نتایج جستجو برای: asalem

تعداد نتایج: 37  

This study is investigate to ecological characters, ethnopharmacology, total phenols (TP), flavonoids (TF), anthocyanins (TA) contentand antioxidant capacity in leaves and fruit of Vaccinium arctostaphylos L. from two natural habitats from Gilan provinve, which has been used as a heart tonic ,anti diabeteand anti tumor. Ecological requirements were obtained in many field observation, ethno phar...

Journal: :جنگل و فرآورده های چوب 0
بیت الله امان زاده دانشجوی دکتری علوم جنگل، دانشکدﮤ منابع طبیعی، دانشگاه علوم کشاورزی و منابع طبیعی ساری، ساری، ایران محمد رضا پورمجیدیان دانشیار، دانشکدﮤ منابع طبیعی، دانشگاه علوم کشاورزی و منابع طبیعی ساری، ساری، ایران خسرو ثاقب طالبی دانشیار پژوهش، مؤسسة تحقیقات جنگل‏ها و مراتع کشور، تهران، ایران سید محمد حجتی دانشیار، دانشکدﮤ منابع طبیعی، دانشگاه علوم کشاورزی و منابع طبیعی ساری، ساری، ایران

in order to study the effect of canopy gap size on species diversity and composition in mixed stands, a reserved area which located in asalem forests was selected. all of gaps in this area identified and were divided into four categories: small gaps (1000 m2). in each category, 21 of gaps with a relatively homogeneous in terms of an aspect and slope were selected. the major and minor diameter o...

Journal: :global journal of environmental science and management 0
m. yousefpoor faculty of natural resources, department of forestry, university of guilan, somehsara, guilan, iran t. rostamie shahraji faculty of natural resources, department of forestry, university of guilan, somehsara, guilan, iran a. eslam bonyad faculty of natural resources, department of forestry, university of guilan, somehsara, guilan, iran m. salahi faculty of basic sciences. university of guilan, rasht, iran

in order to evaluate the possible correlation between the tree density and the human population density, the forested area in nav asalem district located in guilan province was selected. the descriptors of tree number and basal area per hectare as well as the stand density index were used to determine the tree density, which was conducted from a 2014 forest inventory including 62 cluster (558 p...

In order to evaluate the possible correlation between the tree density and the human population density, the forested area in Nav Asalem district located in Guilan Province was selected. The descriptors of tree number and basal area per hectare as well as the stand density index were used to determine the tree density, which was conducted from a 2014 forest inventory including 62 cluster (558 p...

ثاقب طالبی, خسرو, سفیدی, کیومرث, پورقلی, زینب, کیوان بهجو, فرشاد,

Small-scale disturbances that create canopy gaps play a key role in regulating successional pathways in temperate forests. This research was carried out with the aim of investigating the structural characteristics of natural canopy gaps in the in the Gap making phase during the development of beech stands in the Asalem forests-Guilan as the initial phase of the development of beech stands. Thre...

Forest roads can create small- scale climate change. These changes can vary with the road age and topographic conditions. This study aimed to identify ecological species group as well as study the relationship between vegetation and environmental factors based on the road age. The study was carried out in three-districts of Nav- Asalem in Watershed 7 of forests of North of Iran. Therefore, 140 ...

آزاده , سیدرضا , تقوایی, مسعود,

The field of natural hazards research has a rich history in geography, appropriately so because it involves conflicts between physical processes and human systems. Natural events occur without direct human effect and endanger his social life. Events that enforce average annual up to 150000 human damages and more than 140 milliard dollars financial damages on counties and especially developing c...

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