Logging in the Douglas Fir Region
Author : William Henry Gibbons
Publisher :
Page : 270 pages
File Size : 30,14 MB
Release : 1918
Category : Douglas fir
ISBN :
Author : William Henry Gibbons
Publisher :
Page : 270 pages
File Size : 30,14 MB
Release : 1918
Category : Douglas fir
ISBN :
Author : William Henry Gibbons
Publisher :
Page : 256 pages
File Size : 23,28 MB
Release : 1918
Category : Douglas fir
ISBN :
Author : Allen H. Hodgson
Publisher :
Page : 46 pages
File Size : 14,85 MB
Release : 1930
Category : Douglas fir
ISBN :
Author : Burt Persons Kirkland
Publisher :
Page : 176 pages
File Size : 12,57 MB
Release : 1936
Category : Forest management
ISBN :
Author : David Bruce
Publisher :
Page : 38 pages
File Size : 27,49 MB
Release : 1968
Category : Forests and forestry
ISBN :
Author : Horace Justin Andrews
Publisher :
Page : 180 pages
File Size : 30,17 MB
Release : 1940
Category : Agriculture
ISBN :
The highest service that forests of the Douglas-fir region can render is in support and stabilization of communities dependent on them. Forests support in one way or another about half the population of the region. To redeem this enormous responsibility for service, forests must furnish a permanent annual harvest of material equal at least to present production. This will required sustained-yield forest practice, including acceptance of the responsibilities of permanent ownership.
Author : United States. Congress. House. Committee on Ways and Means
Publisher :
Page : 120 pages
File Size : 34,46 MB
Release : 1940
Category :
ISBN :
Author : Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
Publisher :
Page : 364 pages
File Size : 37,6 MB
Release : 1943
Category : Job analysis
ISBN :
Author : William H. GIBBONS
Publisher :
Page : 256 pages
File Size : 32,52 MB
Release : 1918
Category :
ISBN :
Author : Axel John Felix Brandstrom
Publisher :
Page : 136 pages
File Size : 48,28 MB
Release : 1933
Category : Logging
ISBN :