نتایج جستجو برای: oriental beech

تعداد نتایج: 14151  

Bayat, Mahmoud, Hamidi, Seyedeh Kosar, Sadeghzadeh, Mohammad hossein,

Quantifying forest growth and determination of its affective factors are fundamental for forest management. This study examines the effects of biotic and abiotic factors on the diameter increment of oriental beech (Fagus orientalis Lipsky) in a high-elevation forest in northern Iran using permanent sample plots. The aim of this study was identification and quantifying environmental factors such...

KH. Sagheb-Talebi M. Amiri R. Rahmani

Canopy gaps are one of the most important structural features of forest ecosystems, and studying of them can have useful results and implications for forest management. The aim of this study is investigation of characteristics and regeneration within canopy gaps in an intact beech stand in the Shastkalateh Experimental Forest of Hyrcanian region, north of Iran. All canopy gaps and related fores...

Journal: :environmental resources research 2014
mojtaba amiri ramin rahmani khosro sagheb-talebi hashem habashi

investigation on structure and dynamics of natural forest ecosystems is an important issue for silvicultural decisions. the aim of this study is to analysis dynamics and structure of a beech stand during 5-year period in the shast kalateh forest in the caspian region, north of iran. data were collected from a 16.9ha permanent research plot established in a natural unlogged stand in 2006. all li...

Journal: :Maderas-ciencia Y Tecnologia 2021

This study was made to determine surface characteristics such as colour, gloss, and hardness changes of Oriental beech (Fagus orientalis). The wood specimens were firstly impregnated with some fire-retardants (FRs) primed epoxy resin (EPR) then coated polyurethane/polyurea hybrid (PUU). 3 % aqueous solution boric acid (BA), borax (BX), mixture (1:1), ammonium sulphate (AS). While Sikafloor®-15...

2015

In this study which has been conducted in Akçasu Forest Range District of Devrek Forest Directorate; 3 methods (weed control with labourer power, cover removal with Hitachi F20 Excavator, and weed control with agricultural equipment mounted on a Ferguson 240S agriculture tractor) were utilized in weed control efforts in regeneration of degraded oriental beech forests have been compared. In this...

Journal: :جنگل و فرآورده های چوب 0
محمود بیات دکتری جنگل داری، دانشکدۀ منابع طبیعی دانشگاه تهران، کرج، ایران منوچهر نمیرانیان استاد دانشکدۀ منابع طبیعی دانشگاه تهران، کرج، ایران محمود زبیری استاد دانشکدۀ منابع طبیعی دانشگاه تهران، کرج، ایران

the oriental beech constitute one third of northern forests area and stocking volume in the north ofiran. these stands obseve in pure and mixed. in order to properly management which guaranteesustained yield, it is crucial to collect basic information including stocking (volume and stem number),tree growth, diameter distribution pattern, diameter-height relationship, diameter-volume relationshi...

نیکوی, مهرداد, همرنگ, نازنین, پوربابائی, حسن,

  Information about gaps and their sizes distribution is useful for protecting herbaceous diversity. This study was conducted to investigate the effect of gap size on herbaceous species diversity in oriental beech (Fagus orientalis Lipsky.) stand in Asalem, Guilan province. For this study, fifteen gaps in small, medium, and large sizes were randomly selected. Then, herbaceous species were ident...

Journal: :Bioresources 2023

Sapele, pine, limba, iroko, beech, and oak wood species are important used indoors outdoors, as supplied by furniture companies. It is known that the color changes in material when exposed to external environment. This an factor for outdoor use of material. In this study, parameters Scotch pine (Pinus sylvestris L.), oriental beech (Fagus orientalis limba (Terminalia superba Engl. et Diels), sa...

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