At the end of 1991, a jointly conducted study was done to identify the main wood harvesting systems used, the environmental concerns that related to harvesting, the extent of current .knowledge on the environmental impacts of these systems, and areas of inadequate information.
Most often UAV data is acquired to have a single overview of the area of interest through stitching of several images that are corrected for the terrain/topographic effects called ortho-mosaicking. This requires post-processing of the data using specialized software. Terrain is estimated from 3D point clouds generated through photogrammetric procedures (image matching) on the overlapping images. There are multiple challenges associated with processing of imagery acquired using a UAV for generating an orthomosaic.
Le rapport présente une revue de semoirs et autres dispositifs d'ensemencement utilisés en reboiesement, tout particulièrement pour l'ensemencement d'essences résineuses en forêt boréale. Il décrit les composantes fonctionnelles des systèmes d'ensemencement direct ainsi que les mécanismes des semoirs, et donne des détails sur l'équipement le plus couramment utilisé au Canada.
The current infestation of mountain pine beetle (Dendroctonus ponderosae) is having a signigicant effect on the lodgepole pine forests of interior British Columbia. Some of the infested stands will regenerate naturally over time as part of a natural disturbance pattern with fires and stand succession, but other stands will need assistance to restore them before regeneration is established. The Forest Engineering Research Institute of Canada (FERIC) conducted a literature review examining regeneration issues in lodgepole pine stands killed by mountain pine beetle. The literature review also included regeneration following other large-scale natural disturbances such as wildfire, since the treatments may be applicable to beetle-killed stands.