Unsalvaged Losses. Table 29 shows the estimate of average annual unsalvaged volume loss to epidemics caused by insects or diseases, fires, wind damage or other agents on the timber harvesting land base. The unsalvaged loss column reflects only areas where the volume is not expected to be recovered or salvaged. These unsalvaged loss estimates were taken directly from the TSR4 information package and exclude MPB losses.
Unsalvaged Losses. Cause of Loss Total Loss Annual Unsalvaged Loss (m³ for the 2003-2007 period) (m³/yr) Blowdown 0 0 Spruce Bark Beetle 25,929 5,186 Balsam Bark Beetle 51,736 10,347 Spruce Budworm 1,587 317 Fire 51,292 7,418 Total 130,544 23,268 Existing and future losses associated with the mountain pine beetle have been accounted for in adjustments to yield curves.
Unsalvaged Losses. Table 32 shows the estimate of average annual unsalvaged volume loss to epidemics caused by insects or diseases, fires, wind damage or other agents on the timber harvesting land base. The unsalvaged loss column reflects only areas where the volume is not expected to be recovered or salvaged. These unsalvaged loss estimates were taken directly from the TSR4 information package and exclude MPB losses. Table 32. Unsalvaged Losses Cause of Loss Total Loss (m³ for the 2003-2007 period) Annual Unsalvaged Loss (m³/yr) Blowdown 15,000 8,000 Spruce Bark Beetle 777 777 Xxxxxx Xxxx Xxxxxx 45,628 45,628 Fire 24,500 11,000 Total 85,905 65,405 Existing and future losses associated with the mountain pine beetle have been accounted for in adjustments to yield curves.
Unsalvaged Losses. This section provides an estimate of average annual unsalvaged volume loss (non- recoverable losses) due to insects, disease, fires, wind or other forces of nature over the long term on the timber harvesting land base. The unsalvaged loss column reflects only volumes that will not be recovered or salvaged. Table 32: Unsalvaged losses Cause of Loss Timber Harvesting Land Base Losses (mt/year) Annual Salvage of Losses (mt/year) Annual Unsalvaged Losses (mt/year) Insects 78,000 75,000 3,000 Fire 17,300 7,400 9,900 Wind 57,000 52,000 5,000 Total 152,300 134,400 17,900 Data source and comments: • Insect losses were calculated by forest district staff using information from the Pest Tracking System, Forest Health Notes, data collected for previous timber supply analyses, and from forest health information from forest district records. It should be noted that these estimates were generated in the early stages of current Mountain Pine Beetle epidemic and therefore likely underestimates the current losses to insects; • Fire losses are from the Fire Information Reporting System - 20-year average (1977-1996) for the Vanderhoof Forest District; and • Wind losses were provided by the forest district staff based on forest health information.
Unsalvaged Losses. Expected unsalvaged losses are summarized in Table 10.1. These are based on the Okanagan TSA figures. In the timber supply analysis, this volume was added to the annual harvest target to reflect total volume depletion.
