Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Hooshang Sobhani"'
Publikováno v:
Croatian Journal of Forest Engineering, Vol 30, Iss 1, Pp 67-75 (2009)
Animal logging is one of the traditional logging systems in Iran, as in many other areas of the world. In this study, after determination of the work elements, a continuous time study method was used to develop hauling time prediction models for wood
Externí odkaz:
https://doaj.org/article/b42896cc3d404e9eb5f55ba5dd5c7d32
Publikováno v:
Croatian Journal of Forest Engineering, Vol 28, Iss 2, Pp 185-193 (2007)
Optimization of forest road network is an important part of logging planning. Matthews (1942) was the first to introduce a method for optimization of road spacing based on minimization of roading and skidding cost. The goal of this paper is to find t
Externí odkaz:
https://doaj.org/article/e33b4abe2b22416fb750af12bb27d23b
Publikováno v:
تحقیقات جنگل و صنوبر ایران, Vol 19, Iss 3, Pp 379-370 (2011)
In order to determine the role of non-wood forest products in livelihood of people, all of the forest dweller community in Kamyaran city (3725 family) were selected. Then 320 scattered families were picked out randomly by Morgan table and questionnai
Externí odkaz:
https://doaj.org/article/529bc3fbf28d4cd784a37bbcde9e1c96
Publikováno v:
تحقیقات جنگل و صنوبر ایران, Vol 19, Iss 3, Pp 395-380 (2011)
The goal of this study is presenting a proper method to improve the planning of forest roads network based on environmental, technical and economical considerations using GIS (Geographical Information System) and AHP (Analytical Hierarchy Process). S
Externí odkaz:
https://doaj.org/article/fb3d884b86134e2fb85175a8f47ee4bf
Publikováno v:
تحقیقات جنگل و صنوبر ایران, Vol 17, Iss 3, Pp 368-359 (2009)
In order to determine the suitable sampling method for estimating of stem number per ha and percentage of canopy cover in the protective western oak forests of Iran (Zagros), a survey was carried out in Kermanshah province. For this purpose and based
Externí odkaz:
https://doaj.org/article/d1a0f6c4fb64402c80380d76b8e56ef1
Publikováno v:
تحقیقات جنگل و صنوبر ایران, Vol 16, Iss 4, Pp 520-507 (2008)
Although "By Products" is used to refer to those yields (products) that are consisting of Non-Wood forest products (NWFP), it is hoped that the public opinion is not as being valueless rather the meaning of inconsistent with capital investment should
Externí odkaz:
https://doaj.org/article/761132404be54b7d8b7153a3f0f6fe11
Autor:
Mahtab Pir Bavaghar, Hooshang Sobhani, Jahangir Feghhi, Ali Asghar Darvishsefat, Mohammad Reza Marvi- Mohajer
Publikováno v:
تحقیقات جنگل و صنوبر ایران, Vol 15, Iss 4, Pp 385-374 (2007)
Managers of logging operation are faced with profit reduction due to rapid increases in equipment costs, rapid depreciation of equipment and changing logging systems from harvesting the large trees to the smaller ones. The simplest way to confront th
Externí odkaz:
https://doaj.org/article/f47f0410759e4a108f275923dcd7cb56
Publikováno v:
تحقیقات جنگل و صنوبر ایران, Vol 15, Iss 1, Pp 42-32 (2007)
T-square sampling method is one of the distance sampling methods for estimating the plant density and canopy cover. For plant density measurements, three formulas, of Diggle and Byth have been used. In this study, applicability of these formulas rega
Externí odkaz:
https://doaj.org/article/0787ed163bf34abdaef083593b9b3aae
Publikováno v:
تحقیقات جنگل و صنوبر ایران, Vol 14, Iss 1, Pp 19-1 (2006)
Genetic resources are the most valuable national treasure of a country and it is vital to identify, conserve and use them. The Persian walnut (Juglans regia L.) is one of the most valuable genetic resource in Iran due to its multi benefits (nutrition
Externí odkaz:
https://doaj.org/article/0335f501b7f74c33be3e6818aabafaa9