Development of knowledge base structure of geoinformation monitoring system for evaluation of qaulity status of agricultural lands
DOI:
https://doi.org/10.15587/1729-4061.2015.51050Keywords:
geoinformation monitoring, knowledge base, geospatial data base, GIS mappingAbstract
Solution to the problem of information decision support for monitoring the quality status of agricultural lands was highlighted and the necessity of creating an information structure that will facilitate operational monitoring of lands, creation of integrated digital thematic maps and GIS models to reflect the current status of lands was substantiated. A set of thematic variables of geoinformation monitoring system objects for evaluating and mapping the quality status of agricultural lands, providing calculation of key indicators of the quality status of lands such as ploughing-up, forest cover, field-protective forest cover, agricultural development, factors of anthropogenic load and environmental stability was defined.
The process of developing the knowledge base structure of the geoinformation monitoring system that includes the following components: thematic variables of geoinformation monitoring system objects, sets of methods for research, data processing, cartographic representation and spatial analysis was shown. A set and composition of knowledge base libraries and geoinformation monitoring system rules - set of thematic variables, set of scales of indices, library of formulas that unify information, methods of processing and presentation of results was determined.
A set and composition of metadata, rules of spatial analysis and cartographic representation of geoinformation monitoring system objects for evaluating the quality status of agricultural lands was established. The methods and types of cartographic representation were selected, the rulesets for geoinformation analysis (classification, overlay analysis, cartometric operations), symbols and composition of the legend for each index were chosen.
The developed knowledge base structure can be a basis for creating a set of thematic maps for evaluating, updating and forecasting the status of geosystems and their components.
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Copyright (c) 2015 Світлана Станіславівна Кохан, Антоніна Анатоліївна Москаленко
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