نتایج جستجو برای: fagus orientalis
تعداد نتایج: 5319 فیلتر نتایج به سال:
Forest type maps play a significant role in sustainable forest management. For many years aerial photos and satellite data were a primary data source supporting forest type mapping. Recent developments in remote sensing provide opportunities to further enhance forest type maps by introducing variations of spectral, biochemical and biophysical properties at various scales. A structural sampling ...
The present research was conducted to find the influence of some topographic factors on distribution of large-leaved lime (Tilia platyphyllos Scop.) and its natural regeneration characteristics in "Vaz" forest (northern Iran). After identification of site and preparation of topography map, selective sampling method was carried out for tree inventory in plots. The sample plots were circular in 1...
بررسی چین خوردگی شدن چوب‌های راش (Fagus orientalis) و پالونیا (Fagus orientalis) بر اثر تیمار گرمآبی در کنار ویژگی‌های ترشوندگی و قابلیت جذب آنها هدف‌های اصلی این پژوهش بودند. بدین خاطر، نمونه‌های چوب با ابعاد 6×6×50 سانتی‌متر تهیه شدند و سپس در درون رآکتور ویژه اصلاح چوب و در شرایط آبی، در دماهای 130 و 150 درجه سلسیوس و مدت زمان ماندگاری 30 دقیقه تیمار شدند....
Bu çalışmada, Zonguldak Gökgöl Mağarası yakınlarında Doğu kayını (Fagus orientalis Lipsky), Anadolu kestanesi (Castanea sativa Mill.) ve Adi gürgen (Carpinus betulus L.) türlerinden oluşan karışık meşcerede münferit halde bulunan 4 adet yaşlı Taxus baccata L. bireyinin anıtsal özellikleri incelenmiştir. Tahmini yaşları 915 ila 1180 arasında değişen bu ağaçların Şimdiki Anıtsal Değerleri (ŞAD) 7...
In this work, the surface characteristics of Oriental beech (Fagus orientalis L.) wood impregnated with Korasit KS, a water-based and copper-containing impregnation substance, were examined after three months natural weathering. The material was penetrated into at 3% 6% concentration levels according to ASTM D 1413-07 (ASTM 2007) standard. According results obtained, L* values all samples decre...
توصیف کمی ساختار جنگل به عنوان یکی از مناسب ترین ابزارها در مدیریت نوین جنگل در نظر گرفته می شود. در این تحقیق ساختار گونه های درختی تیپ های راش (Fagus)، راش- ممرز (Fagus-Carpinus) و راش- افرا (Fagus-Acer) جنگل های هیرکانی مورد بررسی و مقایسه قرار گرفت. به منظور انجام این تحقیق 5 قطعه نمونه یک هکتاری در هر یک از تیپ های مذکور جنگلی ناو اسالم گیلان که از لحاظ شرایط محیطی همگن بودند، آماربرداری ش...
Organic carbon is the most important component of terrestrial ecosystems and any change in its abundance can have a major impact on the processes that take place in ecosystem. The aim of this study was to estimate carbon sequestration in three different elevations (200 to 1200 m from sea level) and according to vegetation type in the Khairoodkenar forest. The highest carbon sequestration was ob...
The present research was conducted to find the influence of some topographic factors on distribution of large-leaved lime (Tilia platyphyllos Scop.) and its natural regeneration characteristics in "Vaz" forest (northern Iran). After identification of site and preparation of topography map, selective sampling method was carried out for tree inventory in plots. The sample plots were circular in 1...
To understand the Eco physiological adaptation mechanisms of Fagus orientalis Lipesk to altitude changes, the activities of Peroxidase (POD), Catalase (CAT), and Ascorbate peroxidase (APX) in leaves of Fagus orientalis in different altitudes (A1: 700 m, A2: 1200 m, A3: 1700 m above sea level) Was studied in the forests of Guilan. The sampling of leaves was collected from southern and northern ...
Doğu kayını (Fagus orientalis Lipsky), ülkemiz ormanlarının asli ağaç türlerinden birisi olan yaklaşık 1,9 milyon ha yayılış alanı ile toplam ülke ormanlarımızın %8,5’ini oluşturmaktadır. Bu çalışma kapsamında, tohum ve sürgün kökenli doğu bireylerinde bazı morfolojik fizyolojik karakterlerin alana geliş şekline yükseltiye bağlı olarak değişiminin belirlenmesi amaçlanmıştır. Çalışma kapsamında ...
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