БАЗЫ ДАННЫХ ДЛЯ АГРОЭКОЛОГИЧЕСКОЙ ОЦЕНКИ СЕЛЬСКОХОЗЯЙСТВЕННЫХ ЗЕМЕЛЬ

Databases have been created to form models of knowledge representation and geoinformation modeling of regional standards  for the assessment and grouping of agricultural lands. The process of creating databases included the main stages: designing a conceptual domain model, logical and physical design. At the initial stage of the  design, when developing the conceptual model, a choice was made  of the type of data organization. High-level entities in the databases  are defined by Climate, Relief, Soil and Culture. The basis is an  object-oriented relational model with the possibility of its further use for geomodels constructing. The application of object-oriented  technology gives system properties of the geoinformation model and  allows creating a natural hierarchy of territorial objects, as well  as the processes of interaction between them, ensuring the  functioning of the system as a whole. A complex system of  describing natural conditions and factors associated with agricultural  lands in the form of interconnected tables is created in which the  information object is represented as a named set of units or entities  with a given structure. The analysis of functioning and support of  statistical data processing, necessary connections with the server  and database tables is performed. At the stage of physical  implementation, a program was developed for accessing and working with databases. It is possible to upgrade and adapt the databases for making changes, optimizing the functioning and modifying the  program. Information from external data sources is updated in the  form of Excel files or other database formats that are compatible  with MS SQL Server 2012 database management system.