Methods comparison Habitalp CC, biotope mapping, open land mapping using the example of the southern flank of the Tamischbach tower (6.8 km)

Since the establishment of the National Park in 2003, the Natural Space Department has strived to obtain a first realistic and 2nd comprehensive picture of the given vegetation conditions by means of various mapping techniques. Forest surveys (CARLI 2007 and 2008) as well as the simultaneous forest inventory (CARLI & KREINER 2009) were the most important foundations for the forest. The data and insights gained made it possible to use the comprehensive aerial image evaluation according to Habitalp interpretation key (Hoffert & ANFANG 2006) into a GIS modelling of the current forest vegetation (ZIMMERMANN 2009a, ZIMMERMANN & KREINER 2012; Map: Zimmermann 2009b). For the forest-free open land, the first area-sharp data from the biotope mapping initially limited to the valleys and side trenches (KAMMERER 2006 et seq.) and the Alm management plans (EGGER & KREINER 2009) were available. The large-area remaining open land, in particular of the higher elevations, was in the form of a survey and analysis by GREIMLER 1997, BOHNER ET AL. 2009, MILLER-Aichholz 2007 and WERSCHONIG 2007 based terrestrial association estimate for forest-free Habitalp polygons recorded (ZIMMERMANN 2011, Höbinger ET AL. 2011; Map: HÖBINGER 2011). The task of the present paper is to compare the three methods of biotope mapping, open land mapping and Habitalp aerial image interpretation. This is done using a subarea (south flanks of the Tamischbach Tower) for which data from all three mappings are available. The AG hopes to find out about the accuracy of the different procedures and their specific strengths and weaknesses in the sense of future application areas.