Economically Inoperable Stands Sample Clauses

Economically Inoperable Stands. Table 9 describes the criteria to exclude mature stands that are considered to be uneconomical. Logging History Leading Species Minimum Age (years) Minimum Volume Operability Reduction Class (%) (m3/ha) AC, ACT, AT, EP >60 >140 All 100 PL, PLI >402 >140 All 100 Other conifer >80 >140 All 100 All Species All All C3 100 Table 9: Economically Inoperably Stands - Mature NO Table 10 describes the criteria to exclude immature stands that are expected to be uneconomical to harvest based on site index cut-off values from the TSR III data package. Table 10: Economically Inoperably Stands - Immature Logging Leading Species Minimum Minimum Reduction History Age (years) Site Index (%) AC, ACT, AT, EP <=60 >13.5 100 NO PL, PLI <=402 >8.5 100 Other conifer <=80 >9.2 100 3.11 Stand-Level Retention The TSR IV Data Package prescribes a 11.86% reduction to the THLB for the Prince Xxxxxx Forest District to address stand level retention that includes areas occupied by riparian retention, wildlife tree patch retention, retention for the protection of forest values including archaeological features, site specific habitat features and blue-listed species. This type of aspatial netdown is used in TSR IV to avoid double counting reductions for riparian management and wildlife tree and other requirements that are generally addressed operationally by reserving areas that meet a multitude of these values. The disadvantage of this approach is that these reductions are applied to the entire landbase regardless of whether these values exist in a particular area or not.