engleski

Inventory of primary and secondary forest communications by the use of GPS in Croatian mountainous forest

The non-existence of a cadastre of primary (forest roads) and secondary (strip roads and skid trails) forest communications represents a great problem in planning forest communications in economic forests of the Republic of Croatia. It is also almost impossible to carry out intensive, rational management of forest ecosystems based on principles of continuity and bio diversity, if we do not have a good insight into an existing forest traffic infrastructure. This paper suggests contemporary methods of surveying forest roads by the use of GPS device Trimble GeoExplorer 3 and so-called return survey method with the differential correction and its mapping by a programme package ArcGis on previously established GIS of the researched area. The forest communication categorization system has also been suggested. Researches were carried out in the area of Forest administration Buzet, Forest office Opatija, Management unit Veprinačke šume, while strip roads were surveyed in 14 departments (on the area of 537.63 ha). The classical and relative openness of the researched area by forest roads and strip roads has been determined. Advantages of the existence of cadastre of forest communications and GIS of the researched area has been emphasised, both for forest opening and planning of works in forestry, as well as for multi-disciplinary, comprehensive integral forestry.

GPS; GIS; forest communications; inventory; Croatia

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