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An Evaluation Of An Inventory Projection System
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Book Synopsis An Evaluation of an Inventory Projection System by : John R. Mills
Download or read book An Evaluation of an Inventory Projection System written by John R. Mills and published by . This book was released on 1987 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: As part of the effort to evaluate TRIM (Timber Resource Inventory Model) for the next RPA National Assessment, a study was conducted using natural pine stands in North Carolina. TRIM has been used for regional timber supply studies in both the Pacific Northwest and the South (Southern Timber Supply Study). The model results are tools used for economic planning and policy making for regions in which timber is part of the economic base. TRIM uses yield tables arrayed by age class in the inventory projection calculations. The application of yield tables in TRIM can potentially alter the results of regional timber supply analysis. The objective of this study, is to investigate the TRIM growth mechanism and examine the effects of empirically derived yields on TRIM projections. In this process, different levels of data aggregation were compared and two other types of yield tables were developed and evaluated. Model projections were based on growth and inventory estimates derived from two successive Forest Inventory and Analysis (FIA) inventories. Simulation runs took into account "approach to normality", acreage shifts, and timber removals over the range of age classes as described by field measurements. Results were evaluated based on their comparison to FIA field measurements. In most simulations, TRIM growth and inventory projections were substantially below the growth and inventory values calculated from the Flit data. The projections varied with the yield tables used, but higher yields produced the most favorable results. For a North Carolina timber supply study, these results would indicate a sharp decline in the supply of natural pine which is the opposite of what was recorded in the field. This study suggests that empirical yield curves do not represent aggregate stand growth when stands have the characteristics found in North Carolina's natural pine.
Download or read book General Technical Report NC. written by and published by . This book was released on 1981 with total page 586 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Forest Growth Modelling and Prediction by :
Download or read book Forest Growth Modelling and Prediction written by and published by . This book was released on 1988 with total page 590 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fresh ideas, perspectives, and protocols associated with forest inventory and analysis surveys by :
Download or read book Fresh ideas, perspectives, and protocols associated with forest inventory and analysis surveys written by and published by . This book was released on 2003 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis TRIM Timber Projections by : John R. Mills
Download or read book TRIM Timber Projections written by John R. Mills and published by . This book was released on 1989 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Research Paper PNW. written by and published by . This book was released on 1978 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Generalized Forest Growth Projection System Applied to the Lake States Region by : North Central Forest Experiment Station (Saint Paul, Minn.)
Download or read book A Generalized Forest Growth Projection System Applied to the Lake States Region written by North Central Forest Experiment Station (Saint Paul, Minn.) and published by . This book was released on 1979 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Masters Theses in the Pure and Applied Sciences by : Wade H. Shafer
Download or read book Masters Theses in the Pure and Applied Sciences written by Wade H. Shafer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 411 pages. Available in PDF, EPUB and Kindle. Book excerpt: Masters Theses in the Pure and Applied Sciences was first conceived, published, and disseminated by the Center for Information and Numerical Data Analysis and Synthesis (CINDAS) * at Purdue University in 1 957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dissemination phases of the activity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all con cerned if the printing and distribution of the volumes were handled by an interna tional publishing house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Cor poration of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 32 (thesis year 1987) a total of 12,483 theses titles from 22 Canadian and 176 United States universities. We are sure that this broader base for these titles reported will greatly enhance the value of this important annual reference work. While Volume 32 reports theses submitted in 1987, on occasion, certain univer sities do report theses submitted in previous years but not reported at the time.
Download or read book General Technical Report SRS written by and published by . This book was released on 2003 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis General Technical Report PNW-GTR by :
Download or read book General Technical Report PNW-GTR written by and published by . This book was released on 2002 with total page 1074 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Comprehensive Regional Resource Assessments and Multipurpose Uses of Forest Inventory and Analysis Data, 1976 to 2001 by : Victor A. Rudis
Download or read book Comprehensive Regional Resource Assessments and Multipurpose Uses of Forest Inventory and Analysis Data, 1976 to 2001 written by Victor A. Rudis and published by . This book was released on 2003 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Forest Economics Research at the Pacific Northwest Research Station to 2000 by : Donald F. Flora
Download or read book Forest Economics Research at the Pacific Northwest Research Station to 2000 written by Donald F. Flora and published by . This book was released on 2003 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: The contributions for over 80 years by scientists at the Pacific Northwest Research Station to developments in economic theory, economic tools, policies, and economic issues are summarized. This is a story of progressive accomplishments set against a constantly changing background of economic and social events.
Download or read book Sport Fishing written by and published by . This book was released on 1988 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Evaluation of the STEMS Tree Growth Projection System by : Margaret R. Holdaway
Download or read book An Evaluation of the STEMS Tree Growth Projection System written by Margaret R. Holdaway and published by . This book was released on 1983 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book General Technical Report INT written by and published by . This book was released on 1985 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Pacific Southwest Forest and Range Experiment Station (Berkeley, Calif.) Publisher : ISBN 13 : Total Pages :524 pages Book Rating :4.3/5 (91 download)
Book Synopsis USDA Forest Service General Technical Report PSW. by : Pacific Southwest Forest and Range Experiment Station (Berkeley, Calif.)
Download or read book USDA Forest Service General Technical Report PSW. written by Pacific Southwest Forest and Range Experiment Station (Berkeley, Calif.) and published by . This book was released on 1978 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis USDA Forest Service General Technical Report NC. by :
Download or read book USDA Forest Service General Technical Report NC. written by and published by . This book was released on 1980 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt:
