THE LANDSCAPE-ECOLOGICAL PRINCIPLES OF THE NATURE MANAGEMENT AND ECOSYSTEM CONSERVATION IN THE REGIONS OF CENTRAL-ASIA AND SOUTH SIBERIA WITH EXTREME CONDITIONS (THE EXAMPLE OF MONGOLIA)

Landscapes and ecosystems of the Earth differ not only in structural a nd functional features, but they response to anthropogenic impact in d ifferent ways too. Such a difference can achieve threshold values unde r the severe ecological conditions of the Central Asia and Southern Si beria thus defining their position in natural hierarchical natural-ter ritorial complexes. Drastic changes in characteristics of structure an d functioning lead to appearance of qualitatively new natural-anthropo logical systems, which are not characteristic to this geosystem zone. Anthropogenically stimulated natural processes produce ultimately ''mu tated'' ecosystems. Such processes require specific attitude to ecosys tems existing under severe ecological conditions at all the stages of interaction: studies, use and protection. This, in its turn demands de velopment of ecologically sound interaction principles unified by spec ially designed concept of nature management and conservation of ecosys tems in landscapes with severe ecological conditions.