Application of GIS in studying the drainage basin of the Ipoly river
Journal Title: Scientific Annals of the Danube Delta Institute - Year 2014, Vol 20, Issue
Abstract
GIS (Geographical Information Systems) gained broad application in all the landscape ecology, earth and environmental sciences. The technical development of GIS is very fast and the user sciences are not able to follow this process sufficiently or to use all the advantages offered by GIS. The paper deals with problems of the lack of unified cartographic-topographic base, of proper choice of corresponding indices of elements of geosystems, and with their correct georeferencing on raster and vector elements. Methodical questions are discussed on the basis of a recently completed project on the GIS of Ipoly river basin. The Ipoly GIS is a unified, interconnected system of catalogues and map sheets, which strictly follows the hierarchy of the methodical levels of the geosystem structure (“component – property of component – index of property – value of index”). According to their material character, the properties (thematic map sheets) are ordered as follows: georelief (bearer of indices of space and position); components of primary landscape structures (geological basement, soils, waters, air); components of secondary landscape structures (vegetation, animals; land cover); landscape ecological complex (synthesis of the primary and secondary landscape structures); components of tertiary landscape structures (nature conservation areas, areas of protected natural resources, infrastructure zones; state of environment, indices connected to administration units - territories, inhabitants, infrastructure, environmental care in communities, districts, counties). Also, the paper presents three different interpretations (of possibilities offered by a wellestablished GIS), which derive the run-off conditions in landscape, ecological quality of landscape and level of ecological services of the landscape
Authors and Affiliations
MIKLÓS László, NÉMETH Róbert, VERRASZTÓ Zoltán
Keywords
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