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Proposal of using GIS for multi-criteria evaluation of environmentally friendly use of skidding technologies in forestry
digital terrain model technological typification
2015/5/5
The aim of the study was to propose and verify a model which, based on multi-criteria evaluation of
selected input data, determines the category in terms of the environmentally friendly use of indiv...
Felling and skidding damage to residual trees following selection cutting in Caspian forests of Iran
bole injury logging skidder tree damage uneven-aged stand
2015/4/24
The felling and skidding damage to residual trees was investigated in a selectively cutting operation in the Caspian forest of Iran. The logging operation was performed by chainsaw and cable skidder. ...
Productivity and cost analysis of skidding with Timberjack 450C in forest plantations in Shafaroud watershed, Iran
forest operation wood extraction skidder time study Iran
2015/4/24
We present research results of timber skidding by a Timberjack 450C skidder in the path cutting of pine trees in Shafaroud watershed. Time studies were conducted to quantify the productivity and perat...
A comparative analysis of neck muscle tension in a harvester operator compared with chainsaw and horse skidding operator and with normal human activities
biometric data fatigue harvester equipment stress
2015/4/24
The goal of the experiment was to assess the physical stress experienced by an operator during the use of harvester equipment. Experimental data was obtained from field measurements with a Biofeedback...
Determination of correction coefficient of average skidding distance according to the existing road network in Alikia Soltan forest of Iran
theoretical average skidding distance real average skidding distance skid trails
2015/4/24
One of the factors in planning forest roads is average skidding distance which is calculated in projects from the map, according to forest road density, however it has a low accuracy. In this study re...
Productivity and cost of farm tractor skidding
skidding operation continuous time study regression model forest system efficiency Iranian forest
2015/4/14
In this study, productivity rate and operation cost of farm tractor were evaluated in a mountainous natural forest. Data for the study came from a detailed time study in the Research and Educational F...
Evaluation of full tree skidding by HSM-904 skidder in patch cutting of aspen plantation in Northern Iran
time consumption HSM-904 skidder skidding cost
2015/4/14
This paper presents research results of the performance of HSM-904 grapple skidder using a full tree harvesting method in a non-native aspen Populus deltoides plantation in even terrain conditions in ...
Calculating the correction factor of skidding distance based on forest road network
real skidding distance theoretical skidding distance correction factor Chafrood forest
2015/3/27
Average skidding distance for forest stands is an important parameter for the determination of the optimum road density and spacing. In this research the real mean skidding distance and theoretical me...
Time study and skidding capacity of the wheeled skidder Timberjack 450C in Caspian forests
wheeled skidder Timberjack 450C working efficiency init cost skidding
2015/3/12
This study was carried out in a steep and difficult terrain. Trees were logged downhill to the landing by a wheeled skidder Timberjack 450C. Selection cutting was performed on a 66-hectare tract with ...
Soil compaction in timber skidding in winter conditions
soil compaction multipass skid trail timber skidding water-air soil characteristics
2009/2/7
The research of soil compaction in timber skidding was carried out on two skid trails of uniform slope –15%and 30 %. The degree of soil compaction is shown by changes of water-air soil characteristi...
Planning and Assessment of Alternative Forest Road and Skidding Networks
forest road density road network analysis linear programming road constructioncost skidding cost Iranian forests
2009/2/7
Road construction and harvesting operation have always been the two most expensive activities in forestry. The aim of this paper is to define a method to evaluate the forest road network variants. F...