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Modeling The Probability Of Individual Tree Mortality Classic Reprint
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Book Synopsis Modeling the Probability of Individual Tree Mortality (Classic Reprint) by : David Alexander Hamilton Jr.
Download or read book Modeling the Probability of Individual Tree Mortality (Classic Reprint) written by David Alexander Hamilton Jr. and published by Forgotten Books. This book was released on 2018-09-10 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Modeling the Probability of Individual Tree Mortality The mortality model can be used to help schedule management activities. Stands of trees for which the model predicts high mortality rates should be considered high risk stands susceptible to insect and disease outbreaks and should be logged, salvaged, or otherwise treated before stands composed of trees with low predicted mortality rates. Mortality models also reveal relationships that may provide a better understanding of how and why mortality occurs in a stand. This information is valuable in management planning and in developing strategies to control mortality. The models discussed in this paper were developed by means of a three - step analy sis. The first step is to screen the independent variables for those that show the strongest relationships to the probability of mortality. The variables selected as most significant by the screening algorithm are used as predictors of the probability of mortality in a logistic model. The regression coefficients for this model are then estimated by a nonlinear regression program, risk (hamilton The final step, model verification, employs a chi-square statistic to evaluate the accuracy with which the proposed model predicts the mortality that occurred on an independent data set. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Book Synopsis Modeling the Probability of Individual Tree Mortality by : David A. Hamilton
Download or read book Modeling the Probability of Individual Tree Mortality written by David A. Hamilton and published by . This book was released on 1976 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Modeling the Probability of Individual Tree Mortality by :
Download or read book Modeling the Probability of Individual Tree Mortality written by and published by . This book was released on 1976 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Modeling the Probability of Individual Tree Mortality by : David Alexander Hamilton
Download or read book Modeling the Probability of Individual Tree Mortality written by David Alexander Hamilton and published by . This book was released on 1976 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Modeling the Probability of Individual Tree Mortality by : D.A. Jr Hamilton
Download or read book Modeling the Probability of Individual Tree Mortality written by D.A. Jr Hamilton and published by . This book was released on 1976 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Individual-tree Probability of Survival Model for the Northeastern United States by : Richard M. Teck
Download or read book Individual-tree Probability of Survival Model for the Northeastern United States written by Richard M. Teck and published by . This book was released on 1990 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: Describes a distance-independent individual-tree probability of survival model for the Northeastern United States. Survival is predicted using a six-parameter logistic function with species-specific coefficients. Coefficients are presented for 28 species groups. The model accounts for variability in annual survival due to species, tree size, site quality, and the tree's competitive position within the stand. Model performance is evaluated using the chi-square goodness-of-fit test. Results are presented for the calibration data and an independent validation data set. The model has been incorporated into NE-TWIGS.
Book Synopsis A Structural Based Prediction System for Modelling Tree Mortality by : Clara Antón Fernández
Download or read book A Structural Based Prediction System for Modelling Tree Mortality written by Clara Antón Fernández and published by . This book was released on 2006 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Predicting the Probability of Individual Tree Mortality for Seven Major Commercial Species in South/central Idaho by : Jessica Mae Josephs
Download or read book Predicting the Probability of Individual Tree Mortality for Seven Major Commercial Species in South/central Idaho written by Jessica Mae Josephs and published by . This book was released on 1984 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Predicting Individual Tree Mortality Using Crown and Damage Characteristics by : Joseph A. Donnegan
Download or read book Predicting Individual Tree Mortality Using Crown and Damage Characteristics written by Joseph A. Donnegan and published by . This book was released on 200? with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Individual Tree Mortality Models for the North Coast Region of California by : Bruce Krumland
Download or read book Individual Tree Mortality Models for the North Coast Region of California written by Bruce Krumland and published by . This book was released on 1977* with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Towards Greater Accuracy in Individual-tree Mortality Regression by : Clara Antón Fernández
Download or read book Towards Greater Accuracy in Individual-tree Mortality Regression written by Clara Antón Fernández and published by . This book was released on 2008 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Continuous Cover Forestry by : Klaus von Gadow
Download or read book Continuous Cover Forestry written by Klaus von Gadow and published by Springer Science & Business Media. This book was released on 2002-06-30 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: The large-scale application of new silvicultural systems has become a political reality in many parts of the world. This involves a gradual tarnsformation of traditional silvicultural practice towards Continuous Cover Forestry (CCF), also know as near-natural forest management, favouring mixed uneven-aged stands, site-adapted tree species and selective harvesting. Today, CCF systems are encountered in many parts of the world, but forest managers often lack the technical support for generating and evaluating treatment options for complex forest structures. Specific CCF-related resource assessment, forecasting and sustainable harvest control techniques have been developed, but details about their use are not widely known. The emphasis in the book is on quantitative methods and modelling.
Book Synopsis Modeling Individual Tree Mortality of Jack Pine in the Eastern Boreal Forest, Ontario, Canada by : Ian Christopher Gillies
Download or read book Modeling Individual Tree Mortality of Jack Pine in the Eastern Boreal Forest, Ontario, Canada written by Ian Christopher Gillies and published by . This book was released on 2005 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Model was developed using sample plot data collected near Longlac in Northwestern Ontario.
Book Synopsis Tree Mortality and Top-Kill Related to Defoliation by the Douglas-Fir Tussock Moth in the Blue Mountains Outbreak (Classic Reprint) by : Boyd E. Wickman
Download or read book Tree Mortality and Top-Kill Related to Defoliation by the Douglas-Fir Tussock Moth in the Blue Mountains Outbreak (Classic Reprint) written by Boyd E. Wickman and published by Forgotten Books. This book was released on 2018-03-03 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Tree Mortality and Top-Kill Related to Defoliation by the Douglas-Fir Tussock Moth in the Blue Mountains Outbreak The data indicate that Douglas-fir suffers proportionally more tree mortality than grand fir. Douglas-fir comprises about 20 percent of the stand on the plots, but the total percent stand mortality almost equals grand fir mortality. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Book Synopsis Growth-dependent Tree Mortality by : Christof J. Bigler
Download or read book Growth-dependent Tree Mortality written by Christof J. Bigler and published by . This book was released on 2003 with total page 131 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Growth-dependent Tree Mortality by :
Download or read book Growth-dependent Tree Mortality written by and published by . This book was released on 2003 with total page 131 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Modeling Red Pine Tree Mortality: An Artificial Neural Network Approach by : Biing Tzuang Guan
Download or read book Modeling Red Pine Tree Mortality: An Artificial Neural Network Approach written by Biing Tzuang Guan and published by . This book was released on 1991 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The main objective of this study is to seek new modeling techniques to improve the ability of projecting tree mortality in forest growth and yield simulation. Multi-layer feed-forward artificial neural networks (ANN) are adopted to achieve the goal. The premise of ANN modeling approach is the ability of such networks to approximate any measurable or continuous function to any desired degree of accuracy, given enough complexity and training. In this study, two types of tree mortality models are developed based on red pine (Pinus resinosa Ait.) data collected from the Great Lakes region. Diameter at breast height (DBH) and annual diameter growth (ADG) are the explanatory variables in both types of models, and annual survival rate is the response variable. For the first type of models, training set consists of data obtained based on a cross-classified scheme. For the second type of models, individual tree records are used to construct training set. Training method for the first type of models is the back-propagation method, and networks are trained on serial computers. A method based on the fast simulated annealing is used to train models of the second, and the trainings are performed on a massively parallel computer. In addition to several goodness-of-fit and performance statistics, a model-based comparison approach is also developed to assess the performance of ANN mortality models against a benchmark statistical model. Results from this dissertation suggest that ANN mortality models not only fit the training data better than the benchmark model, but also expect to perform better in the future, provided that the training set are representative. Model-based comparisons show that ANN mortality model in general have lower prediction biases, but with larger prediction variances, than the benchmark model. Mean squared error criterion suggests that ANN mortality models are expected to perform better in the future, provided the training data are representative. A brief review of modeling tree mortality in forestry growth and yield projection, as well as an overview of neural computing approach, is also presented in this study. Other issues related to the use of artificial neural networks in forestry related modeling are also discussed.
