نتایج جستجو برای: tree density northern zagros forest

تعداد نتایج: 762413  

Abas Jamshidi Bakhtar, Khosro Sagheb-Talebi Maziar Haidari, Mohamad Reza Marvi Mohajer

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...

Abas Jamshidi Bakhtar, Khosro Sagheb-Talebi Maziar Haidari, Mohamad Reza Marvi Mohajer

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...

Abas Jamshidi Bakhtar, Khosro Sagheb-Talebi Maziar Haidari, Mohamad Reza Marvi Mohajer

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...

Dorna Rezaei, Elmira Kafash Saei Sehar Delpasand Yousef Askari,

Spatial pattern of trees can possibly indicate stand history, population dynamics, and species competition. This research was investigated in the Chahartagh forest reserve, Ardal region, chaharmehal and Bakhtiari Province, Central Zagros forest, and southwest Iranian state. In this study 53 hectare of the study area was selected and perfect inventory.  Information includes the position and kind...

2008
R. V. Platt Tania Schoennagel

In the wake of numerous catastrophic wildfires, forest management policies have been implemented in recent years in the United States, including the Healthy Forest Restoration Act of 2003. A key premise underlying these policies is that fire suppression has resulted in denser forests than were present historically in some forest types. We evaluate this premise for the montane zone of the northe...

Journal: :محیط شناسی 0
علی جعفری استادیار گروه علوم جنگل دانشکدۀ منابع طبیعی دانشگاه شهرکرد زهرا آرمان دانشجوی کارشناسی ارشد جنگل داری، دانشکدۀ منابع طبیعی و علوم زمین، دانشگاه شهرکرد علی سلطانی استادیار گروه علوم جنگل، دانشکدۀ منابع طبیعی و علوم زمین، دانشگاه شهرکرد علی لطفی هیات علمی دانشگاه صنعتی اصفهان

introduction forest ecosystems have continuously downgraded due to every environmental pressure including climate change, aerosols deposits, industrial pollutions and other degradation factors. the output soon or late would be a different forest. forest monitoring is a well-regulated and usually long running procedure, which has the ability to detect these phenomena and reactions based on aims ...

Dorna Rezaei, Elmira Kafash Saei Sehar Delpasand Yousef Askari,

Spatial pattern of trees can possibly indicate stand history, population dynamics, and species competition. This research was investigated in the Chahartagh forest reserve, Ardal region, chaharmehal and Bakhtiari Province, Central Zagros forest, and southwest Iranian state. In this study 53 hectare of the study area was selected and perfect inventory.  Information includes the position and kind...

Dorna Rezaei Elmira Kafash Saei Sehar Delpasand Yousef Askari,

Spatial pattern of trees can possibly indicate stand history, population dynamics, and species competition. This research was investigated in the Chahartagh forest reserve, Ardal region, chaharmehal and Bakhtiari Province, Central Zagros forest, and southwest Iranian state. In this study 53 hectare of the study area was selected and perfect inventory.  Information includes the position and kind...

Dorna Rezaei Elmira Kafash Saei Sehar Delpasand Yousef Askari,

Spatial pattern of trees can possibly indicate stand history, population dynamics, and species competition. This research was investigated in the Chahartagh forest reserve, Ardal region, chaharmehal and Bakhtiari Province, Central Zagros forest, and southwest Iranian state. In this study 53 hectare of the study area was selected and perfect inventory.  Information includes the position and kind...

Crataegus pontica, Cerasus microcarpa and Amigdalus orientalis are from important accompanying woody plant species in Zagros forests and their regeneration dynamic helps to improve the regeneration of tree species. This research was carried out with the aim of investigating and recognizing the regeneration establishment pattern of C. pontica, C. microcarpa and A. orientalis in three forest site...

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