Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. X
Written by Cornel Cristian TERESNEU
This paper presents a GIS analysis meant to highlight problems regarding area differences in the forest sector, when different determination methods are used. The study’s focus is on forest surfaces in the Bran-Moeciu area of Brasov county. These were identified on cadastral plans of forest boundaries and vectorised. These boundaries were then determined using the “Stop & Go” method with Trimble Pro XT and Trimble Pro XH GPS receivers. The analysis was centred on two issues: estimating the boundary differences between the two methods and their implication on area determinations. A simple method of determining boundary differences through their measurement in the AutoCAD software was used, of course taking into account their sign. In addition, a GIS method was developed which, with the aid of VBA code sequences, provides a rapid determination of these differences. The final conclusion was that, based on the analysed data, even if the differences are somewhat significant (sometimes over 75 metres) between the two methods, the implications on area determination is much lower (max. 2-3%), due to their somewhat uniform distribution of positive and negative values.
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