Assessment of the protective potential of the Moscow region soil cover to contamination with heavy metals and metalloids

Heavy metals and other trace elements that are not subject to degradation among the priority pollutants. Significant amounts of heavy related with variable valence deposited on soil surface as part aerosols. Accumulating in soil, they very slowly removed from it, only changing level content or state during migration, turning over time into a source secondary pollution. In this regard, an extremely urgent task is assess territory, especially such highly developed densely populated area Moscow Region, terms its protective potential metal The paper proposes tested algorithm for cartographic assessment vegetation cover region using GIS analysis methods based database “Digital medium-scale map region” vector forest cover. formula used calculations includes data texture, organic matter position landscape degree territory. According proposed approach, region, cover, taking account forms 4 groups according contamination metalloids. maximum estimate was obtained noneroded sod-podzolic soils medium fine gray soils, chernozems peat bog under (17 % area). Unerroded soddy-podzolic varying degrees podzolization gleying (45 %) received average rating. Even lower 22 territory represented by eroded various sod-podzolic, alluvial soils. This group most heterogeneous minimum included gully-girder complexes, coarst well peaty (about 16 %).