Evaluarea biodiversității în arborete de amestec din nordul Carpaților Orientali: un studiu de caz bazat pe indicele biodiversității potențiale

In this article we present an application of the IBP index (Potential Biodiversity\udIndex), used for assessing potential biodiversity in forest stands. The\udproposed index is based on the score of ten factors: seven are related to forest\udmanagement (structural particularities of the forest) and three are related to environmental\udcontext. The study was conducted in a mixed forest located in Ursoaia\udarea from Frasin, Suceava Forest Department, Romania. The factors were evaluated\udin 96 plots from 6 forest stands, 3 of them included in a scientific reservation, and\ud3 are timber production stands. The index values were calculated for each plot,\udand further for each forest stand. Index values varied from a stand to another, also\udwithin the same stand, from one sample plot to another according to the specific\udfeature identified in each plot. The index values were higher in the stands included\udin the scientific reservation. This is explained by the number of tree species, the\udhigh number of large trees, the vertical structure of the stands, the amount of dead\udwood. IBP – index is a good tool to evaluate the forest biodiversity. The results can\udbe analyzed for longer periods of time, and also may indicate the factors that can be\udimproved by specific action