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Author: Floyd G. Manwiller
Publisher:
ISBN:
Category : Spruce
Languages : en
Pages : 32
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Book Description
Author: Floyd G. Manwiller
Publisher:
ISBN:
Category : Spruce
Languages : en
Pages : 32
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Book Description
Author: Floyd G. Manwiller
Publisher:
ISBN:
Category : Spruce
Languages : en
Pages : 0
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Author:
Publisher:
ISBN:
Category : Juvenile wood
Languages : en
Pages : 48
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Book Description
To satisfy the increasing demand for forest products, much of the future timber supply will be from improved trees grown on managed plantations. This fast-grown resource will tend to be harvested in short age rotations and will contain higher proportions of juvenile wood than that of current harvests. In anticipation of this resource, definitive information is needed on the influence of juvenile wood on lumber properties so that grading rules and the associated allowable design stresses can be modified as needed. This document reports the results of an extensive review of the literature on juvenile wood in southern pines. This report defines and discusses the extent, occurrence, and characteristics of juvenile wood. It reviews the effects that environment and silviculture have on the amount of juvenile wood produced. Finally, the impacts that juvenile wood has on mechanical properties were quantified. The results of this quantification are significant to all producers of fast-grown plantations. Research has clearly shown that juvenile wood will have a detrimental impact on allowable design stresses for visually graded lumber. It is critical that methods are developed to more carefully manage fast-grown plantation wood for its most efficient use. This review should serve as an overall collection of knowledge pertaining to juvenile wood research in southern pines and should help in the decision-making efforts to improve seedling selection techniques and silvicultural practices to maximize the potential for fast-grown plantations of southern pines.
Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 640
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Book Description
Author: Alan Crivellaro
Publisher: Springer Science & Business Media
ISBN: 364237235X
Category : Science
Languages : en
Pages : 589
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Book Description
This atlas presents anatomical descriptions of the xylem, bark and pith of 264 species belonging to 71 families. It highlights the anatomical diversity of trees, shrubs, dwarf shrubs, woody lianas and several of the prominent perennial herbs from the Eastern Mediterranean region, with a focus on the island of Cyprus. The island’s topography and biogeographic history combine to provide a wide range of habitats and diverse flora including widespread, endemic, and ornamental species. The monograph for each species includes a description of the anatomical structures of the stem and twig xylem and the twig’s bark and pith, as well as color micrographs of double-stained sections of each of these plant parts. These entries are accompanied by a photograph and a brief description of the plant including stem wood density, height, habit, flower, leaf and fruit characteristics, and a map showing its geographic and altitudinal distribution in the region. Xylem descriptions follow the IAWA lists of microscopic features for hardwood and softwood identification. For bark and pith descriptions, a new coding system developed by the authors is applied. Lastly, the work offers a key for wood identification that was developed to differentiate between groups of species by using a small number of features that are unambiguous and clearly visible. The atlas will be a valuable guide for botanists, ecologists, foresters, archeologists, horticulturists and paleobotanists.
Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 704
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Book Description
Author: United States. Superintendent of Documents
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1282
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Book Description
February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index
Author: Peter Koch
Publisher:
ISBN:
Category : Forest products
Languages : en
Pages : 1434
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Author:
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 1440
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Book Description
Set includes revised editions of some issues.
Author:
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 1732
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Book Description
