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Author : Robert H. Ruth
Publisher : Unknown
Page : 34 pages
File Size : 42,8 Mb
Release : 1955
Category : Sitka spruce
ISBN : MINN:31951D02889941K
Author : Robert H. Ruth
Publisher : Forgotten Books
Page : 36 pages
File Size : 55,6 Mb
Release : 2018-09-07
Category : Gardening
ISBN : 1390530620
Excerpt from A 4-Year Record of Sitka Spruce and Western Hemlock Seed Fall Beginning in September, seed traps were examined every few days to determine when seed fall started. Thereafter, seed was collected from the traps monthly until February. A final collection was made each year during June or July. Seeds collected from the traps were classified by species and counted. Approximate viability was determined by cutting test, that is, seeds were opened with a razor blade and the cross sections examined; those appearing firm and white were considered viable. 4. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author : Anonim
Publisher : Unknown
Page : 224 pages
File Size : 50,8 Mb
Release : 1977
Category : Forests and forestry
ISBN : MINN:20000003684046
Author : Anonim
Publisher : Unknown
Page : 222 pages
File Size : 51,8 Mb
Release : 1977
Category : Forests and forestry
ISBN : UOM:39015001294043
Author : Robert H. Ruth
Publisher : Unknown
Page : 260 pages
File Size : 47,8 Mb
Release : 1970
Category : Sitka spruce
ISBN : MINN:31951D029954097
Author : Wilbur A. Farr,Vernon J. LaBau,Thomas H. Laurent
Publisher : Unknown
Page : 32 pages
File Size : 40,9 Mb
Release : 1976
Category : Forestry research
ISBN : UVA:X002635904
Author : Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
Publisher : Unknown
Page : 262 pages
File Size : 49,7 Mb
Release : 1970
Category : Forests and forestry
ISBN : UOM:39015027094294
Author : Douglas N. Swanston
Publisher : Unknown
Page : 628 pages
File Size : 49,9 Mb
Release : 1970
Category : Landslides
ISBN : STANFORD:36105119572563
Author : Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
Publisher : Unknown
Page : 1198 pages
File Size : 42,9 Mb
Release : 1948
Category : Forests and forestry
ISBN : STANFORD:36105130404481
Author : Anonim
Publisher : Unknown
Page : 8 pages
File Size : 55,7 Mb
Release : 1955
Category : Forests and forestry
ISBN : MINN:31951D029866228
Author : T. A. McClay
Publisher : Unknown
Page : 700 pages
File Size : 50,5 Mb
Release : 1955
Category : Douglas fir
ISBN : STANFORD:36105130404663
Author : Anonim
Publisher : Unknown
Page : 896 pages
File Size : 47,8 Mb
Release : 1990
Category : Agriculture
ISBN : MINN:31951D02881496J
Set includes revised editions of some issues.
Author : N. Merle Peterson,Patrick Martin
Publisher : UBC Press
Page : 360 pages
File Size : 55,7 Mb
Release : 2011-11-01
Category : Technology & Engineering
ISBN : 9780774844253
Sitka spruce, the largest of the world's spruces, is an important component of British Columbia's coastal forests. Its ecology gives it a special place in the sustainable management of the province's forests. However, in west coast forestry it is poorly known in comparison with its main coniferous companions -- Douglas-fir, western redcedar, and western hemlock. As an important international forestry resource, it is crucial that Sitka spruce -- its ecology and the ecosystems in which it occurs -- be clearly understood by those who are involved with its management.
Author : Ellis Tilton Williams,Joseph Wesley Gentry
Publisher : Unknown
Page : 1260 pages
File Size : 47,8 Mb
Release : 1964
Category : Agriculture
ISBN : UIUC:30112019248027
Author : United States. Forest Service. Division of Timber Management
Publisher : Unknown
Page : 772 pages
File Size : 47,9 Mb
Release : 1965
Category : Forest ecology
ISBN : UVA:X030491437