DIGITALNA ARHIVA ŠUMARSKOG LISTA
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| ŠUMARSKI LIST 9-10/2022 str. 39 <-- 39 --> PDF |
mountains of north-eastern and north-western Turkey. Introgression with Abies nordmanniana (Steven) Spach. subsp. equi-trojani (Asch. & Sint. ex Boiss.) Coode & Cullen occurs in the western part of its range. Abies nordmanniana subsp. equi-trojani grows in pure stands as isolated relict populations on the north slopes of high mountains in western Turkey and on Uludağ in the western Black Sea Region of Turkey. It is a drought sensitive species (Yildiz et al., 2007) and prefers calcareous soils (Farjon, 1990). In this study, beyond the standard flora studies, it is aimed to group the plant species and numbers in the Trojan fir (Abies nordmanniana (Steven) Spach. subsp. equi-trojani (Asch. & Sint. ex Boiss.) Coode & Cullen) forests in the Bolu-Aladağ region of Turkey depending on the stand types and to reveal the relationship of diversity indices with Trojan fir stands. MATERIAL AND METHODS MATERIJAL I METODE General Characteristics of the Study Area – Opće značajke područja istraživanja In order to reveal the vegetative diversity in the Trojan fir forests, the stands to be sampled were determined within the borders of the Aladağ Forest Enterprise, where the species is widely distributed. The study area is located between 31° 32’ 35’’ - 31° 47’ 15’’ E and 40° 34’ 24’’ - 40° 40’ 03’’ L (European Datum 1950) (Figure 1). The region is characterized by high mountainous terrain and generally consists of flat plateaus and wide plains between them (Dündar, 1989). Although Aladağ is located in the Black Sea macro-climatic region, it shows some distinctions from this climate due to the presence of large mountain ranges in-between and because it is far away from the Black Sea coast. At the same time, a summer drought prevails in the region, which is characteristic for the area adjacent to the Central Anatolia steppe transition zone, although the rainfall is high. The annual average precipitation is 963 mm, and the annual average temperature is 6.2 ºC (Dündar, 1989). The elevation of the sampling areas varies between 1500 m and 1700 m above sea level. Determination of Stands for Sampling of Ground Flora – Određivanje sastojina sa uzorkovanja prizemne flore The study was carried out in mixed-aged vertically layered fir stands. In the study, it was aimed to reveal the plant diversity in fir stands (GA, GB, GC, GD) on different aspects (north, south) in different periods (June, July, August, September) with two repetitions. 10 quadrates were taken in each stand in every sampling in different periods. The |