Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
The Potential Contribution Of A Diameter Class Matrix Model To Predict Growth Of Mixed Tropical Forests
Download The Potential Contribution Of A Diameter Class Matrix Model To Predict Growth Of Mixed Tropical Forests full books in PDF, epub, and Kindle. Read online The Potential Contribution Of A Diameter Class Matrix Model To Predict Growth Of Mixed Tropical Forests ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis The Potential Contribution of a Diameter Class Matrix Model to Predict Growth of Mixed Tropical Forests by : Richard Ebaa-Atyi
Download or read book The Potential Contribution of a Diameter Class Matrix Model to Predict Growth of Mixed Tropical Forests written by Richard Ebaa-Atyi and published by . This book was released on 1988 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study presents two main parts: first, a review of tropical silviculture and forest management systems and, second, the investigation of a growth and yield model which has some potential for application in the tropical region. The presentation of tropical silviculture includes: (1) an overview of the biological characteristics of the tropical forest, (2) a review of different management techniques and their level of success, (3) a discussion of the economic and institutional contexts, and (4) some important conclusions about different management regimes. The growth and yield model employs a diameter class matrix model which predicts future forest structure using the basal area and diameter class distribution of current stands. The coefficients are developed using inventory data from mixed species hardwood stands of the West Virginia University Forests. The conditions for applications of such a model in the tropical region are discussed.
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 421 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 1957, 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 34 (thesis year 1989) a total of 13,377 theses titles from 26 Canadian and 184 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 34 reports theses submitted in 1989, on occasion, certain univer sities do report theses submitted in previous years but not reported at the time.
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 Individual-tree Diameter Growth Model for Northeastern United States by : Richard M. Teck
Download or read book Individual-tree Diameter Growth Model for Northeastern United States written by Richard M. Teck and published by . This book was released on 1991 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: S2Describes a species-specific, distance-independent individual-tree diameter growth model for the Northeastern United States. Diameter growth is predicted in two steps using a two parameter, sigmoidal growth function modified by a one parameter exponential decay function with species-specific coefficients. Coefficients are presented for 28 species groups. The model accounts for variability in annual diameter growth due to species, tree size, site quality, and the tree's competitive position within the stand. Model performance is evaluated using the mean predicted error and the root mean square error. Results are presented for the calibration data and an independent validation data set. The model has been, incorporated into NE-TWIGS, a computerized forest growth model for the Northeastern United States.S3.
Book Synopsis Prediction of Height Increment for Models of Forest Growth by : Albert R. Stage
Download or read book Prediction of Height Increment for Models of Forest Growth written by Albert R. Stage and published by . This book was released on 1975 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Functional forms of equations were derived for predicting 10-year periodic height increment of forest trees from height, diameter, diameter increment, and habitat type. Crown ratio was considered as an additional variable for prediction, but its contribution was negligible. Coefficients of the function were estimated for 10 species of trees growing in 10 habitat types of northern Idaho and northwestern Montana.
Book Synopsis Modelling Forest Growth and Yield by : J. K. Vanclay
Download or read book Modelling Forest Growth and Yield written by J. K. Vanclay and published by . This book was released on 1994 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Whole stand models. Size class models. Single-tree and tree list models. Data Requirements. Constructing growth models. Forest site evaluation. Diameter increment. Mortality and merchantability. Regeneration and recruitment. Model evaluation and re-calibration. Implementation and use. Future directions.
Book Synopsis Modelling Forest Growth and Yield by : J. K. Vanclay
Download or read book Modelling Forest Growth and Yield written by J. K. Vanclay and published by . This book was released on 1994 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: Whole stand models. Size class models. Single-tree and tree list models. Data Requirements. Constructing growth models. Forest site evaluation. Diameter increment. Mortality and merchantability. Regeneration and recruitment. Model evaluation and re-calibration. Implementation and use. Future directions.
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.
Download or read book O.F.I. Occasional Papers written by and published by . This book was released on 1994 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Developing a Hybrid Growth Model for Multiaged Sierra Nevada Mixed-conifer Forests by : Rolf Friedrich Gersonde
Download or read book Developing a Hybrid Growth Model for Multiaged Sierra Nevada Mixed-conifer Forests written by Rolf Friedrich Gersonde and published by . This book was released on 2003 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: "A growth model was developed for multiaged mixed-conifer forests in the Sierra Nevada of California. The model incorporates process-oriented components that predict tree growth as a function of leaf area and absorbed light, as well as empirical information on site quality. Leaf area prediction equations were developed from sapwood area--leaf area relationships for Pinus ponderosa Laws., Abies concolor Gordon and Glend., Calocedrus decurrens (Torrey) Florin, Pseudotsuga menzieii var. menziesii (Mirb.) Franco, Pinus lambertiana L., and Quercus kelloggii Newb. Inclusion of site index improved model predictions across the range of sites sampled in the Sierra Nevada. Leaf area was used to calibrate a spatially explicit light model to conditions in the Sierra Nevada. The light model was able to predict the variable light environment within complex canopy structures. Moreover, it showed little loss in accuracy when model parameters were simplified for use of the model with inventory data. The model calculates light at any point within the canopy and can estimate mean incident and absorbed light of larger tree crowns. Boundary line analysis showed that the maximum amount of leaf area a tree maintained depended upon the mean light received over the growing season and differed among species. Tree growth efficiency, defined as stem volume increment per unit of leaf area, was correlated with tree size and light environment. Growth efficiency increased with tree height across the range of light intensity levels. Prediction equations were developed for volume increment as a function of projected leaf area and leaf area weighted by absorbed light. These relationships demonstrate the varying importance of shading and self-shading on tree growth in vertically structured stands. Additional models for height, basal area, and crown radial increment were developed to project volume increment and stand structural development over periods of up to 20 years. The whole model was validated with independent permanent sample plot data from two multiaged mixed-conifer stands. It can be used to assess the effects of stand structure upon stand and component yield and structural development. The model is intended to be a tool for managers to design multiaged mixed-species stands of variable structure."--Abstract.
Book Synopsis Growth Modelling for Mixed Tropical Forests by : Denis Alder
Download or read book Growth Modelling for Mixed Tropical Forests written by Denis Alder and published by . This book was released on 1995 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Directed at the analysis of permanent sample plot data from mixed tropical forests to produce growth and yield models. This manual assumes some knowledge of matrix algebra and statistical methods.
Book Synopsis A Programmed Markov Model for Predicting Diameter Distribution and Species Composition in Uneven-aged Forests by : Robert F. Cassell
Download or read book A Programmed Markov Model for Predicting Diameter Distribution and Species Composition in Uneven-aged Forests written by Robert F. Cassell and published by . This book was released on 1974 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Forest Volume Estimation and Yield Prediction by :
Download or read book Forest Volume Estimation and Yield Prediction written by and published by . This book was released on 1980 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt: The problem of growth and yield prediction. Design of yield prediction studies. Procedures for data collection and primary analysis. Data storage systems. Analysis of growth and yield data for uniform forest. Analysis of growth and yield data for mixed forest. Validation of growth and yield models. The application of the model to the required end use.
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
Book Synopsis A Study of Diameter Distributions of an Uneven Aged Tropical Forest by Means of a Transition Matrix Model by : Robert Kenneth Wadsworth
Download or read book A Study of Diameter Distributions of an Uneven Aged Tropical Forest by Means of a Transition Matrix Model written by Robert Kenneth Wadsworth and published by . This book was released on 1977 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Individual Growth and Comparison Among Matrix and Integral Prokection Models with Data from 18 Species of Tropical Trees at Los Tuxtlas, Mexico by : Sebastián Palmas Pérez
Download or read book Individual Growth and Comparison Among Matrix and Integral Prokection Models with Data from 18 Species of Tropical Trees at Los Tuxtlas, Mexico written by Sebastián Palmas Pérez and published by . This book was released on 2013 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt: Development of sustainable management plans require reliable growth models to determine long-term timber yield and analysis of population dynamics. However, growth model estimation is challenged by slow growth rates, low densities and high variability, which result in high parameter uncertainty. Diameter at Breast Height (DBH) measurements from 18 species populations were taken at Los Tuxtlas, Mexico. Two Periodic Annual Increments (PAId) models were statistically tested with nonlinear regression analysis. Using the fitted growth models, Matrix (MPM) and Integral Projection Models (IPM) were compared to determine the difference in the projected outcomes from the models. PAId values ranged from 0.1 for Pimenta dioica to 4.86 in Cordia megalantha. Cordia alliodora, C. megalantha and Cedrela odorata presented the highest growth rates. Populations presented highly variable PAId among sizes. Overall, there is low correlation between DBH and PAId and between DBH and survival probability. The population projection for the IPM returns lower population sizes, probably due to class grouping in MPMs. There is high sensibility to the number of classes and the growth model chosen for matrix models. We suggest that, when dealing with small population samples, using IPM can result in better projections.
Book Synopsis The Ecology of Trees in the Tropical Rain Forest by : I. M. Turner
Download or read book The Ecology of Trees in the Tropical Rain Forest written by I. M. Turner and published by Cambridge University Press. This book was released on 2001-07-05 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt: Our knowledge of the ecology of tropical rain-forest trees is limited, yet a good understanding of the trees is essential to unravelling the workings of the forest itself. This book aims to summarise contemporary understanding of the ecology of tropical rain-forest trees, with particular emphasis on comparative ecology.
