Zobrazeno 1 - 4
of 4
pro vyhledávání: '"Nasrollah Rafatnia"'
Autor:
Reza Arefian, Nasrollah Rafatnia
Publikováno v:
تحقیقات جنگل و صنوبر ایران, Vol 5, Iss 1, Pp 87-124 (2001)
This investigation was carried out in an area within Ziarat- Gorgan Forest Management Project. The materials and methods consisted of two stages: 1- Informantion and map collection and preparation, 2-Soil mechanics tests. Different maps including geo
Externí odkaz:
https://doaj.org/article/38b12866dc7c462886c9ab8cb29731e3
Publikováno v:
تحقیقات جنگل و صنوبر ایران, Vol 19, Iss 2, Pp 351-340 (2011)
Regarding to special situation of northern forests in Iran, chainsaw is a unique cutoff. Nevertheless, study to evaluat operation efficiency is imperative. Present study was carried out with the aim of time study of cutting operation, estimating the
Externí odkaz:
https://doaj.org/article/3dec58dbf69b4c2d853db747b74c0af9
Publikováno v:
تحقیقات جنگل و صنوبر ایران, Vol 16, Iss 4, Pp 573-556 (2008)
Identification of susceptible areas to landslide occurrence is one of the basic measures in reduction of possible risk and hazard management. The main goals of this paper are investigation on designed forest road network according to landslide hazard
Externí odkaz:
https://doaj.org/article/4d283a56c20749d8b1e5c323f150b03b
Publikováno v:
تحقیقات جنگل و صنوبر ایران, Vol 16, Iss 1, Pp 97-87 (2008)
Siyahkal forest in Guilan province consists of industrially valuable hardwood species such as Beech (fagus orientalis) and Hornbeam (Carpinus betulus), which have significant economic value. This research evaluated the damages caused by felling opera
Externí odkaz:
https://doaj.org/article/c24a9214274445fc8695c8e913f6bb99