Study of maintenance cost of forest road network as the infrastructure of long-term forestry management

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K18709
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Forest science
• Research Institution: Shinshu University
• Principal Investigator: Saito Masashi 信州大学, 学術研究院農学系, 助教 (60637130)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 森林内路網 / 林道 / 維持管理 / 路体強度 / 横断排水溝 / DTM

Outline of Final Research Achievements

This study analyzed the factors in the maintenance cost of forest road network. In order to enable analysis in a wide area, we developed a method to automatically extract forest roads and a method to extract terrain with high risk of collapse from DTM. We analyzed the influence given to the passage possibility by the blocking of the road and investigated the effect of reinforcement and new establishment. In order to analyze the relationship between the maintenance cost of the operation road and the construction method, compaction test plots were set up and comparisons were made before and after the harvesting operation to calculate the maintenance cost. We examined maintenance intervals of crossed drainage. Regarding the estimation of maintenance costs, we analyzed the relationship between the restoration cost of the forest road and the surrounding topography. As a result, there was a positive correlation with the topography suggesting that it is affected by the surrounding topography.

Free Research Field

森林工学