Use of Lidar-Based Digital Terrain Model for Forest Road Planning
International Congress on Engineering and Life Science (ICELIS 2018), Kastamonu, Turkey, 26 - 29 April 2018, pp.343, (Summary Text)
- Publication Type: Conference Paper / Summary Text
- City: Kastamonu
- Country: Turkey
- Page Numbers: pp.343
- Istanbul University Affiliated: Yes
Abstract
Light Detection and Ranging (LiDAR) is a relatively new technology that has brought forestry operation to a new level. This technology could be applied in terrain topography determination; vegetation structure measurement and stand-level attribute prediction. Digital elevation model (DEM) is a 3D representation of terrain’s surface. Serving as a base for measurement, it is an essential component of terrain-related applications. Traditional methods relied on field survey and optical imagery, which were time-consuming and labour-intensive, therefore restrained in forestry operation. LiDAR interpolation approaches was able to provide finer vertical elevation resolution where provincial DEMs were incapable of site level characterization.
In this study, point cloud data and simultaneous aerial images were obtained by using Lidar Sensor (YellowScan Surveyor), which was placed on drone for first time in Turkey. This study tests the accuracy of forest road characteristics mapped using LiDAR in Istanbul University Research and Practice Forest. Comprehensive statistical and visual evaluations were completed for forest roads. The position, gradient, and total length of a simple forest road were accurately extracted using a 0.5 m DEM. In comparison to a field-surveyed centerline, the LiDAR-derived road exhibited a positional situation; the road grade difference and total road length difference of the field-surveyed were investigated for this simple road. Airborne LiDAR can provide thorough and accurate road inventory data to support forest management and watershed assessment activities.