Pyotr Mikhailovich Sapozhnikov

Indicators of cadastral value of soils in agroclimatic subzones of agrolandscapes of the Irkutsk region are determined. The sensitivity of cadastral value calculation approaches to various soil and geographical conditions is shown. Low values of the cadastral value of agricultural land are due to low values of agroclimatic potential.

The normative yield and cadastral value of agricultural lands of Altai Krai have been estimated. 123 soils from sodpodzolic to mountain soils in different agroclimatic conditions and landscape elements were characterized. The cadastral value varies in the range of values from 17.2 rub.∙м-2 for leached chernozems to 0.02 rub.∙м-2 for automorphous typical solonchaks. The increase in cadastral value is associated with the growth of agroclimatic potential. The highest values of cadastral value and normative yield correspond to the zone of podzolized and leached chernozems,
dark gray and gray forest soils of Salair foothills, the lowest values of cadastral value and normative yield are characteristic of the zone of chestnut soils of dry steppes. According to median values of specific indicators of cadastral value in a number of chernozems the following dependence can be distinguished: typical chernozems> leached chernozems> podzolized chernozems> ordinary chernozems> southern chernozems. The sensitivity of cadastral value to degradation processes is shown: soil washout reduces specifi c indicators of cadastral value from 5% to 88%, deflation — by 5–92%, salinization — from 13 to 36%, gleying — up to 66%.