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<br />O.02~J9 <br /> <br />Maximum PNV Based On Established Market Values Benchmark (219.12(e)(1)(iii)(A) <br />(FEIS Benchmark Nos. 2) <br />(FORPLAN Run No.4) <br /> <br />Purpose: This benchmark estimates the maximum PNV that might be attained by <br />valuing market outputs under a non-declining flow policy. Its primary purpose <br />is to serve as a basis for a comparison between benchmarks and alternatives, as <br />well as a basis for determining the effects of various constraints on outputs <br />and costs. <br /> <br />FORPLAN Objective function: Maximize PNV for fifteen decades. <br />Constraints: <br /> <br />-All minimum management requirements (MMR'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 />I <br /> <br />-Timber harvest can equal but not exceed the long-term sustained yield <br />capacity (LTSY). <br /> <br />-Timber harvest levels can increase from decade to decade but not decline. <br /> <br />-Sufficient timber inventory must remain at the end of the modeling horizon <br />to sustain timber harvest ~t the LTSY level. <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 />~nificant features and results: The PNV over the 150-year modeling period is <br />245.469 million dollars. There are 854,191 acres identified as suitable for <br />timber production, with a long term sustained yield level of 23.606 MMCF <br />(106.2MMBF) per year. During the first and second decade, the annual offer <br />level is 8.402 MMCF (31.8 MMBF). In the third decade, the offer level <br />increases to 12.680 MMCF (51.0 MMBF) per year. In the fifteenth decade the <br />offer volume increases to long run sustained yield. Some aspen is commercially <br />harvested in the second decade. <br /> <br />Table c-6 displays the resource output levels and budget requirements of this <br />benchmark. <br /> <br />42 <br />