Information soil database of Republic of Khakassia

Relevance. Currently, a number of soil information systems of various levels and directions have been created, the studies on the creation and application of soil databases are represented insufficiently in the Republic of Khakassia today.

Methods. Were carried out by common methods: at-ground soil and geobotanical studies, cartographic method, physical and agrophysical, agrochemical methods of soil researches. For the database creation the Microsoft Access software package was used, which systematized and unified a large amount of experimental data.

Results. Based on the long-term soil research, the database “Agricultural Soils of the foothills of the Western Sayan of Khakassia” with a wide range of soil characteristics for various purposes and uses was formed and registered. The database contains attribute information about the current state of arable and postagrogenic soils in the foothills of the Western Sayan of the Republic of Khakassia. The set of independent materials is presented in the form of tables, queries, forms, reports and catalogues of text files (.docx), photos (.jpeg), which contain information about soil forming factors, soil classification and distribution by natural and climatic zones on the research territory. Currently, the database includes a description of 17 representative soil profiles with an optimal set of indicators, a detailed description of each pedologic horizon, an accurate geographical reference and a digital photography of each reference soil profile. It contains the taxonomic attribute of the dominant and codominant soils in various classification systems (SC RF; WRB, 2006; FAO, 1988). The main information object is the type (subtype) of soil, which includes systematized factors of soil criteria (a list of 18 sets): morphological description of the soil profile, indicators of pedological property, chemical, physico-chemical, agrophysical, hydrophysical and other indicators. The contemporary database with a variety of pedologic properties will serve as a basis for the rational use and protection of soils. Geographical coordinates of soil profiles in the database will allow to display them on the maps of Russia and to put them in the Unified state register of soil resources of Russia.

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