scholarly journals Planning of Forest Road Network in Palm Form Working System (I) : Establishment of Unit Block

10.5109/23872 ◽  
1987 ◽  
Vol 32 (1/2) ◽  
pp. 129-139
Author(s):  
Du-Song Cha ◽  
Morio Imada ◽  
Toshihiro Masutani ◽  
Yuui Sekiya
Keyword(s):  
Road Network ◽  
Forest Road ◽  
Unit Block

Optimales Layout einer Walderschliessung

2016 ◽  
Vol 167 (5) ◽  
pp. 294-301
Author(s):  
Leo Bont
Keyword(s):  
Road Network ◽  
Spatial Arrangement ◽  
Problem Situation ◽  
Optimal Layout ◽  
Forest Road ◽  
The Road ◽  
Network Cost ◽  
User Friendly ◽  
Short Time

Optimal layout of a forest road network The road network is the backbone of forest management. When creating or redesigning a forest road network, one important question is how to shape the layout, this means to fix the spatial arrangement and the dimensioning standard of the roads. We consider two kinds of layout problems. First, new forest road network in an area without any such development yet, and second, redesign of existing road network for actual requirements. For each problem situation, we will present a method that allows to detect automatically the optimal road and harvesting layout. The method aims to identify a road network that concurrently minimizes the harvesting cost, the road network cost (construction and maintenance) and the hauling cost over the entire life cycle. Ecological issues can be considered as well. The method will be presented and discussed with the help of two case studies. The main benefit of the application of optimization tools consists in an objective-based planning, which allows to check and compare different scenarios and objectives within a short time. The responses coming from the case study regions were highly positive: practitioners suggest to make those methods a standard practice and to further develop the prototype to a user-friendly expert software.

scholarly journals Forest road erosion

2012 ◽  
Vol 51 (No. 1) ◽  
pp. 37-46 ◽  
Author(s):  
J. Dobiáš
Keyword(s):  
Road Network ◽  
Mechanical Damage ◽  
Mountainous Areas ◽  
Water Stream ◽  
Forest Road ◽  
The Road ◽  
Water Flows ◽  
Tangential Stresses ◽  
Precipitation Water ◽  
Forest Lands

The forest road network influences surface runoff of uninfiltrated precipitation water on forest lands, mainly in hilly and mountainous areas. This water flows onto the road crown in unpaved forest roads that do not have any ditches. Dragging of extracted logs causes mechanical damage to the crown of unpaved forest road, and tracks after tractor wheels and furrows after dragged logs originate. Flowing water is accumulated in these depressions and the water stream causes erosion. The method for evaluation of conditions for the origination and degree of this erosion damage consists in the calculation of tangential stresses near the bottom at various depths of water and various gradients of road. Limit gradients of road for the origination of greater or smaller damage by erosion for the subsoil grain of various sizes are determined by a comparison of calculated tangential stresses with critical tangential stresses. Rates of discharge were calculated for the particular models of damage.

scholarly journals Design of forest road network in relation to all-society functions of forests

2012 ◽  
Vol 50 (No. 5) ◽  
pp. 243-247
Author(s):  
M. Kašková
Keyword(s):  
Decision Making ◽  
Forest Management ◽  
Road Network ◽  
Road Construction ◽  
Management Development ◽  
Decision Making Process ◽  
Forest Road ◽  
Road Planning ◽  
Forest Road Construction ◽  
Made In

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 catchment of the Vilčok stream. The catchment is situated in Protected Landscape Area Beskydy. The method Quantification and quantitative evaluation of functions of forests as a basis for their evaluation (Vyskot et al. 2003) was used for the design. This method can be applied to road planning. It can serve as another component in the decision-making process of the planning of forest road construction.

scholarly journals The Application of Two Approaches Using GIS Technology Implementation in Forest Road Network Planning in an Italian Mountain Setting

Forests ◽  
2018 ◽  
Vol 9 (5) ◽  
pp. 277 ◽  
Author(s):  
Rodolfo Picchio ◽  
Giuseppe Pignatti ◽  
Enrico Marchi ◽  
Francesco Latterini ◽  
Mirko Benanchi ◽  
...  
Keyword(s):  
Technology Implementation ◽  
Road Network ◽  
Network Planning ◽  
Gis Technology ◽  
Forest Road

The Silvicultural Management System in temperate and boreal forests: A case history of the Hokkaido Tokyo University Forest

1994 ◽  
Vol 24 (6) ◽  
pp. 1176-1185 ◽  
Author(s):  
Sadamoto Watanabe ◽  
Satohiko Sasaki
Keyword(s):  
Management System ◽  
Road Network ◽  
High Density ◽  
Mature Trees ◽  
Individual Tree ◽  
Forest Road ◽  
Selection Cutting ◽  
Clear Cutting ◽  
Silvicultural Management ◽  
Wide Range

Forest managers need new approaches for maintaining high stand volumes while keeping forests continuously productive and economically profitable. The Silvicultural Management System (SMS) accomplishes these objectives by increasing large-sized trees for periodic harvest, and continuously maintaining stand volumes at their highest possible levels. This system takes advantage of the diversity in growth, vigor, and longevity of dominant trees from a wide range of tree species found in natural forest ecosystems. Under the SMS developed at the Tokyo University Forest in Hokkaido, 13–17% of the stand volume is harvested at a cutting cycle of 8–10 years by removing the oldest mature trees. Residual stand volumes are maintained at about 70–80% of the levels found in natural old-growth stands. This removal of the oldest trees keeps the stands in a continuously healthy and productive state. The cutting level is planned to ensure a sufficient harvest to cover the construction costs of a necessary high-density forest road network that provides the great logging efficiency and limited maximum yarding distances. This form of selection cutting has proven to be highly productive, surpassing even the production realized under clear cutting. Well-managed cuttings under SMS improve the quality and quantity of the timber resource, with particular emphasis upon premium-quality hardwoods. Guidelines are given for individual tree selection cutting to produce premium-quality hardwoods, and based upon a high-density forest road network. The value of this high-quality timber makes such low-volume logging operations profitable. The SMS also maintains a favorable forest ecosystem for diverse wildlife and flora, and several endangered or threatened wildlife species that depend upon less dense mature forests occur in SMS forests. Managed forests with high-volume stocking also serve as an effective carbon dioxide sink.

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