one of the indicators of management and sustainability control of forest resources is the definition deforestation and degradation types. these factors hazard quantitative and qualitative of the iranian forests. in this study with integrated approach, different forms of forest degradation identified in the forest areas with a reviews of library resources and then investigation the degree of sta...

during the study of natural enemies of insect pests of forest trees and shrubs in arasbaran forest of iranian province of east azarbaijan, a number of larvae of yponomeuta evonymella l. were collected on wild cherry trees. the specimens were reared in the laboratory, where parasitoid wasps of the family ichneumonidae emerged and later identified as agrypon canaliculatum (ratzeburg, 1844). the i...

Vegetation cover is known as one of the most dominant parameters in soil erosion that can considerably affect drivers. This study aimed to assess effects vegetation on conservation Arasbaran Forests, Iran. A part Arsbaran forests has been protected for 45 years. The other not under protection during these was carried out order investigate forest management changes amount and compare it with non...

the present paper deals with the fauna of the subfamily conopinae in northwestern iran. specimens were collected, using insect net, from arasbaran forest during 2010-2013. in total, six species belonging to two genera were identified, of which the two species, conops longiventris kröber, 1916 and physocephala laticincta (brulle, 1833), are new records from iran. the diagnostic characters and su...

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 ...

Cornus mas L. (Cornaceae family) known as the Asiatic and European cornelian cherry is a species of dogwood native to Southwest Asia and Southern Europe. Cornelian cherry is an obviously growing dogwood species in Arasbaran (East Azerbaijan, Iran). It is a medium to large deciduous shrub or small tree growing to 5-12 m tall, with dark brown branches and greenish twigs(Tural and Koca, 2008). The...

The study of the effective factors for forest fire prevention policy can help to reduce long term extensive environmental damage. In other words, management is result a complex interaction many criteria. present aims analyze most criteria Arasbaran forest, Iran, based on Technique Order Performance by Similarity Ideal Solution (TOPSIS) and Simple Additive Weighting (SAW) methods. five top optim...