In order to create a solid data resource, baseline surveys were conducted in all core zones of the Wienerwald BR to establish their actual condition. This kind of ‘stock-taking’ forms the basis for current and future research projects.
The surveys were carried out by means of the random sampling method. This involved the collection of data at sampling points arranged within a grid pattern, which was then extrapolated to the total area. The following parameters were surveyed in the process: tree species present, age, height and diameter of the trees as well as the ground flora and the presence of deadwood. This regular monitoring at intervals of approx. 10 years allows us to establish and document the extent to which the core zones are changing.