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Author : J. A. Zivnuska
Publisher :
ISBN 13 :
Total Pages : 2 pages
Book Rating : 4.:/5 (534 download)
Download or read book Some Growth Factors for Ponderosa Pine Trees in California written by J. A. Zivnuska and published by . This book was released on 1957 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : William W. Oliver
Publisher :
ISBN 13 :
Total Pages : 20 pages
Book Rating : 4.:/5 (319 download)
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.
Author : Michael G. Harrington
Publisher :
ISBN 13 :
Total Pages : 32 pages
Book Rating : 4.:/5 (319 download)
Download or read book Influence of Some Environmental Factors on Initial Establishment and Growth of Ponderosa Pine Seedlings written by Michael G. Harrington and published by . This book was released on 1979 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : William W. Oliver
Publisher :
ISBN 13 :
Total Pages : 28 pages
Book Rating : 4.:/5 (319 download)
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.
Author : James L. Jenkinson
Publisher :
ISBN 13 :
Total Pages : 24 pages
Book Rating : 4.:/5 (319 download)
Download or read book Edaphic Interactions in First-year Growth of California Ponderosa Pine written by James L. Jenkinson and published by . This book was released on 1973 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Thinning Decreases Mortality and Increases Growth of Ponderosa Pine in Northeastern California written by and published by . This book was released on 1989 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Robert F. Powers
Publisher :
ISBN 13 :
Total Pages : 8 pages
Book Rating : 4.:/5 (319 download)
Download or read book Estimating Site Index of Ponderosa Pine in Northern California-- Standard Curves, Soil Series, Stem Analysis written by Robert F. Powers and published by . This book was released on 1972 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : William W. Oliver
Publisher :
ISBN 13 :
Total Pages : 12 pages
Book Rating : 4.:/5 (319 download)
Download or read book Brush Reduces Growth of Thinned Ponderosa Pine in Northern California written by William W. Oliver and published by . This book was released on 1984 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Michael J. Arbaugh
Publisher :
ISBN 13 :
Total Pages : 16 pages
Book Rating : 4.:/5 (319 download)
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:
Author : James L. Van Deusen
Publisher :
ISBN 13 :
Total Pages : 18 pages
Book Rating : 4.:/5 (319 download)
Download or read book Periodic Growth of Pole-sized Ponderosa Pine as Related to Thinning and Selected Environmental Factors written by James L. Van Deusen and published by . This book was released on 1968 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : James L. Jenkinson
Publisher :
ISBN 13 :
Total Pages : 16 pages
Book Rating : 4.:/5 (319 download)
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.
Author : Philip A. Briegleb
Publisher :
ISBN 13 :
Total Pages : 78 pages
Book Rating : 4.:/5 (319 download)
Download or read book Calculating the Growth of Ponderosa Pine Forests written by Philip A. Briegleb and published by . This book was released on 1945 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Elvera A. Axelton
Publisher :
ISBN 13 :
Total Pages : 158 pages
Book Rating : 4.:/5 (319 download)
Download or read book Ponderosa Pine Bibliography Through 1965 written by Elvera A. Axelton and published by . This book was released on 1967 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Michael Wayne Jaquith
Publisher :
ISBN 13 :
Total Pages : 272 pages
Book Rating : 4.:/5 (276 download)
Download or read book Environmental Factors Influencing Height and Radial Growth of Ponderosa Pine Trees in Northern Arizona written by Michael Wayne Jaquith and published by . This book was released on 1970 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : C. A. Wellner
Publisher :
ISBN 13 :
Total Pages : 576 pages
Book Rating : 4.F/5 ( download)
Download or read book Spiral Grain written by C. A. Wellner and published by . This book was released on 1967 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Philip M. McDonald
Publisher :
ISBN 13 :
Total Pages : 32 pages
Book Rating : 4.:/5 (319 download)
Download or read book Competing Vegetation in Ponderosa Pine Plantations written by Philip M. McDonald and published by . This book was released on 1989 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Planted ponderosa pine (Pinus ponderosa Dougl. ex Laws. var. ponderosa) seedlings in young plantations in California are at a disadvantage compared with competing shrubs, forbs, and grasses. In many instances, roots of competing plants begin expanding and exploiting the soil earlier and in greater numbers, thereby capturing the majority of available resources and lowering pine survival and growth. Competition thresholds or "how much is too much?" are: for treatments where a cleared radius is prescribed, no weeds are acceptable within the space needed for maximum growth of pine seedlings during the establishment period; for treatments involving the entire area, crown cover values of 10 to 30 percent seem to be the level beyond which shrub competition significantly affects pine growth. Methods for preparing the site, which include mechanical and chemical methods, use of fire, and combinations of treatments, show the interaction of site and ensuing vegetation. Techniques for controlling competing vegetation from seed include preventing such plants from getting started by use of preemergent herbicides or mats (collars). To prevent sprouting, hardwood trees and large shrubs can be pushed over, thereby getting the root crown out of the ground, or if still in the soil, grinding it out with a machine. Once present, the effect of weeds from seed can be minimized by grubbing or spraying when young, by grazing plants with cattle or sheep, or by introducing plants of low competitive ability. Once sprouting weeds are present, their effect can be minimized by spraying with chemicals, or if palatable, by grazing with cattle or sheep. Costs range from as low as $10 per acre ($25/ha) for aerially applying herbicides to $711 per acre ($1757/ha) for grinding out tanoak stumps.
Author :
Publisher :
ISBN 13 :
Total Pages : 158 pages
Book Rating : 4.:/5 (3 download)
Download or read book U.S. Forest Service Research Paper INT written by and published by . This book was released on 1967 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:
