Maziar Haidari

[ 1 ] - Evaluation of Pinus Eldarica Hazardous Criterias in the Babol City (Mazandaran Province, Northern State of Iran)

Any defects in street trees may cause injuries to human, vehicles and buildings. This research was investigated in the Babol city, Mazandaran province, in the northern state of Iran.Used the perfect inventory methods and measured the diameter at breathe height (DBH), height and hazardous criteria (dead woods, cracks or seams, decay, wound or cankers, root problems, weak branch unions and skew f...

[ 2 ] - Identifying Forest Types Associate with Physiological Factors in Middle Zagros Forests in Iran

Physiological factors have effects on most forest parameters such as forest classification so that understanding knowledge about this subject is important to manage forests. The forests of Sorkhake-sanjabi village with area of 1645 ha located in Eslam Abad city, Kermanshah province, Iran were selected. 23 sample plots with rectangular shape (40m*50m) were selected and the species, origin of spe...

[ 3 ] - Determination of suitable sampling methods for study of canopy cover in the Oak Forest

To detection of suitable sampling method to study tree canopy cover in the northern Zagros forest, Baneeh region forest, Kurdistan province, and west of Iran was selected. 40 square sample plots one hectare (100×100 m) were selected and perfect inventoried. In every sample plot the position of tree, kind of species and two diameter of crown (m) were recorded. To study of canopy cover different ...

[ 4 ] - The impact of fire on the forest and plants diversity in Iranian Oak forest

Fire, as a natural ecological disturbance factor in forest, this study located in the Marivan region, Northern Zagros forest, and western Iranian state of Kurdistan. In each burned and unburned area 30 circle sample plot (1000 m2) were collected by randomized–systematic method in the 100×200 m net (in total 60 plots). In every sample plot the kind of species, number of tree, the heig...

[ 5 ] - Evaluation of different sampling method to study of Diameter at Breath Height in the Zagros forest

For maintaining of Zagros forests role in wild life, water and soil conservation, the suitable solutions and methods for assessing the existing conditions and planning for management of this forests should be given. To detection of suitable sampling method to study tree Diameter at Breath Height in the northern Zagros forest, Blake forest, in Baneeh region, Kurdistan province, and west of Iran ...

[ 6 ] - بررسی رویش قطری بلوط ایرانی و ارتباط آن با مشخصه‌های اقلیمی 29 سال اخیر در جنگل‌های زاگرس میانی (بررسی موردی: جنگل‌های سامان عرفی سراب کارزان ایلام)

هدف از این پژوهش، بررسی تأثیر مشخصههای اقلیمی بر مقدار رویش قطری درختان بلوط ایرانی در جنگلهای سامان عرفی سراب کارزان در استان ایلام است. در این بررسی از اطلاعات اقلیمی در بازة 29 ساله (93-1365) ایستگاه هواشناسی ایلام استفاده شد و میانگین برخی از مشخصههای ماهانه استخراج شد. برای بررسی رویش قطری درختان تعداد 15 درخت با قطر بین 20 تا 25 سانتیمتر انتخاب و با متة سالسنج نمونة رویشی به طول 10 ...

[ 7 ] - تاثیر ارتفاع از سطح دریا بر مشخصات کمی بذر درختان بنه در جنگل‌های ایرانی – تورانی (مطالعه موردی: جنگل باغ شادی یزد)

بذر عامل در امر احیا، توسعه جنگل‏ها و جنگل‏کاری‏ها محسوب شده که در این میان انتخاب بذرهای با کیفیت و رسیده دارای اهمیت بسیاری است. جنگل باغشادی (بخش قرق جنگل) واقع در شهرستان خاتم استان یزد در این تحقیق با هدف مقایسه مشخصه‏های کمی بذر درخت بنه در طبقات ارتفاع از سطح دریا انتخاب شد. منطقه فوق به سه کلاسه ارتفاعی شامل کلاسه1 با ارتفاع کمتر از 2100 متر، کلاسه 2 با ارتفاع بین 2100 تا 2500 متر و کل...

[ 8 ] - Evaluation of Pinus Eldarica Hazardous Criterias in the Babol City (Mazandaran Province, Northern State of Iran)

Any defects in street trees may cause injuries to human, vehicles and buildings. This research was investigated in the Babol city, Mazandaran province, in the northern state of Iran.Used the perfect inventory methods and measured the diameter at breathe height (DBH), height and hazardous criteria (dead woods, cracks or seams, decay, wound or cankers, root problems, weak branch unions and skew f...

[ 9 ] - Identifying Forest Types Associate with Physiological Factors in Middle Zagros Forests in Iran

Physiological factors have effects on most forest parameters such as forest classification so that understanding knowledge about this subject is important to manage forests. The forests of Sorkhake-sanjabi village with area of 1645 ha located in Eslam Abad city, Kermanshah province, Iran were selected. 23 sample plots with rectangular shape (40m*50m) were selected and the species, origin of spe...

[ 10 ] - Determination of suitable sampling methods for study of canopy cover in the Oak Forest

To detection of suitable sampling method to study tree canopy cover in the northern Zagros forest, Baneeh region forest, Kurdistan province, and west of Iran was selected. 40 square sample plots one hectare (100×100 m) were selected and perfect inventoried. In every sample plot the position of tree, kind of species and two diameter of crown (m) were recorded. To study of canopy cover different ...

[ 11 ] - The impact of fire on the forest and plants diversity in Iranian Oak forest

Fire, as a natural ecological disturbance factor in forest, this study located in the Marivan region, Northern Zagros forest, and western Iranian state of Kurdistan. In each burned and unburned area 30 circle sample plot (1000 m2) were collected by randomized–systematic method in the 100×200 m net (in total 60 plots). In every sample plot the kind of species, number of tree, the heig...

[ 12 ] - Evaluation of different sampling method to study of Diameter at Breath Height in the Zagros forest

For maintaining of Zagros forests role in wild life, water and soil conservation, the suitable solutions and methods for assessing the existing conditions and planning for management of this forests should be given. To detection of suitable sampling method to study tree Diameter at Breath Height in the northern Zagros forest, Blake forest, in Baneeh region, Kurdistan province, and west of Iran ...

[ 13 ] - The impact of fire on the forest and plants diversity in Iranian Oak forest

Fire, as a natural ecological disturbance factor in forest, this study located in the Marivan region, Northern Zagros forest, and western Iranian state of Kurdistan. In each burned and unburned area 30 circle sample plot (1000 m2) were collected by randomized–systematic method in the 100×200 m net (in total 60 plots). In every sample plot the kind of species, number of tree, the heig...

[ 14 ] - بررسی پدیده زوال بلوط در درختان با ابعاد تاج مختلف در جنگل های زاگرس میانی (مطالعه موردی: ایلام)

Oak decline is an eminent factor, which has a significant role in degradation and change in Zagros forests. The goal of present study was to assess the crown surface area of oak trees in Sarableh forests, Ilam province. For this purpose, permanent sample plots were used. Eighty sample plots with 10 Ar area were applied based on systematic-random method in a 150×200 survey network in 120 ha. The...

[ 15 ] - The impact of fire on the forest and plants diversity in Iranian Oak forest

Fire, as a natural ecological disturbance factor in forest, this study located in the Marivan region, Northern Zagros forest, and western Iranian state of Kurdistan. In each burned and unburned area 30 circle sample plot (1000 m2) were collected by randomized–systematic method in the 100×200 m net (in total 60 plots). In every sample plot the kind of species, number of tree, the heig...