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Author : Ronald Eugene Stewart
Publisher :
ISBN 13 :
Total Pages : 64 pages
Book Rating : 4.:/5 (319 download)
Download or read book A Study of Douglas-fir Aerial Seeding written by Ronald Eugene Stewart and published by . This book was released on 1966 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 224 pages
Book Rating : 4.:/5 (2 download)
Download or read book USDA Forest Service General Technical Report PNW. written by and published by . This book was released on 1977 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Duane G. Moore
Publisher :
ISBN 13 :
Total Pages : 16 pages
Book Rating : 4.:/5 (319 download)
Download or read book Endrin in Forest Streams After Aerial Seeding with Endrin-coated Douglas-fir Seed written by Duane G. Moore and published by . This book was released on 1974 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 176 pages
Book Rating : 4.:/5 (319 download)
Download or read book Silvicultural Research and the Evolution of Forest Practices in the Douglas-fir Region written by and published by . This book was released on 2007 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: Silvicultural practices in the Douglas-fir region evolved through a combination of formal research, observation, and practical experience of forest managers and silviculturists, and changing economic and social factors. This process began more than a century ago and still continues. It has had a great influence on the economic well-being of the region and on the present characteristics of the regions forests. This long history is unknown to most of the public, and much of it is unfamiliar to many natural resource specialists outside (and even within) the field of silviculture. We trace the history of how we got where we are today and the contribution of silvicultural research to the evolution of forest practices. We give special attention to the large body of information developed in the first half of the past century that is becoming increasingly unfamiliar to both operational foresters andperhaps more importantlyto those engaged in forestry research. We also discuss some current trends in silviculture and silviculture-related research.
Author : G. E. Rehfeldt
Publisher :
ISBN 13 :
Total Pages : 4 pages
Book Rating : 4.:/5 (319 download)
Download or read book Seed Transfer Guidelines for Douglas-fir in Western Montana written by G. E. Rehfeldt and published by . This book was released on 1983 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Duane G. Moore
Publisher :
ISBN 13 :
Total Pages : 35 pages
Book Rating : 4.:/5 (631 download)
Download or read book Endrin in Forest Streams After Aerial Seeding With Endrin-Coated Douglas-Fir Seed written by Duane G. Moore and published by . This book was released on 1974 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 618 pages
Book Rating : 4.E/5 ( download)
Download or read book General Technical Report PNW-GTR written by and published by . This book was released on 2007 with total page 618 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Scott Wolff
Publisher :
ISBN 13 :
Total Pages : 88 pages
Book Rating : 4.:/5 (11 download)
Download or read book Spot Seeding Douglas-fir in the Pacific Northwest Using a Finnish Shelter Seeding Method written by Scott Wolff and published by . This book was released on 1983 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the largest problems facing the forester in the Pacific Northwest today is the economical, rapid rehabilitation of cut-over lands. Many of these cut-over lands are planted to Douglas-fir [Pseudotsuga menziesii (Mirb.) Franco]. Previously, both aerial and spot seeding techniques have been evaluated for their efficiency in Douglas-fir regeneration. The depredations of the apparently ubiquitous seed-eating mammals, however, have precluded wider utilization of seeding techniques. Spot seeding of Douglas-fir is an aspect of artificial seeding that should be examined more closely because of the protection afforded against seed depredation and the creation of favorable microenvironmental conditions for germination. Using a shelter seeding system, several Finnish and Swedish experimenters have been successful in establishing plantations of Scots pine (Pinus silvestris L.), Norway spruce (Picea abies L. Karst.), and Siberian larch (Larix sibirica) under a variety of conditions. A cooperative study was undertaken by the Oregon State University Forest Science Department and the Eugene District Bureau of Land Management to test on a moderate site, under Pacific Northwest conditions, a shelter seeding system developed in Finland. Questions that were to be specifically addressed included the possible requirement for artificial shading and the shelter's ability to prevent seed depredation. Results showed that the shelters stimulated early germination. The disintegration of the shelters during exposure to summer ultraviolet radiation precluded the necessity for subsequent removal. The shelters did not prove to be an effective rodent barrier, however, until they were modified. Further system development will be necessary before the planting tool can be used operationally with Douglas-fir seed.
Author : G. E. Rehfeldt
Publisher :
ISBN 13 :
Total Pages : 4 pages
Book Rating : 4.:/5 (319 download)
Download or read book Seed Transfer Guidelines for Douglas-fir in Central Idaho written by G. E. Rehfeldt and published by . This book was released on 1983 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 550 pages
Book Rating : 4.:/5 (89 download)
Download or read book USDA Forest Service Research Paper PNW. written by and published by . This book was released on 1976 with total page 550 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : R. O. Strothmann
Publisher :
ISBN 13 :
Total Pages : 56 pages
Book Rating : 4.:/5 (319 download)
Download or read book Regeneration of Douglas-fir in the Klamath Mountains Region, California and Oregon written by R. O. Strothmann and published by . This book was released on 1984 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Roger E. Sandquist
Publisher :
ISBN 13 :
Total Pages : 10 pages
Book Rating : 4.:/5 (13 download)
Download or read book Efficacy Evaluation of a Recommended Aerial Spray Regime to Suppress Douglas-fir Cone and Seed Insects written by Roger E. Sandquist and published by . This book was released on 1990 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
Publisher :
ISBN 13 :
Total Pages : 360 pages
Book Rating : 4.3/5 (91 download)
Download or read book Research Paper written by Pacific Northwest Forest and Range Experiment Station (Portland, Or.) and published by . This book was released on 1948 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Dennis E. Teeguarden
Publisher :
ISBN 13 :
Total Pages : 36 pages
Book Rating : 4.3/5 ( download)
Download or read book Economic Guides for Douglas-fir Reforestation in Southwestern Oregon written by Dennis E. Teeguarden and published by . This book was released on 1969 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 1814 pages
Book Rating : 4.3/5 (121 download)
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1976 with total page 1814 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : United States. Department of Agriculture
Publisher :
ISBN 13 :
Total Pages : 60 pages
Book Rating : 4.:/5 (31 download)
Download or read book The biologic and economic assessment of Endrin written by United States. Department of Agriculture and published by . This book was released on 1980 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Wilbur R. Maki
Publisher :
ISBN 13 :
Total Pages : 372 pages
Book Rating : 4.F/5 ( download)
Download or read book Importance of Timber-based Employment to the Douglas-fir Region, 1959-1971 written by Wilbur R. Maki and published by . This book was released on 1973 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt:
