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Reanalysis Of The Smc Organon Equations For Diameter Growth Rate Height Growth Rate And Mortality Rate Of Douglas Fir
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Book Synopsis Reanalysis of the SMC-ORGANON Equations for Diameter-growth Rate, Height-growth Rate, and Mortality Rate of Douglas-fir by : David W. Hann
Download or read book Reanalysis of the SMC-ORGANON Equations for Diameter-growth Rate, Height-growth Rate, and Mortality Rate of Douglas-fir written by David W. Hann and published by . This book was released on 2006 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Using existing data from untreated research plots, we developed equations for predicting 5-yr diameter-growth rate (delta D5), 5-yr height-growth rate (delta H5), and 5-yr mortality rate (PM5) for Douglas-fir [Pseudotsuga menziesii (Mirb.) Franco] in the coastal region of the Pacific Northwest. These equations are revisions of the equations constructed in 1995-1997 for the Stand Management Cooperatives (SMC) version of the ORGANON growth-and-yield model, and they have been developed with substantially larger and more comprehensive data sets than were available in 1995-1997. The new delta D5 and delta H5 equations were validated with an independent data set. The PM5 equation was evaluated by comparing 100-yr predictions of Reinekes (1933) stand density index to behavior previously reported from measurements taken on long-term researchplots. The new delta D5, delta H5, and PM5 equations appear to be considerably superior in predictive ability and behavior to the original equations. The effects of the new equations on stand-level predictions were evaluated by comparing the maximum mean annual increments (MAI) in total stem volume (ft3) and associated rotation ages (RA) predicted from the original SMC-ORGANON model to predictions from the revised SMC-ORGANON model. This analysis was done by making 100-yr projections using 170 plots in young stands from the SMC data sets. Some of the ending values for average crown ratio (CR) after 100 yr of projection were near 15%, however, and predictions of basal area (BA) for some of these stands peaked and then declined over stand age. Substituting the HCB equation published by Hann and Hanus in 2004 for predicting crown recession (delta HCB5) eliminated the problem with BA peaking over stand age and resulted in somewhat larger average ending CRs. The 100-yr projections were then made again with the 2004 HCB equation of Hann and Hanus. On average, the revised model reduced RA by 2.1 yr (or 4.3%) and maximum MAI by 55.7 ft3/ac/yr (18.9%).
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 Environmental Modelling by : John Wainwright
Download or read book Environmental Modelling written by John Wainwright and published by John Wiley & Sons. This book was released on 2013-04-01 with total page 493 pages. Available in PDF, EPUB and Kindle. Book excerpt: Simulation models are an established method used to investigate processes and solve practical problems in a wide variety of disciplines. Central to the concept of this second edition is the idea that environmental systems are complex, open systems. The authors present the diversity of approaches to dealing with environmental complexity and then encourage readers to make comparisons between these approaches and between different disciplines. Environmental Modelling: Finding Simplicity in Complexity 2nd edition is divided into four main sections: An overview of methods and approaches to modelling. State of the art for modelling environmental processes Tools used and models for management Current and future developments. The second edition evolves from the first by providing additional emphasis and material for those students wishing to specialize in environmental modelling. This edition: Focuses on simplifying complex environmental systems. Reviews current software, tools and techniques for modelling. Gives practical examples from a wide variety of disciplines, e.g. climatology, ecology, hydrology, geomorphology and engineering. Has an associated website containing colour images, links to WWW resources and chapter support pages, including data sets relating to case studies, exercises and model animations. This book is suitable for final year undergraduates and postgraduates in environmental modelling, environmental science, civil engineering and biology who will already be familiar with the subject and are moving on to specialize in the field. It is also designed to appeal to professionals interested in the environmental sciences, including environmental consultants, government employees, civil engineers, geographers, ecologists, meteorologists, and geochemists.
Book Synopsis Annual Report by : Oregon State University. Swiss Needle Cast Cooperative
Download or read book Annual Report written by Oregon State University. Swiss Needle Cast Cooperative and published by . This book was released on 2007 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Nonlinear Regression Modeling by : David A. Ratkowsky
Download or read book Nonlinear Regression Modeling written by David A. Ratkowsky and published by . This book was released on 1983 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction to regression models; Assessing nonlinearity in nonlinear regression models; Yield-density models; Sigmoidal growth models; Asymptotic regression model; Some miscellaneous models; Comparing parameter estimates from more than one data set; Obtaining good initial parameter estimates; Summary: towatd a unified approach to nonlinear regression modeling.
Book Synopsis Comprehensive Database of Diameter-based Biomass Regressions for North American Tree Species by : Jennifer Caroline Jenkins
Download or read book Comprehensive Database of Diameter-based Biomass Regressions for North American Tree Species written by Jennifer Caroline Jenkins and published by . This book was released on 2004 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: A database consisting of 2,640 equations compiled from the literature for predicting the biomass of trees and tree components from diameter measurements of species found in North America. Bibliographic information, geographic locations, diameter limits, diameter and biomass units, equation forms, statistical errors, and coefficients are provided for each equation, along with examples of how to use the database. The CD-ROM included with the paper version of this publication contains the complete database (Table 3) in spreadsheet format (Microsoft Excel 2002® with Windows XP®). The database files can also be viewed in both spreadsheet and pdf formats by directing your browser to the Global Change page at http://www.fs.fed.us/ne/global/pubs/books/index.html
Book Synopsis Environmental Modelling by : John Wainwright
Download or read book Environmental Modelling written by John Wainwright and published by John Wiley & Sons. This book was released on 2004-01-26 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt: Publisher Description
Book Synopsis Modelling Forest Development by : Klaus von Gadow
Download or read book Modelling Forest Development written by Klaus von Gadow and published by Springer Science & Business Media. This book was released on 2001-11-30 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: The key to successful timber management is a proper understanding of growth processes, and one of the objectives of modelling forest development is to provide the tools that enable foresters to compare alternative silvicultural treatments. In a managed woodland, the most important periodic disturbances are the thinning operations, which are often carried out at regular intervals and which usually have a significant effect on the future evolution of the resource. Thus, a realistic model of forest development includes both natural growth and thinnings. One of the outstanding features of this book is its inclusion of thinning models at varying levels of resolution and consideration of differences in foresters' tree marking behaviour. Other interesting aspects include regional resource forecasting approaches, generalized stem taper functions, generalized diameter-height relations, new ways of describing and reproducing forest spatial structures, crown modelling and iterative competition modelling. Worked examples and code are provided where appropriate. The intended readership is graduate students.
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 2011-07-15 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
Download or read book Yvain written by Chretien de Troyes and published by Yale University Press. This book was released on 1987-09-10 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: A twelfth-century poem by the creator of the Arthurian romance describes the courageous exploits and triumphs of a brave lord who tries to win back his deserted wife's love
Book Synopsis Modelling Forest Systems by : A. Amaro
Download or read book Modelling Forest Systems written by A. Amaro and published by CABI. This book was released on 2003-01-01 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt: There are many theoretical approaches to modelling forest systems, but not all of them have valid practical applications. This book reviews current thinking on various models and presents applications in various contexts. Papers have been selected and developed from those presented at aworkshop held in Portugal in June 2002. Topics covered include: Forest reality and modelling strategies Mathematical approaches and reasoning Estimation processes Models, validation and decision under uncertainty Model archives and metadata
Book Synopsis Cambridge International AS & A Level Further Mathematics Coursebook by : Lee Mckelvey
Download or read book Cambridge International AS & A Level Further Mathematics Coursebook written by Lee Mckelvey and published by Cambridge University Press. This book was released on 2018-08-31 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cambridge International AS & A Level Further Mathematics supports students following the 9231 syllabus. This single coursebook comprehensively covers all four modules of the syllabus and helps support students in their studies and develops their mathematical skills. Authored by experienced teachers of Further Mathematics, the coursebook provides detailed explanations and clear worked examples with practice exercises and exam-style questions. Answers are at the back of the book.
Book Synopsis The Politics of Ecosystem Management by : Hanna Cortner
Download or read book The Politics of Ecosystem Management written by Hanna Cortner and published by Shearwater Books. This book was released on 1999 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Resource management in the United States is undergoing a fundamental change. Traditional sustained-yield approaches that focus on commodity production and human resource use are steadily giving way to ecological approaches, often referred to as ecosystem management, that have long-term ecological sustainability as their primary goal. To achieve that goal, ecosystem management emphasizes socially defined goals and objectives, integrated and holistic science, collaborative decision making, and adaptable institutions. Political considerations are an essential component of ecosystem management, yet its socio-political context has been largely ignored by those studying and writing on the subject.The Politics of Ecosystem Management is the first book to focus entirely on the political challenges facing ecosystem management as it moves from theory to practice.The authors examine: the history of natural resource management in the United States the theory behind ecosystem management potential inconsistencies and contradictions in the themes of ecosystem management political philosophies that undergird traditional resource management alternative political principles inherent in ecosystem management opportunities and barriers for achieving collaborative ecosystem managementThe Politics of Ecosystem Management considers the sweeping and profound changes that will be required of the American governance system -- its political philosophy, institutions, notions of citizenship, and politics, as well its resource management practices -- if the shift to ecosystem management is to be realized. It is a lucid and accessible volume that represents a vital contribution to the literature for students, researchers, and professionals involved with any aspect of developing and implementing ecosystem-based approaches to resource management.
Book Synopsis GIS and Environmental Modeling by : Michael F. Goodchild
Download or read book GIS and Environmental Modeling written by Michael F. Goodchild and published by John Wiley & Sons. This book was released on 1996-09-30 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt: GIS and Environmental Modeling: Progress and Research Issues Michael F. Goodchild, Louis T. Steyaert, Bradley O. Parks, Carol Johnston, David Maidment, Michael Crane, and Sandi Glendinning, Editors With growing pressure on natural resources and landscapes there is an increasing need to predict the consequences of any changes to the environment. Modelling plays an important role in this by helping our understanding of the environment and by forecasting likely impacts. In recent years moves have been made to link models to Geographical Information Systems to provide a means of analysing changes over an area as well as over time. GIS and Environmental Modeling explores the progress made to date in integrating these two software systems. Approaches to the subject are made from theoretical, technical as well as data stand points. The existing capabilities of current systems are described along with important issues of data availability, accuracy and error. Various case studies illustrate this and highlight the common concepts and issues that exist between researchers in different environmental fields. The future needs and prospects for integrating GIS and environmental models are also explored with developments in both data handling and modelling discussed. The book brings together the knowledge and experience of over 100 researchers from academic, commercial and government backgrounds who work in a wide range of disciplines. The themes followed in the text provide a fund of knowledge and guidance for those involved in environmental modelling and GIS. The book is easily accessible for readers with a basic GIS knowledge and the ideas and results of the research are clearly illustrated with both colour and black and white graphics.
Book Synopsis Charles Pettigrew, First Bishop-elect of the North Carolina Episcopal Church by : Bennett H Wall
Download or read book Charles Pettigrew, First Bishop-elect of the North Carolina Episcopal Church written by Bennett H Wall and published by Hassell Street Press. This book was released on 2021-09-10 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Download or read book Understanding CORBA written by Randy Otte and published by Prentice Hall. This book was released on 1996 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: Software -- Software Engineering.
Book Synopsis Growth and Yield of Red Pine in Minnesota by : Robert Erwin Buckman
Download or read book Growth and Yield of Red Pine in Minnesota written by Robert Erwin Buckman and published by . This book was released on 1962 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
