搜索结果: 1-12 共查到“森林经理学 forest road”相关记录12条 . 查询时间(0.143 秒)
Calculating the correction factor of skidding distance based on forest road network
real skidding distance theoretical skidding distance correction factor Chafrood forest
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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...
A GIS-MCE based model for forest road planning
analytic hierarchy process forest road GIS
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2015/3/16
One of the cost factors in forest management is the development of road infrastructure. The objective of study was to develop a method using GIS and Multi-criteria Evaluation (MCE) to design a forest ...
Design of forest road network in relation to all-society functions of forests
forest road network all-society functions of forests total real potential and effect design of forest road
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2015/2/2
The basic condition of forest management development is the accessibility of the forest. A design of the forest road network in relation to all-society functions of forests has been made in the catchm...
Analysis of an existing forest road network
forest roads forest road network accessibility skidding distance skidding costs wood transport
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2009/2/7
resources needed to plan these improvements, it is important to target these efforts based upon the available information. Previous research based on existing forest compartment and road network dat...
Maintenance of forest road network by natural forest management in Tokyo University Forest in Hokkaido
forest road standard maintenance natural forest management selection cutting truck transport
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2009/2/7
Forest road network in the Tokyo University Forest in Hokkaido plays an important role in selling low price trees, and has a key role in intensive forest management. Forest road network also contrib...
Tabu search optimization of forest road alignments combined with shortest paths and cubic splines
forest road alignment Tabu Search cubic spline curve Dijkstra method solution quality
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2009/2/7
This paper describes a program for optimizing forest road alignments using the Dijkstra shortest path method and a cubic spline function.We previously developed a method for optimizing forest road ali...
Estimation of carrying capacity of slag and gravel forest road pavements
forest road soil basement road carrying capacity pavement deflection gravel pavement slag pavement
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2009/2/7
The objective of the study was to estimate the carrying capacity of forest roads with slag and gravel pavements. Deformation module and elastic deflection were used as characteristic parameters of r...
Forest road network in the Republic of Croatia – Status and perspectives
forest roads planning design construction maintenance costs Croatia
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2009/2/7
Forest traffic infrastructure is one of the basic preconditions for good quality forest ecosystem management. Since 1991, when the Republic of Croatia gained independence and the company Hrvatske &#...
Optimization of an existing forest road network using Network 2000
road spacing optimal road density skidder model of network analysis Iran
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2009/2/7
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 an...
Planning and Assessment of Alternative Forest Road and Skidding Networks
forest road density road network analysis linear programming road constructioncost skidding cost Iranian forests
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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...
Filling in the Clearance of a Forest Road Cross-Section in Beech Forest
forest road clearance of a forest road cross-section filling in forest road maintenance
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2009/2/7
This paper deals with the required width of forest road formation. Forest roads are necessary for emergency forest management. Besides positive effects, forest roads also bring negative effects. One...
The Use of Geographical Information Systems in Selecting Forest Road Routes
Forest roads Geographical Information Systems (GIS) forest transport road routes database
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2009/1/14
During the forest road planning process, the determination of road routes requires the evaluation of many factors. The data needed for forest road planning are obtained from different sources with di...