The Forest Engineering Research Institute of Canada (FERIC) carried out a short-term study of the Bräcke Planter mounted on an excavator. The study took place near Kamloops, B.C. on a small cutblock with slopes ranging from 0 to 35%. This report describes the planter, and its productivity and suitability for use in western Canada.
FPInnovations partnered with Canfor Vanderhoof and Doug Brophy Contracting Ltd. to install a high-density lodgepole pine direct seeding trial in the spring and fall of 2014. Two blocks were seeded at rates of 20 000 and 40 000 seeds/ha using the Bracke s35.a seeder mounted on a disc trencher. At the end of the 2015 growing season, total stocking was 6 630 and 5 170 st/ha respectively, of which 46% and 57% came from direct seeding. Further natural ingress and delayed germination are expected to increase stocking to target levels.
In 1994, FERIC evaluated the performance of feller-bunchers, grapple skidders, roadside delimbers and slashers operating in overmature aspen stands in Central Alberta. The study aimed at providing the forest industry with information for projecting productivities and costs of harvesting overmature aspen stands. FERIC measured machine productivity in aspen stands of different characteristics, and fibre losses from excessive butt rot, upper stem defects, and conversion of tree-length stems into 2.6-m logs. The field data provided the input for determining operating cost and projected machine productivity as functions of tree size or skidding distance. This report also discusses the impact on cost of harvesting decaying stands.
In 1992 the Forest Engineering Research Institute of Canada (FERIC) studied a heavy-lift helicopter logging operation on the Queen Charlotte Islands in British Columbia. The study was part of a Fish-Forestry Interaction Program project to investigate the feasibility of using alternative harvesting and silvicultural systems to harvest timber from potentially unstable terrain. The study provided information on the productivities and costs of helicopter logging in clearcuts, patch cuts, and single-tree selection cuts, using a Sikorsky S-64 Skycrane equipped for choker logging. Information on basal area removal levels, damage to residual stems, and ground disturbance was also collected. Production and cost functions were derived from detailed-timing and shift-level data to predict helicopter yarding productivity and cost by harvesting treatment for yarding distances of 100 to 1 500 m.
The Forest Engineering Research Institute of Canada (FERIC) performed a short-term study of a Schaeff HS40D walking excavator working near Grand Forks, B.C. FERIC monitored the machine working on a steep slope to determine its productivity and cost.
The Silviculture Treatments for Ecosystem Management in the Sayward (STEMS) research project was developed to test seven silvicultural systems and the concepts of ecosystem management as a means of creating diversity in forest structures. The Forest Engineering Research Institute of Canada (FERIC) reported on the harvesting phase of the first replicate of this project. This report summarizes the harvesting productivities, costs, tree damage, and soil disturbance for each of the treatments.