نتایج جستجو برای: northern iran forests
تعداد نتایج: 247679 فیلتر نتایج به سال:
forest classification on the basis of satellite images is a promising technique both for primary map production and for map updating and forest monitoring. for accurate for-est classification into three classes, using mapping by canopy cover density “high spatial resolution satellite images have to be used in order to obtain the required spatial detail” [schneider, 1999]. at the same time, the ...
Raveniola niedermeyeri (Brignoli, 1972), a poorly known species, is rediagnosed and redescribed from the types and from recently collected material from northern and central regions of Iran. This species differs from its congeners in having the male embolus curved distally, as well as in the unique conformation of the spermathecae. New data on the distribution of Raveniola niedermeyeri in Iran ...
Northern forests are important ecosystems for carbon (C) cycling and lakes within them process and bury large amounts of organic-C. Current burial estimates are poorly constrained and may discount other shifts in organic-C burial driven by global change. Here we analyse a suite of northern lakes to determine trends in organic-C burial throughout the Anthropocene. We found burial rates increased...
In the central and northern highlands of Ethiopia, native forest and forest biodiversity is almost confined to sacred groves associated with churches. Local communities rely on these 'church forests' for essential ecosystem services including shade and fresh water but little is known about their region-wide distribution and conservation value. We (1) performed the first large-scale spatially-ex...
گونه petasites albus (l.) gaertner به عنوان گزارش جدیدی از جنگلهای شمال ایران نام برده می شود. این گونه از petasites hybridus (l.) p. gaertner به علت داشتن کرک های دائمی تار عنکبوتی در زیر برگها و گل آذینی بلند و کشیده و گل های سفید رنگ با برگه های گریبانه ای غده دار متفاوت است.
OBJECTIVE Cystic fibrosis and its distribution vary widely in different countries and/or ethnic groups. Common cystic fibrosis transmembrane conductance regulator (CFTR) mutations were reported from Iran, but the northern population was not or underrepresented in those studies. The aim of this study was to determine the frequency of common CFTR mutations in children from northern Iran. METHOD...
Specimens of the subfamily Rogadinae (Hymenoptera: Braconidae) were collected in northern Iran during 2010-2011 with a series of Malaise traps. Twelve species belonging to three genera (Aleiodes Wesmael, 1838, Heterogamus Wesmael, 1838 and Clinocentrus Haliday, 1833) were identified, with one genus (Heterogamus) and seven species new for the fauna of Iran. An updated checklist of the genera and...
Poisoning is a frequent cause of referral to medical emergencies and a major health problem around the world, especially in developing countries. We aimed to review the epidemiology and pattern of adult poisoning in Iran in order to facilitate the early diagnosis and management of poisoning. The pattern of poisoning is different in various parts of Iran. Pharmaceutical compounds were the most c...
INTRODUCTION Everyone knows that forest is the source of water for all people who live on Thai soil. We do not have any other source of water in Thailand ... [the forest] provides for underground water storage, making the ground moist as a benefit for all people... The result of cutting forest is the destruction of the water source of the Thai people. (Royal Forest Department/Suan Pa Sirikit, 1...
The forests in Sardasht area in the West Azarbaijan Province were quantitatively studied in this research. Based on Importance Value Index, in general, two types of forests have been identified: Quercus libani Oliv. in the northern, northeastern and northwestern aspects and Quercus brantii Lindl. in the southern, southeastern and southwestern and eastern aspects. The mean of vegetation crown pe...
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