Download or read book SouthPro written by and published by . This book was released on 1998 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Growth Model for Uneven aged Loblolly Pine Stands written by Ching-Rong Lin and published by . This book was released on 1998 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: A density-dependent matrix growth model of uneven-aged loblolly pine stands was developed with data from 991 permanent plots in the southern United States. The model predicts the number of pine, soft hardwood, and hard hardwood trees in 13 diameter classes, based on equations for ingrowth, upgrowth, and mortality. Projections of 6 to 10 years agreed with the growth of stands between the last two inventories. In 300-year simulations of undisturbed growth, softwood species were replaced by hardwoods, in accord with previous knowledge. Soft hardwood species became dominant on good sites and hard hardwoods on poor sites. Basal area oscillated over time, converging slowly towards a steady state. Changes in tree size diversity were correlated positively with basal area. Without disturbance, species diversity would decrease. For economic analysis, equations were developed to predict total tree height, sawlog length and volume, pulpwood volume, and volume of top sawtimber, as functions of tree diameter and stand basal area. Simulations of three cutting regimes showed that management would lead to a steady state faster than would natural growth. Management aimed at maintaining the current average distribution would result in size and species diversity similar to that of an unmanaged stand. From a financial point of view, the q-factor guide and a 13-in.- (330-mm-) diameter-limit cut would be superior to the average current management regime. The diameter-limit regime would have the greatest effect on lowering tree size diversity and an effect on species diversity similar to that of the q-factor guide. A computer program, SOUTHPRO, was developed to simulate the effects of other management alternatives.
Download or read book A Growth Model for Uneven aged Loblolly Pine Stands written by Ching-Rong Lin and published by . This book was released on 1995 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Modeling Forest Trees and Stands written by Harold E. Burkhart and published by Springer Science & Business Media. This book was released on 2012-04-27 with total page 463 pages. Available in PDF, EPUB and Kindle. Book excerpt: Drawing upon a wealth of past research and results, this book provides a comprehensive summary of state-of-the-art methods for empirical modeling of forest trees and stands. It opens by describing methods for quantifying individual trees, progresses to a thorough coverage of whole-stand, size-class and individual-tree approaches for modeling forest stand dynamics, growth and yield, moves on to methods for incorporating response to silvicultural treatments and wood quality characteristics in forest growth and yield models, and concludes with a discussion on evaluating and implementing growth and yield models. Ideal for use in graduate-level forestry courses, this book also provides ready access to a plethora of reference material for researchers working in growth and yield modeling.
Download or read book Uneven aged Silviculture for the Loblolly and Shortleaf Pine Forest Cover Types written by James B. Baker and published by . This book was released on 1996 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: A half-century of experience and research with uneven-aged silviculture in loblolly-shortleaf pine stands in the South are summarized in this publication, and silvicultural guidelines for developing and managing uneven-aged stands are provided.
Download or read book WestPro a Computer Program for Simulating Uneven aged Douglas fir Stand Growth and Yield in the Pacific Northwest written by and published by . This book was released on 2003 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: WestPro is an add-in program designed to work with Microsoft Excel to simulate the growth of uneven-aged Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) stands in the Pacific Northwest region of the United States. Given the initial stand state, defined as the number of softwood and hardwood trees per acre by diameter class, WestPro predicts the future stand state for each year of a predetermined time horizon. Management regimes are defined by a target stand distribution and a cutting cycle. Performance indicators include diversity of tree size and species, timber yield, and net present value of harvest over the given horizon. This paper contains background information on the WestPro program and instructions and suggestions for its application. By working the examples found in the text, the user will learn how to simulate the growth of a given initial stand and to predict how different management regimes may affect stand structure, yield, and diversity. Limitations of the model also are discussed.
Download or read book Seasonal and Cumulative Loblolly Pine Development Under Two Stand Density and Fertility Levels Through Four Growing Seasons written by James D. Haywood and published by . This book was released on 1994 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 General Technical Report Southern Research Station written by and published by . This book was released on 1995 with total page 632 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Growth and Yield of Uneven aged Shortleaf Pine Stands in the Interior Highlands written by Paul A. Murphy and published by . This book was released on 1985 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the Ninth Biennial Southern Silvicultural Research Conference written by Thomas A. Waldrop and published by . This book was released on 1998 with total page 644 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Growth and Yield Estimation for Loblolly Pine in the West Gulf written by Paul A. Murphy and published by . This book was released on 1979 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings for the Eight Biennial Southern Silvicultural Research Conference written by M. Boya Edwards and published by DIANE Publishing. This book was released on 2001 with total page 643 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents the research of 189 investigators studying the patterns & process of managed southern forests through 104 reported studies. These contributions emanate from scientists located at various universities, forestry industries, & public agencies. The conference began with a general session by 5 presenters on Silviculture -- A Pivotal Role in a Changing Profession.Ó The following papers were divided into specific topics: ecosystem management; vegetation management; pest management/natural disturbance; biometrics/economics; site productivity; site impacts; ecophysiology/genetics; regeneration; silvicultural systems; & stand development/intermediate management.
Download or read book Forest Measurements written by Thomas Eugene Avery and published by Waveland Press. This book was released on 2015-05-18 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt: Continuing a tradition of excellence spanning over forty years, the Fifth Edition of Forest Measurements supplies forestry students at all levels with the concepts and methods they need for future success. The authors present timber measurement techniques applicable to any tree inventory regardless of management objectives. Assuming only some background in algebra and plane trigonometry, basic statistical concepts are included, ensuring that even introductory students benefit from the book’s concise explanations. Thorough coverage of sampling designs, land measurements, tree measurements, forest inventory field methods, and growth projections ensures utility for foresters throughout their education and beyond. Chapters on aerial photographs and GIS introduce readers to these powerful measurement tools, and the concluding chapter expands the techniques discussed to encompass other natural resources such as rangelands, wildlife, and water. Exceptionally readable and clear, the book includes many photographs and illustrations, numerous numerical examples, and a bibliography to enhance the reader’s understanding of the material.
Download or read book General Technical Report SO written by and published by . This book was released on 1977 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Loblolly Pine written by Robert P. Schultz and published by U.S. Government Printing Office. This book was released on 1997 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the Southern Forest Economics Workshop on Evaluating Even and All aged Timber Management Options for Southern Forest Lands written by and published by . This book was released on 1990 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
