic digital vector maps and use of geoinformation technologies in ecological researches can be recommended as basic at similar researches both in territories of the cities of the Republic of Dagestan, and after the corresponding adjustment and completion when studying natural landscapes