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Savin, I. Yu
Moscow University soil science bulletin, 2022/6, Letnik: 77, Številka: 2Journal Article
The current status of the issues of soil mapping is considered. It is shown that traditional soil mapping methods have been replaced by methods based on geoinformation, digital, and remote sensing technologies. The main advantages and disadvantages of the currently used soil mapping methods are outlined, and the necessity of taking the level of generalization of the information used for soil mapping into account is shown. We demonstrate the errors in soil maps, when digital spatial data with different levels of information generalization are used. The most promising directions in the development of soil mapping methods are identified. It is shown that the primary attention should be paid to the development of digital soil mapping methods based on remote sensing data, which contain the most accurate information on the spatial variation in properties of the surface soil horizon. The methods of spatial interpolation of point data are less accurate than the remotely sensed data. However the latter enable us to confidently detect only particular soil properties and not all of those necessary to compile traditional soil maps. Mapping of individual soil properties is a more promising approach. Maps of individual soil properties are more convenient and accurate for evaluating soil and land resources. They can be used in the future as a basis both for the recreation of soil units in terms of accepted soil classification and for the compilation of traditional soil maps (reflecting classification units of soils). However, for a complete transition to the mapping of soil properties, more comprehensive studies are required to study the spectral reflectance of the soil surface and its relationship with the properties of the underlying soil horizons.
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in: SICRIS
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