title: State nature protected areas of Russia as the basis of the national system of background ecological monitoring
abstract: The areal representativeness in the state system of specially protected natural areas (SPNA) (nature reserves, national parks and wildlife sanctuaries) of the soil cover of large regions with similar natural conditions—plain and mountain soil provinces of the Soil-Ecological Zoning (SEZ) Map of the Russian Federation of scale 1:8 000 000—was assessed by the method of geoinformation analysis. The highest representation of soil cover in SPNA areas was found for the Eurasian polar soil-bioclimatic 
journal: InterCarto InterGIS