DIGITALNA ARHIVA ŠUMARSKOG LISTA
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ŠUMARSKI LIST 9-10/2022 str. 38     <-- 38 -->        PDF

evaluations among them. Apart from conservation strategies, biodiversity information at the stand level, which is the smallest forest unit, is needed for planning in order to develop various strategies related to use and to set targets for planning and implementation.
Various floristic studies have been carried out in different regions of Turkey. These studies, which were carried out based on a specific area, not only focused on forest areas, but also tried to identify plants in other habitats in the area under consideration. Thus, although it is revealed which species are found in this area, information suitable for use in forest planning cannot be provided. These floristic studies were also carried out in the Bolu-Aladağ region of Turkey which was chosen as the study area in this research (Akman and Yurdakulol, 1981; Sazak, 1997; İkinci and Güner, 2007; Aksoy, 2010; Güneº Özkan and Aksoy, 2011; Tunçkol and Akkemik, 2013; Kanoğlu et al., 2016; Güneº Özkan et al., 2016; Koçer and Aksoy, 2016).
It will be useful to realize inventory studies on vegetative diversity on a basis that provides more information for forest planning, beyond providing a list of existing species in the area. More detailed studies on forest areas should be carried out, and the information on vegetative diversity should be expressed numerically depending on the stand types. Measuring diversity is of great importance in ecological research and conservation of biodiversity. Various indices have been developed to numerically express plant diversity depending on the presence and abundance of plants in an area (Lu et al., 2007). The Simpson index, Shannon index and total number of species are the most common indices used to describe diversity (Hill, 1973).
According to Nitzelius (1969) the geographically separated populations of Abies nordmanniana (Steven) Spach. in western and northern Turkey, described under the subspecies names and at various taxonomic levels, are found to be entirely clinal geographically. The typical subspecies occurs in western Caucasia (Abkhazia, Georgia) and in the