نتایج جستجو برای: arasbaran
تعداد نتایج: 98 فیلتر نتایج به سال:
Nitrogen oxides and carbon monoxide gases together with dust are known as the major pollutants arising during the blasting operations using the ammonium nitrate-fuel oil (ANFO) explosive at the Sungun surface mine, located in the northwest of Iran. The pollutants were monitored during some blasting operations at the mine. It was concluded that the gases and dust clouds initially went up to the ...
The road network is an important element for sustainable forest ecosystem management. On the other hand, efficiency and quality of road design can be improved by considering of environmental and technical principles. Therefore, this study was performed to determine the capability of Arasbaran protected area for road passing and communication routes in order to use in the area management. For th...
forest roads are basic infrastructures for management of forested areas. sustainable management of roads depends on regular and timely forest road maintenance. road inventory is as an important tool to recognize the needs of roads and do corresponding correction operations. gis can be a powerful tool for acquirement, analysis and management of data in road management. the purpose of this study ...
Proper understanding of the diversity and natural structure woody species impacts human interventions are prerequisites for maintaining remaining forests as well restoration deforested degraded areas. This research was conducted to document impact on population in Arasbaran biosphere reserve Iran due limited insufficient knowledge. The study area divided into three adjacent sampling areas low, ...
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...
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