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Forest Ecosystem Of Southeast Alaska Forest Insects
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Author :Pacific Northwest Forest and Range Experiment Station (Portland, Or.) Publisher : ISBN 13 : Total Pages :40 pages Book Rating :4.0/5 ( download)
Book Synopsis The Forest Ecosystem of Southeast Alaska: Forest insects, by J. S. Hard by : Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
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:
Book Synopsis The Forest Ecosystem of Southeast Alaska by : John S. Hard
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.
Book Synopsis The Forest Ecosystem of Southeast Alaska by : John S. Hard
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 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Forest Ecosystem of Southeast Alaska by : A. S. Harris
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.
Book Synopsis The Forest Ecosystem of Southeast Alaska by : John S. Hard
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:
Book Synopsis The Forest Ecosystem of Southeast Alaska by :
Download or read book The Forest Ecosystem of Southeast Alaska written by and published by . This book was released on 1974 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tongass Odyssey written by John Schoen and published by University of Alaska Press. This book was released on 2020-09-01 with total page 357 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tongass Odyssey is a biologist’s memoir of personal experiences over the past four decades studying brown bears, deer, and mountain goats and advocating for conservation of Alaska’s Tongass National Forest. The largest national forest in the nation, the Tongass encompasses the most significant expanse of intact old-growth temperate rainforest remaining on Earth. Tongass Odyssey is a cautionary tale of the harm that can result when science is eclipsed by politics that are focused on short-term economic gain. Yet even as those problems put the Tongass at risk, the forest also represents a unique opportunity for conserving large, intact landscapes with all their ecological parts, including wild salmon, bears, wolves, eagles, and other wildlife. Combining elements of personal memoir, field journal, natural history, conservation essay, and philosophical reflection, Tongass Odyssey tells an engaging story about an enchanting place.
Book Synopsis The Forest Ecosystem of Southeast Alaska: Hard, J.S. Forest insects by :
Download or read book The Forest Ecosystem of Southeast Alaska: Hard, J.S. Forest insects written by and published by . This book was released on 1974 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Insects and Diseases of Alaskan Forests by : Edward H. Holsten
Download or read book Insects and Diseases of Alaskan Forests written by Edward H. Holsten and published by . This book was released on 1985 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Insects and Diseases of Alaskan Forests by :
Download or read book Insects and Diseases of Alaskan Forests written by and published by . This book was released on 2001 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Occurrence of Insect and Disease Pests on Young-growth Sitka Spruce and Western Hemlock in Southeastern Alaska by : Susan M. Tait
Download or read book Occurrence of Insect and Disease Pests on Young-growth Sitka Spruce and Western Hemlock in Southeastern Alaska written by Susan M. Tait and published by . This book was released on 1985 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Pacific Northwest Forest and Range Experiment Station (Portland, Or.) Publisher : ISBN 13 : Total Pages :120 pages Book Rating :4.0/5 ( download)
Book Synopsis The Forest Ecosystem of Southeast Alaska: Forest ecology and timber management, by A. S. Harris and W. A. Farr by : Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
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:
Book Synopsis Tongass National Forest (N.F.), Land Management Plan Revision: Environmental Impact Statement by :
Download or read book Tongass National Forest (N.F.), Land Management Plan Revision: Environmental Impact Statement written by and published by . This book was released on 1997 with total page 1022 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Tongass National Forest (N.F.), Ketchikan Pulp Company Long-term Timber Sale Contract, Polk Inlet by :
Download or read book Tongass National Forest (N.F.), Ketchikan Pulp Company Long-term Timber Sale Contract, Polk Inlet written by and published by . This book was released on 1995 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Forest Insect and Disease Conditions in Alaska in ... by :
Download or read book Forest Insect and Disease Conditions in Alaska in ... written by and published by . This book was released on 2001 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Research Note PNW written by and published by . This book was released on 1985 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Multivariate Analysis of Climate Along the Southern Coast of Alaska by : Wilbur A. Farr
Download or read book Multivariate Analysis of Climate Along the Southern Coast of Alaska written by Wilbur A. Farr and published by . This book was released on 1987 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
