Diameter Growth Of Individual Hardwood Trees
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Diameter Growth Of Individual Hardwood Trees
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Author : George R. Trimble (Jr.)
language : en
Publisher:
Release Date : 1969
Diameter Growth Of Individual Hardwood Trees written by George R. Trimble (Jr.) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1969 with Growth (Plants) categories.
Diameter Growth Of Individual Hardwood Trees
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Author : George R. Trimble (Jr.)
language : en
Publisher:
Release Date : 1969
Diameter Growth Of Individual Hardwood Trees written by George R. Trimble (Jr.) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1969 with Growth (Plants) categories.
S2Between 1959 and 1967 a study of d.b.h. growth rates was made on individual hardwood trees near Parsons, W. Va. From this study, we obtained information that will help foresters to predict growth. We learned that the correlation of the more easily used crown classification with d.b.h. growth is as good as or better than the correlation of vigor classes with d.b.h. growth. We discovered that when crown classes are identified, crown measurements such as width and length add practically nothing of predictive value. We established that tree d.b.h. is positively and strongly correlated with d.b.h. growth in these mixed hardwood stands. We learned that a measure of total surrounding basal area is not a good predictor of individual tree d.b.h. growth in these stands. We compiled annual d.b.h. growth by crown classes for several important species on several levels of forest site quality. In this report, d.b.h. growth is discussed in relationship to: (1) crown and vigor classes, (2) crown measurements, (3) initial d.b.h., (4) basal-area density, and (5) species and site quality. S3.
Diameter Growth Of Individual Hardwood Trees Effect Of Certain Tree And Environmental Factors On Growth Of Several Species With List Of Literature Cited
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Author :
language : en
Publisher:
Release Date : 1969
Diameter Growth Of Individual Hardwood Trees Effect Of Certain Tree And Environmental Factors On Growth Of Several Species With List Of Literature Cited written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1969 with categories.
Diameter Growth Of Induvidual Hardwood Trees
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Author : G. R. Trimble
language : en
Publisher:
Release Date : 1969
Diameter Growth Of Induvidual Hardwood Trees written by G. R. Trimble and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1969 with categories.
Individual Tree Diameter Growth Model For Managed Even Aged Upland Oak Stands
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Author : Donald E. Hilt
language : en
Publisher:
Release Date : 1983
Individual Tree Diameter Growth Model For Managed Even Aged Upland Oak Stands written by Donald E. Hilt and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983 with Oak categories.
Precommercial Crop Tree Release Increases Diameter Growth Of Appalachian Hardwood Saplings
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Author : H. Clay Smith
language : en
Publisher:
Release Date : 1983
Precommercial Crop Tree Release Increases Diameter Growth Of Appalachian Hardwood Saplings written by H. Clay Smith and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983 with Hardwoods categories.
Growth Model For Uneven Aged Loblolly Pine Stands
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Author : Ching-Rong Lin
language : en
Publisher:
Release Date : 1998
Growth Model For Uneven Aged Loblolly Pine Stands written by Ching-Rong Lin and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Loblolly pine categories.
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.
Stand Development And Yields Of Appalachian Hardwood Stands Managed With Single Tree Selection For At Least 30 Years
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Author : Neil I. Lamson
language : en
Publisher:
Release Date : 1991
Stand Development And Yields Of Appalachian Hardwood Stands Managed With Single Tree Selection For At Least 30 Years written by Neil I. Lamson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with Forests and forestry categories.
S2Appalachian hardwood stands in West Virginia were managed for 30 or more years using single-tree selection regeneration practices. Stand yield data suggest that current stand growth will provide economical harvest cuts for several future cutting cycles. This case study indicates that single-tree selection has potential for landowners who want to maintain continuous overstory cover and are willing to accept the gradual species shift to more shade-tolerant species.S3.
Sets An Individual Tree Approach To Making Stand Evaluations
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Author : Paul S. DeBald
language : en
Publisher:
Release Date : 1976
Sets An Individual Tree Approach To Making Stand Evaluations written by Paul S. DeBald and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1976 with Forests and forestry categories.
Evaluating Growth Performance Of Young Stands
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Author : Arthur Lawrence Roe
language : en
Publisher:
Release Date : 1966
Evaluating Growth Performance Of Young Stands written by Arthur Lawrence Roe and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1966 with Trees categories.
A simple procedure for evaluating the diameter growth of young stands in relation to potential growth is described. A comparison technique is developed which contrasts relative diameter of crop trees to the relative diameter growth of the last decade to show the condition and trend of growth in the stand. The method is objective, easy to use, and has several applications such as: (1) determining relative growth performance of trees and stands, (2) confirming the need for thinning and setting of priority among stands, and (3) determining the growth impact of disease and other growth depressing agents. The technique does not replace more complex, precise methods of growth study.