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Author :
Publisher :
ISBN 13 :
Total Pages : 734 pages
Book Rating : 4.F/5 ( download)
Download or read book The Forest Ecosystem of Southeast Alaska written by and published by . This book was released on 1974 with total page 734 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
Publisher :
ISBN 13 :
Total Pages : 40 pages
Book Rating : 4.3/5 (91 download)
Download or read book The Forest Ecosystem of Southeast Alaska written by Pacific Northwest Forest and Range Experiment Station (Portland, Or.) and published by . This book was released on 1974 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
Publisher :
ISBN 13 :
Total Pages : 48 pages
Book Rating : 4.0/5 ( download)
Download or read book The Forest Ecosystem of Southeast Alaska: The setting, by A. S. Harris written by Pacific Northwest Forest and Range Experiment Station (Portland, Or.) and published by . This book was released on 1974 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : A. S. Harris
Publisher :
ISBN 13 :
Total Pages : 120 pages
Book Rating : 4.:/5 (31 download)
Download or read book The Forest Ecosystem of Southeast Alaska written by A. S. Harris and published by . This book was released on 1974 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: Large-scale use of the timber resource of southeast Alaska began in 1953 after long efforts to establish a timber industry. Development and present status of the industry and present management of the timber resource are summarized, stressing the biological basis for timber management activities in southeast Alaska today. Ecological and silvicultural considerations related to timber harvest, reforestation, and stand development are discussed. Published and unpublished information are brought together. Current management practices are discussed as a basis for a better understanding of how this information can be helpful in managing the timber resource and to point out where research is needed.
Author : A. S. Harris
Publisher :
ISBN 13 :
Total Pages : 48 pages
Book Rating : 4.:/5 (319 download)
Download or read book The Forest Ecosystem of Southeast Alaska written by A. S. Harris and published by . This book was released on 1974 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: A description of the discovery and exploration of southeast Alaska sets the scene for a discussion of the physical and biological features of this region. Subjects discussed include geography, climate, vegetation types, geology, minerals, forest products, soils, fish, wildlife, water, recreation, and aesthetic values. This is the first of a series of publications summarizing present knowledge of southeast Alaska's forest resources. Publications will follow which discuss in detail the subjects mentioned above and how this information can be helpful in managing the resources.
Author : Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
Publisher :
ISBN 13 :
Total Pages : 120 pages
Book Rating : 4.0/5 ( download)
Download or read book The Forest Ecosystem of Southeast Alaska: Forest ecology and timber management, by A. S. Harris and W. A. Farr written by Pacific Northwest Forest and Range Experiment Station (Portland, Or.) and published by . This book was released on 1974 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : William R. Meehan
Publisher :
ISBN 13 :
Total Pages : 40 pages
Book Rating : 4.:/5 (319 download)
Download or read book The Forest Ecosystem of Southeast Alaska written by William R. Meehan and published by . This book was released on 1974 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effects of logging and associated activities on the habitat of the major forest wildlife species in southeast Alaska are discussed and research results applicable to this region are summarized. Big game, furbearers, and non-game species are considered with respect to their habitat requirements and behavior. Recommendations are made for habitat management with primary concern for wildlife populations. Future needs for wildlife habitat research in southeast Alaska are presented.
Author : Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
Publisher :
ISBN 13 :
Total Pages : 28 pages
Book Rating : 4.0/5 ( download)
Download or read book The Forest Ecosystem of Southeast Alaska: Soil mass movement, by D. N. Swanston written by Pacific Northwest Forest and Range Experiment Station (Portland, Or.) and published by . This book was released on 1974 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
Publisher :
ISBN 13 :
Total Pages : 36 pages
Book Rating : 4.0/5 ( download)
Download or read book The Forest Ecosystem of Southeast Alaska: Forest diseases, by T. H. Laurent written by Pacific Northwest Forest and Range Experiment Station (Portland, Or.) and published by . This book was released on 1974 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Douglas N. Swanston
Publisher :
ISBN 13 :
Total Pages : 28 pages
Book Rating : 4.:/5 ( download)
Download or read book The Forest Ecosystem of Southeast Alaska written by Douglas N. Swanston and published by . This book was released on 1974 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research in southeast Alaska has identified soil mass movement as the dominant erosion process, with debris avalanches and debris flows the most frequent events on characteristically steep, forested slopes. Periodically high soil water levels and steep slopes are controlling factors. Bedrock structure and the rooting characteristics of trees and other vegetation exert a strong influence on relative stability of individual sites. Timber harvesting operations have a major impact on initiation and acceleration of these movements. The cutting of timber itself has been directly linked with accelerated mass movements, and the accumulation of debris in gullies and canyons has been identified as a major contributor to the formation of large-scale debris flows or debris torrents. The limited road construction on steeper slopes thus far has had a relatively small impact. Effective management practices on such terrain consist of identification and avoidance of the most unstable areas and careful control of forest harvesting operations in questionable zones.
Author :
Publisher :
ISBN 13 :
Total Pages : 124 pages
Book Rating : 4.:/5 (319 download)
Download or read book The Forest Ecosystem of Southeast Alaska written by and published by . This book was released on 1974 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : William R. Meehan
Publisher :
ISBN 13 :
Total Pages : 50 pages
Book Rating : 4.:/5 (319 download)
Download or read book The Forest Ecosystem of Southeast Alaska written by William R. Meehan and published by . This book was released on 1974 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effects of logging and associated activities on fish habitat in southeastern Alaska are discussed, and fish habitat research applicable to southeast Alaska is summarized. Requirements of salmonids for suitable spawning and rearing areas are presented. Factors associated with timber harvest which may influence these habitats are discussed in detail; e.g., sediment, stream temperature, streamflow, logging debris, and chemicals. Recommendations for further research are made.
Author : Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
Publisher :
ISBN 13 :
Total Pages : 124 pages
Book Rating : 4.0/5 ( download)
Download or read book The Forest Ecosystem of Southeast Alaska written by Pacific Northwest Forest and Range Experiment Station (Portland, Or.) and published by . This book was released on 1974 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : John S. Hard
Publisher :
ISBN 13 :
Total Pages : 40 pages
Book Rating : 4.:/5 (3 download)
Download or read book The Forest Ecosystem of Southeast Alaska written by John S. Hard and published by . This book was released on 1974 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: Southeast Alaska's remaining virgin forests have few insect pests. The black-headed budworm and the hemlock sawfly, both western hemlock defoliators, are the most important species. They kill some trees, kill tops in others, and cause growth loss, but stands survive their attacks. Extensive conversion of virgin stands to second growth may result in an increase in pest problems as it has in similar areas such as coastal British Columbia. ??Widespread use of insecticides to control major outbreaks is not practical because of risk of contaminating salmon-spawning and trout-rearing streams; but insecticide use may be justified in local, high value areas. Weather, diseases, and parasites control outbreaks naturally. Damage-prone stands should be identified and harvested before insect attack or salvage-logged following outbreaks. Ideally, second-growth stands should be managed for resistance to insect pests.
Author : Thomas H. Laurent
Publisher :
ISBN 13 :
Total Pages : 36 pages
Book Rating : 4.:/5 ( download)
Download or read book The Forest Ecosystem of Southeast Alaska written by Thomas H. Laurent and published by . This book was released on 1974 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: The disease problems of old growth are largely being taken care of by cutting. This same cutting is rapidly converting large areas of old growth to reproduction and young growth. It is in these areas of young growth that our disease problems will most probably arise. With a few exceptions the reproduction and young-growth stands appear quite healthy at this time with the diseases that are present just doing a bit of natural thinning. These new stands should be closely studied. Damage appearing in young stands may be due toor may be corrected bycertain silvicultural practices such as thinning, or perhaps completely prevented by a modification of the methods used in removing the previous stand.
Author : Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
Publisher :
ISBN 13 :
Total Pages : 40 pages
Book Rating : 4.0/5 ( download)
Download or read book The Forest Ecosystem of Southeast Alaska: Forest insects, by J. S. Hard written by Pacific Northwest Forest and Range Experiment Station (Portland, Or.) and published by . This book was released on 1974 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Donald C. Schmiege
Publisher :
ISBN 13 :
Total Pages : 32 pages
Book Rating : 4.:/5 (31 download)
Download or read book The Forest Ecosystem of Southeast Alaska written by Donald C. Schmiege and published by . This book was released on 1974 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
