Nature Rezerves as Core Areas of eco-net in the context of sustainable Development of Regions

National networks of the reserves institutions are developing now in most of European countries. This is the “gold fund” which facilitates restoration of the ecological balance, refinement of air and water, increasing of number of animals and plants. National nature parks, nature and biosphere reserves are the main nature protection, cultural, educational, scientific research institutions, which make bright preciousness of natural acquirement, natural, historical and cultural inheritance of people. One of modern direction in creation of nature reserve objects is their multifunctionality, particularly of national parks, that allowed to combine nature conservation and prerequisites of sustainable use: bioresources, tourism, recreation/resort, aesthetic and eco-education. Establishment of new protected areas in Europe has been developed in line with recommendations of the Pan-European Biological and Landscape Diversity Strategy (PEBLDS) in respect of the issue of the development of Pan-European Eco-Net (PEEN) as a single spatial system of areas of European countries with the natural or partly altered condition of a landscape