Predstavljen je problem določanja prostorske enote, ki naj bi bila nosilec okoljevarstveno pomembnih opredelitev o ranljivosti okolja ob posegih vanj. Ta problem se je pokazal kot eden ključnih za izvajanje okoljevarstvenih presoj v prostorskih planih. Slovenska okoljevarstvena zakonodaja je namreč vpeljala ekosistemske enote kot nosilke vednosti o prostorskih kakovostih. Pokazana sta pomembnost oblikovanja prostorske enote na osnovi informacije o razvojnem posegu in ne na osnovi ekosistemskih ali podobnih kompleksnih prostorskih/krajinskih enot, in vezanje vrednostnih podatkov, kakršen je tudi podatek o ranljivosti prostora, na tip zapisa, ki ga označujemo kot zvezno polje. Tako podatkovna osnova kot posebna programska podpora, pripravljena v ta namen, sta izhajali iz tega temeljnega spoznanja.Spatial units carrying information on land vulnerability are methodologically an important issue. These units should, in the first place, enable the environmental assessments of an intervention. The problem was very much emphasized since the Slovenian legislation has prescribed preparation of vulnerability studies based on ecosystems division of land. The paper suggests that the information on environmental vulnerability should be represented as a "continuous field" data type. It could be derived from different information sources based on different data types. However, the data type should enable further processing based on raster data. Within the Project ONOX-GPOV the specific data base and the specific software have been developed to meet these requirements. Only some basic ideas are described in the article
