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<br />0029J5 <br /> <br />. .. <br /> <br />Maximum PNV Including Assigned Values - <br /> <br />No NDY -Benchmark (219.12(e)(1)(iii)(B) <br />(FEIS Departure Benchmark, page 11-13) <br />(FORPLAN Run No.3) <br /> <br />Purpose: This Benchmark is used to see if departure from non-declining flow <br />will better meet multiple-use objectives, given the advanced age of many <br />vegetation types on this Forest. It also determines the effect of <br />non-declining flow on PNV and timber outputs. It includes the basic provisions <br />necessary to comply with current legal requirements and policy guidelines. <br /> <br />FORPLAN Objective function: Maximize PNV for fifteen decades. <br /> <br />Constraints: <br /> <br />-All minimum management requirements (MMR I s) for soil, water, fish. and <br />wildlife must be met. <br /> <br />-Timber harvest is scheduled only on lands classified as tentatively <br />suitable for timber production. <br /> <br />-Regeneration cuts cannot be scheduled until stands have reached 95~ of <br />culmination of mean annual increment. <br /> <br />-Regeneration harvests are dispersed to meet Regional guidelines for size <br />and separation of harvest units. <br /> <br />Si nificant features and results: The PNV over the 150-year modeling period is <br />2.3 5 billion dollars. There are 822,832 acres identified as suitable for <br />timber production, with a long term sustained yield level of 22.219 MMCF (100.0 <br />HMBF) per year. <br /> <br />Since this benchmark does not contain non-declining flow constraints the annual <br />volumes harvested fluctuate widely by decade, ranging from a high of 21.617 <br />,MMCF (97 HMBF) in decade 3 to a low of 6.923 MMCF (31 MMBF) in decade 4. <br /> <br />Some Aspen is commercially harvested in the first decade. <br /> <br />Table C-5 displays the resource output levels and budget requirements of this <br />benchmark. <br /> <br />38 <br />