نتایج جستجو برای: hyrcanian forests

تعداد نتایج: 39508  

پایان نامه :0 1371

in order to examine the ecological conditions and characteristics of fraxinus excelsior l. in the northern forests of iran 6 main areas as well as some miscellaneous ones , have been selected in the region respectively in : lomir2, shafaroud , park - e-noor , ahlam , alandan and noor.

Journal: :European Journal of Forest Research 2021

Abstract Pterocarya fraxinifolia , native to the southern Caucasus and adjacent areas, has been widely introduced in Europe. In this study, we investigate following: (1) How did its current distribution form? (2) What are past, current, future suitable habitats of P. ? (3) is best conservation approach? Ecological niche modeling was applied determine climatic demands project climatically areas ...

Journal: :Annals of forest science 2021

Nitrogen (N) addition (10 and 15 g N m −2 year −1 as dissolved $${\mathbf{N}\mathbf{H}}_{4}{\mathbf{N}\mathbf{O}}_{3}$$ ) significantly increased the CO 2 efflux from forest soil fine root biomass in a maple (Acer velutinum Bioss.) plantation. Following seasonal pattern, showed an exponential relationship with temperature. The effect of atmospheric deposition on CO2 is still unclear Hyrcanian f...

Journal: رستنیها 2014
Abaselt Hosseinzadeh Colagar Fatemeh Akbarzadeh Roshan Hamed Yousefzadeh,

Species in the genus Castanea Mill. are one of the worthwhile species in the Hyrcanian forest of west Guilan (N Iran) with low region such as Siahmazgi, Ghalerodkhan and Visrod. that do not have good condition by reason of human interfering and disease. They have varying economic importance as nut tree crops, therefore, DNA barcoding technique can be a straightforward method for taxonomic statu...

Journal: :Forests 2023

Reforestation with native and non-native tree species is one of the most effective strategies to cope climate change, also management method for solving soil erosion problems in degraded forests around world. The current research investigates three skid trails, which were planted clearcutting areas, comparison a natural forest hornbeam (CB; Carpinus betulus L.) velvet maple (AV; Acer velutinum ...

Journal: :iForest - Biogeosciences and Forestry 2009

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