Cadastral value of land taking into account geo-environmental factors

Abstract

An urgent task is to determine the cadastral value of land, taking into account the geo-environmental factors affecting the production of environmentally friendly agricultural products and the health of citizens living in the respective territories. The contamination of the territory of the Novgorod region caused by natural and technogenic factors is considered. Natural factors include earth’s crust fractures and the associated infection of the territory with radon. Technogenic factors include the consequences of the accident at the Chernobyl nuclear power plant. Basic concepts from the field of measuring radiation contamination of a territory and human radiation doses are given. Radioecological disturbances are considered: earth’s crust fractures, territories with exceeded norms for the content of radon, cesium, potassium, thorium and uranium. Thematic mapping of radioecological violations was done in the environment of the Mapinfo program. Herewith, a schematic ecological map in raster format and a vector map of the region were used, on the basis of which thematic maps were created. On the basis of building norms and rules, as well as using the cost method of decontamination to reduce the radiation dose per 1 person-sievert, it was proved that the cadastral value of agricultural land should be reduced by fifty percent relative to its current values. The dependence of oncological morbidity in the region on the radiation infection of the territory is shown cartographically. Infection with cesium does not significantly affect the irradiation dose. It is necessary to monitor the state of radioactive potassium, and one-time measures should be taken to decontaminate the territory from thorium and uranium. The cost method justifies the cost of such measures per hectare of land.