Flora, Life Forms and Chorotypes of Forest Floor Plants in the Asalem Forests, Western Hyrcanian, Iran
DOI:
https://doi.org/10.29329/silva.2022.462.05Keywords:
Forest floor plants, Life forms, Chorotypes, Asalem forestsAbstract
The aim of this research was to introduce the forest floor plants species, their life-forms, and describe their geographic distribution in the Asalem Watershed basin (no.7), Western Guilan province (part of Western Hyrcanian) in northern forests of Iran. The Asalem forest is one of the most important and valuable areas of Caspian forest in Iran. The study was conducted on 91 plots of 400 m2 (20 × 20 m) along 19 transects in the basis of a random- systematic sampling design. Inside each main plot, three quadrates (5 × 5 m) on the diagonal line and internal quadrates (1 × 1 m) were chosen, and all of the floor plants collected. The results revealed that there were 306 species, 181 genera and 54 families. The main family was Poaceae with 36 species and 25 genera (12%). Then, the highest number of species belonged to the Asteraceae with 28 species, Fabaceae with 26 species, Lamiaceae with 20 species, Rosaceae with 14 species, Apiaceae and Cyperaceae each including 13 species, Caryophyllaceae with 12 species, Rubiaceae and Orchidaceae each including 11 species. Regarding to the life forms, Hemicryptophytes with 45% (137 species) were the largest group. The chorological analysis indicated that species belonging to the regions of Euro-Siberian were the most significant ecological groups.References
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