نتایج جستجو برای: arasbaran region
تعداد نتایج: 538074 فیلتر نتایج به سال:
Arasbaran protected area is located in NW Iran, is one of nine designated Biosphere Reserves in Iran. According to the literatures and the current study, 1067 plant taxa are identified in the area. Eighteen plant taxa of the area are endemic to Iran. Hemicryptophytes (42.5 %) are the most frequent life forms in the reserve followed by therophytes (25.8 %), cryptophytes (18.8 %), phanerophytes (...
Sampling methods have a theoretical basis and should be operational in different forests; therefore selecting an appropriate sampling method is effective for accurate estimation of forest characteristics. The purpose of this study was to estimate the stand density (number per hectare) in Arasbaran forest using a variety of the plotless density estimators of the nearest neighbors sampling me...
abstract in aggregate, active forms of reactive silica with mineral names are sometimes associated with sand and gravel in concrete mixture. alkali hydroxides originated from alkalis in the cement or other resources form an alkaline silica gel with this reactive silica which becomes swallowed and expanded during time causing damage to concrete. there have been growing researches on alkaline r...
stool examinations undertaken among 961 inhabitants ora few villages ~ ~ in dickleh, azerbaijan, northwest iran, revealed the presence of ascaris among 62 ~j:j of the persons examined. in addition, 17.3 ~~ ;; were found infected respectively with 1'. trichiura, trichostrongylus spp. and h. nana. the eggs of oxyuris and taenia were seen in the stool of 3.4 ii () and 1./5 (j 0 respectively, and 3...
Species composition can vary among different types of habitat and is defined by the dependency species on resources. The positive relationship between forest functions increasing interest to researchers. In this study, we focused structural complexity index (SCI) Caucasian grouse (Lyrurus mlokosiewiczi) habitat, which an indicator in mountain habitats Arasbaran biosphere reserve, Iran. Data wer...
the essential oils of the aerial parts of a. armeniaca and a. incana , collected from arasbaran area (east azarbaijan province, iran) were extracted by hydrodistillation and analyzed by gc-ms. in total, 16 and 40 constituents were identified and quantified in the oils of a. armeniaca and a. incana representing 80.5% and 84.6% of the oils, respectively. the essential oil of a. armeniaca was main...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید