the present research was performed in patom, namkhaneh, gorazbon, chelir and baharbon districts in kheyrud forest. due to existence of forest typology map and extension of study area, this study was confined to beech dominated forests. a stratified sampling method based on landform is used to locate 1000 m2 circular sample plots. the number of fagus orientalis lipsky trees ? 7.5 cm in dbh withi...

Beech (Fagus orientalis Lipsky) forests in Iran are one of the most important sources hardwood species used for lumber, furniture, and interior object design due to its hardness, wear resistance, strength, excellent bending capabilities. Furthermore, is third country walnut wood production after China United States. Therefore, this study, we compared specific mechanical properties between beech...

Determining the productivity of forest sites through various classification techniques is important for making appropriate forest management decisions. Forest sites were classified using direct and indirect (site index) and remote sensing (Landsat 7 ETM and Quickbird satellite image) methods. In the direct method, forest site classifications were assigned according to edafic (soil properties), ...

A study was made of the mass drying eastern spruce (Picea orientalis (L.) Link) in Teberdinsky Nature Reserve (North Caucasus). The main cause an outbreak number bark beetle (Ips typographus L.) whose reproduction occurred hot seasons 2012 and 2015. existing undergrowth not affected. By 2019, 7 years after beginning spruce, most groups had died out, single active foci were noted. There are almo...