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Growth Models For Ponderosa Pine
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Book Synopsis Growth models for ponderosa pine by : William W. Oliver
Download or read book Growth models for ponderosa pine written by William W. Oliver and published by . This book was released on 1978 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Yields for high-survival, unthinned ponderosa pine (Pinus ponderosa Laws.) plantations in northern California are estimated. Stems of 367 trees in 12 plantations were analyzed to produce a growth model simulating stand yields. Diameter, basal area, and net cubic volume yields by Site Indices, 40 through 120 are tabulated for stands ranging in age between 10 and 50 years and in spacing between 6 by 6 and 12 by 12 feet. Tables also show diameter distributions by crown classes and stem volumes in cubic feet for plantation-grown ponderosa pine. These data provide both a standard with which to compare the effects of management decisions, and a performance goal.
Book Synopsis Growth Intercept, Years-to-breast-height, and Juvenile Height Growth Models for Ponderosa Pine by : Gordon Donald Nigh
Download or read book Growth Intercept, Years-to-breast-height, and Juvenile Height Growth Models for Ponderosa Pine written by Gordon Donald Nigh and published by . This book was released on 2002 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes features of three models developed for estimating site index & height growth of ponderosa pine. The models are based on data from 80 ponderosa pine stem analysis plots established throughout the range of this species in British Columbia. The first model is used to calculate the number of years that a tree takes to reach breast height. The second model calculates the average annual height growth, adjusted for age. The final model is for calculating juvenile height.
Book Synopsis Growth Models for Ponderosa Pine by : William W. Oliver
Download or read book Growth Models for Ponderosa Pine written by William W. Oliver and published by . This book was released on 1978 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Stemwood Production Patterns in Ponderosa Pine by : Michael J. Arbaugh
Download or read book Stemwood Production Patterns in Ponderosa Pine written by Michael J. Arbaugh and published by . This book was released on 1993 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Development and Evaluation of an Even- and Uneven-aged Ponderosa Pine/Arizona Fescue Stand Simulator by : David W. Hann
Download or read book Development and Evaluation of an Even- and Uneven-aged Ponderosa Pine/Arizona Fescue Stand Simulator written by David W. Hann and published by . This book was released on 1980 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Height Growth and Site Index Curves for Managed, Even-aged Stands of Ponderosa Pine in the Pacific Northwest by : James Willis Barrett
Download or read book Height Growth and Site Index Curves for Managed, Even-aged Stands of Ponderosa Pine in the Pacific Northwest written by James Willis Barrett and published by . This book was released on 1978 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Tree Height and Diameter Growth Models for Northern California Conifers by : Lee C. Wensel
Download or read book Tree Height and Diameter Growth Models for Northern California Conifers written by Lee C. Wensel and published by . This book was released on 1987 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Heavy Fertilization Increases Diameter Growth Slightly in a 55-year-old Ponderosa Pine Stand in Central Arizona by : L. J. Heidmann
Download or read book Heavy Fertilization Increases Diameter Growth Slightly in a 55-year-old Ponderosa Pine Stand in Central Arizona written by L. J. Heidmann and published by . This book was released on 1985 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Adaptive Variation and Seed Transfer for Ponderosa Pine in Central Idaho by : G. E. Rehfeldt
Download or read book Adaptive Variation and Seed Transfer for Ponderosa Pine in Central Idaho written by G. E. Rehfeldt and published by . This book was released on 1987 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Growth of Planted Ponderosa Pine Thinned to Different Stocking Levels in Northern California by : William W. Oliver
Download or read book Growth of Planted Ponderosa Pine Thinned to Different Stocking Levels in Northern California written by William W. Oliver and published by . This book was released on 1979 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Growth was strongly related to growing stock level (GSL) for 5 years after thinning 20-year-old poles on Site Index50 115 land at the Elliot Ranch Plantation in northern California. Five GSL's- basal areas anticipated when trees average 10 inches d. b. h. or more - ranging from 40 to 160 square feet per acre were tested. Periodic annual increment (PAI) in diameter decreased curvilinearly from 0.51 to 0.21 inch, with increasing GSL's from 40 to 160. But only trees in plots heavily thinned to GSL 40 (and briefly in GSL 70) grew faster in diameter after thinning than these same trees grew before thinning. PAI in basal area and net volume rose steadily with increasing GSL9s, reaching 9.0 square feet and 255 cubic feet per acre, respectively, at GSL 160. Apparently, even light thinning reduced volume production, but thinning still is recommended to shorten time until first commercial entry and to promote stand health.
Book Synopsis Growth Analysis of Heterogeneous Stands of Ponderosa Pine and Lodgepole Pine in Central Oregon by : Doug B. Mainwaring
Download or read book Growth Analysis of Heterogeneous Stands of Ponderosa Pine and Lodgepole Pine in Central Oregon written by Doug B. Mainwaring and published by . This book was released on 2000 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: Basal area and height growth were analyzed for individual trees in uneven-aged ponderosa and lodgepole pine stands in central Oregon. Basal area growth was modeled as a function of other stand and tree variables to address five general objectives: 1) to compare the predictive ability of distance-dependent versus distance-independent stand density variables; 2) to determine the degree to which small trees negatively affect the growth of overstory trees; 3) to compare attributes of trees demonstrating varying levels of growth efficiency, and differences imposed by species and by the index of spatial occupancy used to define efficiency; 4) to determine how estimates of growth and growth efficiency change when multiple spatial occupancy indices and more functional variables are used within the model; and 5) to compare changes in growth and growth efficiency following alternative silvicultural treatments simulated on the basis of the fitted growth model. Distance-dependent variables were found to improve growth predictions when added to models with only distance-independent variables. However, this improvement was not considered sufficient to warrant the necessary labor-intensive collection procedures. Small trees were found to have a quantifiably negative effect on the growth of larger trees. However, the volume growth gained as a result of removing them was small enough to question the utility of doing so for improving overstory growth. The growth efficiency of a given tree was found to depend on the index of growing space by which that efficiency was defined. Likewise, growth efficiency patterns differed by species. While volume growth efficiency (VGE) declined with increasing levels of spatial occupancy for lodgepole pine, ponderosa pine VGE was greatest at the highest levels of crown base sapwood area and crown projection area. A single index of spatial occupancy was found to be an insufficient description of a tree's spatial occupancy from the standpoint of growth--inclusion of multiple indices of spatial occupancy and more functional variables to growth models improved growth predictions significantly. When different types of harvests were simulated on these plots, the growth responses depended on removal size class. Growth response within a given size class was greatest when basal area removal across the plot was concentrated among the largest trees. Stand growth response followed the opposite trend. Growth efficiency of residual trees was most dependent on the arrangement and characteristics of individual plot trees.
Book Synopsis Increasing Planting Stock Size by Family Selection in California Ponderosa Pine by : James L. Jenkinson
Download or read book Increasing Planting Stock Size by Family Selection in California Ponderosa Pine written by James L. Jenkinson and published by . This book was released on 1975 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wind-pollinated families from four geographic areas in the northern Sierra Nevada were tested in the nursery. For every area, the native families differed significantly from each other in 1-year seedling height, and in 2-year height, diameter, and stem volume. Family growth was poorly correlated with family seed weight; it was independent of germination speed and seed parent stem volume. The size of planting stock can be improved and small-grade seedling production decreased by eliminating from future collections seed trees whose families show poor growth in the nursery.
Book Synopsis A Compendium of Forest Growth and Yield Simulators for the Pacific Coast States by : Martin W. Ritchie
Download or read book A Compendium of Forest Growth and Yield Simulators for the Pacific Coast States written by Martin W. Ritchie and published by . This book was released on 1999 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effects of Watering Treatments on Germination, Survival and Growth of Ponderosa Pine by : Daniel L. Noble
Download or read book Effects of Watering Treatments on Germination, Survival and Growth of Ponderosa Pine written by Daniel L. Noble and published by . This book was released on 1979 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Growth and Mortality of Ponderosa Pine Poles Thinned to Various Densities in the Blue Mountains of Oregon by : P. H. Cochran
Download or read book Growth and Mortality of Ponderosa Pine Poles Thinned to Various Densities in the Blue Mountains of Oregon written by P. H. Cochran and published by . This book was released on 1995 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
