Ecological Systems and Devices Annotation << Back SCIENTIFICALLY-METHODICAL ASPECTS OF ENVIRONMENTAL RISK ASSESSMENT N.I. Grekhnev, L.N. Lipina The article examines the main factors affecting the ecological sustainability of ecosystems, which under the infl uence of chemical and biological effects may be different modefi tsirovatsya. Among those considered bioclimatic, physical, geomorphological and many others. The importance given to geochemical landscapes which have a defi nite effect on the nature of the weathering of rocks and ore mass in the supergene zone on the lithological composition of modern eluvium intensity of geochemical processes and the formation of the soil profi le. Lithogenicity substrate carries ecogeochemical information about certain complexes and associations of chemical elements that are genetically determine the composition of elements typomorphic pollutants. Completion of the landscape and geological-structural analysis showed a variety of geological, environmental, ecological and geochemical and geomorphological environments in mountainous areas, which allows to allocate enough contrasting types of ecosystems. The reactions of the oxidation of sulfi de deposits in landfi lls, which lead to the high solubility of the mineral forming groups. Keywords: environmental risk; environmental sustainability; geochemical landscape; ecosystem types. Contacts: E-mail: grh@igd.khv.ru, E-mail: GEO-LIPINA@rambler.ru Pp. 42-51.