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Ecopersia، جلد ۸، شماره ۳، صفحات ۰-۰
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عنوان انگلیسی EFFECT OF ENVIRONMENTAL FACTORS ON NATURAL REGENERATION OF BEECH STANDS IN THE HYRCANIAN FORESTS: CASE STUDY: KOJOOR FOREST, NAMKHANEH DISTRICT OF KHEYROUD FORESTS
چکیده انگلیسی مقاله Aims Natural regeneration will guarantee forest future and sustainability. Ecological factors may influence regeneration process and provide a variety of sites favorable for seed generation and establishment of different plant species. In this study we evaluate the environmental factors effects on Fagus orientalis regeneration in Kojoor forest, one of Hyrcanian inscribed site on the UNESCO's Natural World Heritage List. Material & Methods Sampling carried out with 2.5 % of statistical intensity after determination of high valued and undisturbed stands of F. orientalis Lipeskey on the vegetation map. The effects of abiotic ecological factors including topography (exposition, elevation, slope), soil type (Pseudoglay, Brown forest soil, Brown marmorized), canopy closure (50-70%, >70 %) on abundance of regeneration were studied on 60 plots. Findings Results show that all considered factors had significant effect on seedlings abundance. The highest seedlings abundance occurs in 70< canopy cover in northeast direction with the elevation of 1,000 to 1,200 m a.s.l. This species prefers pseudoglay and forest brown soil with the slope of 0 to 40%. This set of environmental conditions are optimal conditions under which F.orientalis as a climax species of the Hyrcanian Forests will grow and reproduce. Conclusion could conclude that Kojoor forest is a developed old growth forest with a best environmental conditions for establishment and regeneration of climax species like F. orientalis. This site is undisturbed forest with less anthropogenic effects and diverse topography and soil types which make it as a best site of the Hyrcanian forests.
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نویسندگان مقاله | Moslem Akbarinia
Tarbiat Modares University
نشانی اینترنتی http://journals.modares.ac.ir/browse.php?a_code=A-10-52226-1&slc_lang=en&sid=24
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