بررسی فلوریستیک، کورولوژی و مدل توزیع فراوانی گیاهان پارک جنگلی بی بی یانلو آستارا

The aim of this study was to investigate vegetation composition in broadleaved  and conifers plantations in 220 ha of  Loblloly pine (Pinus taeda), alder (Alnus glutinosa( and poplar (Popolus deltoides) hardwood plantations and its comparison with natural forests in Bibiyanlu protected forest park, Astara. A total of 60 sampling plots of 1000 m2 were taken using randomly-systematic method with150 × 150 m grid in plantation and 200 × 200 m in natural forest. The results revealed that there are 92 plant species which belonged to 79 genera and 48 familing in the study area. The familing of Rosaceae, Lamiaceae, Aspidiaceae and Poaceae had the highest value. The results of the classification of life forms based on Rankiaer’s method showed that Hemicryptophytes and Phanerophytes with total of 67% were the most important in the area. Studying on geographical distribution of plants indicated that the most species belongs to Europe – Siberian region (28%).