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Nonlinear Models Of Height Growth For Douglas Fir In Southwestern Oregon
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Book Synopsis Forest Growth and Yield Modeling by : Aaron R. Weiskittel
Download or read book Forest Growth and Yield Modeling written by Aaron R. Weiskittel and published by John Wiley & Sons. This book was released on 2011-08-22 with total page 431 pages. Available in PDF, EPUB and Kindle. Book excerpt: Forest Growth and Yield Modeling synthesizes current scientific literature and provides insights in how models are constructed. Giving suggestions for future developments, and outlining keys for successful implementation of models the book provides a thorough and up-to-date, single source reference for students, researchers and practitioners requiring a current digest of research and methods in the field. The book describes current modelling approaches for predicting forest growth and yield and explores the components that comprise the various modelling approaches. It provides the reader with the tools for evaluating and calibrating growth and yield models and outlines the steps necessary for developing a forest growth and yield model. Single source reference providing an evaluation and synthesis of current scientific literature Detailed descriptions of example models Covers statistical techniques used in forest model construction Accessible, reader-friendly style
Book Synopsis A Compendium of Forest Growth and Yield Simulators for the Pacific Coast States by : Martin W. Ritchie
Download or read book A Compendium of Forest Growth and Yield Simulators for the Pacific Coast States written by Martin W. Ritchie and published by . This book was released on 1999 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Nonlinear Equations for Predicting Diameter Inside Bark at Breast Height for Young-growth Red Fir in California and Southern Oregon by : K. Leroy Dolph
Download or read book Nonlinear Equations for Predicting Diameter Inside Bark at Breast Height for Young-growth Red Fir in California and Southern Oregon written by K. Leroy Dolph and published by . This book was released on 1989 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Research Bulletin written by and published by . This book was released on 1991 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Polymorphic Site Index Curves for Red Fir in California and Southern Oregon by : K. Leroy Dolph
Download or read book Polymorphic Site Index Curves for Red Fir in California and Southern Oregon written by K. Leroy Dolph and published by . This book was released on 1991 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dissertation Abstracts International by :
Download or read book Dissertation Abstracts International written by and published by . This book was released on 2003 with total page 768 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Ontario. Ministry of Natural Resources Publisher :Sault Ste. Marie : Ontario Ministry of Natural Resources ISBN 13 : Total Pages :40 pages Book Rating :4.:/5 (319 download)
Book Synopsis Nonlinear Height-diameter Models for Nine Boreal Forest Tree Species in Ontario by : Ontario. Ministry of Natural Resources
Download or read book Nonlinear Height-diameter Models for Nine Boreal Forest Tree Species in Ontario written by Ontario. Ministry of Natural Resources and published by Sault Ste. Marie : Ontario Ministry of Natural Resources. This book was released on 1999 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: The primary objectives of the work described in this report were to: develop nonlinear height-diameter models for nine boreal forest tree species in Ontario; evaluate the relative performance of these models calibrated for a range of site productivity & tree size; and select good model candidates for further validation & volume estimation in this region. In this work, 25 models were developed & fitted based on individual tree height & diameter data collected from permanent sample plots across northern Ontario. Available tree height & diameter data for each of the 9 species were split into two data sets: 90% of the data were used for model development and the rest were reserved for model validation. Comparison of mean square error values and mean coefficients of determination showed whether most sigmoidal & concave-downward equations capture the height-diameter relationships for Ontario tree species.
Book Synopsis Diameter Growth Equations for Douglas-fir and Grand Fir in the Western Willamette Valley of Oregon by : Abdel Azim Zumrawi
Download or read book Diameter Growth Equations for Douglas-fir and Grand Fir in the Western Willamette Valley of Oregon written by Abdel Azim Zumrawi and published by . This book was released on 1993 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Equations for predicting diameter growth are an essential component of single-tree growth and yield models (Munro 1974). Diameter growth predictions are used to characterize individual-tree development and to project the growth of stand basal area and volume. Both diameter growth and basal area growth have been used as the dependent variable in modeling the development of a tree's diameter (Holdaway 1984, Ritchie and Hann 1985, Wykoff 1986, Wensel et al. 1987, Dolph 1988). The choice of which dependent variable to use has usually been suggested by the data, including the behavior of the residuals and the goodness-of-fit of the resulting equations. Ritchie and Hann (1985) developed nonlinear basal-area growth equations for Douglas-fir (Pseudotsuga menziesii) and grand fir (Abies grandis). It was intended that the equations would be used to predict individual- tree diameter growth in the western Willamette Valley version of ORGANON (Hann et al. 1992). However, Hann and Larsen (1991) found that using a basal-area growth equation to predict diameter growth could result in erratic and unreasonable predictions of diameter growth for trees with small diameters. Therefore, the objective of the present study was to develop diameter growth equations for Douglas-fir and grand fir in the western Willamette Valley of Oregon by using the equation form of Hann and Larsen (1991)."--Introduction.
Download or read book Hilgardia written by and published by . This book was released on 1995 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Research Note PSW. written by and published by . This book was released on 1978 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Water and Carbon Dynamics, Ecosystem Stability of Forest and Grassland in Response to Climate Change by : Xiaoming Kang
Download or read book Water and Carbon Dynamics, Ecosystem Stability of Forest and Grassland in Response to Climate Change written by Xiaoming Kang and published by Frontiers Media SA. This book was released on 2024-04-15 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: Forest and grassland ecosystems are the most important carbon sinks in terrestrial ecosystems. They can maintain or enhance carbon stocks and sinks in biomass, and play vital roles in mitigating climate change. China is taking action to achieve its carbon peak and carbon-neutral targets. Climate change, particularly the increase in the frequency, severity, and extent of drought, will affect the stability of the forest and grassland. How forests and grassland mitigate and adapt to climate change is still a challenge. Exploring the response of the forest and grassland to extreme climate events contributes to improving vegetation quality and enhancing the ability to respond to climate change.
Book Synopsis Forestry Theses Accepted by Colleges and Universities in the United States by :
Download or read book Forestry Theses Accepted by Colleges and Universities in the United States written by and published by . This book was released on 1981 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Height-diameter Equations for Six Species in the Coastal Regions of the Pacific Northwest by : Mark L. Hanus
Download or read book Height-diameter Equations for Six Species in the Coastal Regions of the Pacific Northwest written by Mark L. Hanus and published by . This book was released on 1999 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: Three equations for predicting tree height as a function of diameter (outside bark) at breast height are presented for six species found in coastal regions of the Pacific Northwest. Foresters can use these "height-diameter" equations to avoid the time-consuming task of measuring heights of all individual trees in an inventory, a stand exam, or a timber cruise. Equation coefficients were estimated with weighted nonlinear regression techniques. Because the relationship between a tree's height and diameter depends on the tree's competitive position within the stand, alternative equations, including the average height and average diameter of the 40 largest-diameter trees/ac, are also presented. These equations are used in the Stand Management Cooperative version of ORGANON.
Author :Changhui Peng Publisher :Sault Ste. Marie : Ontario Forest Research Institute ISBN 13 : Total Pages :20 pages Book Rating :4.:/5 (319 download)
Book Synopsis Developing Ecoregion-based Height-diameter Models for Jack Pine and Black Spruce in Ontario by : Changhui Peng
Download or read book Developing Ecoregion-based Height-diameter Models for Jack Pine and Black Spruce in Ontario written by Changhui Peng and published by Sault Ste. Marie : Ontario Forest Research Institute. This book was released on 2001 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Asymptotic Height-diameter Equations for Twenty-four Tree Species in Western Oregon by :
Download or read book Asymptotic Height-diameter Equations for Twenty-four Tree Species in Western Oregon written by and published by . This book was released on 1995 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Forestry Theses Accepted by Colleges and Universities in the United States, July 1981-June 1990 by :
Download or read book Forestry Theses Accepted by Colleges and Universities in the United States, July 1981-June 1990 written by and published by . This book was released on 1994 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Research Paper by : Oregon State University. Forest Research Laboratory
Download or read book Research Paper written by Oregon State University. Forest Research Laboratory and published by . This book was released on 1965 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:
