The National Forests in the Pacific Northwest
Author : United States. Forest Service. Pacific Northwest Region
Publisher :
Page : 40 pages
File Size : 47,22 MB
Release : 1970
Category : Forest management
ISBN :
Author : United States. Forest Service. Pacific Northwest Region
Publisher :
Page : 40 pages
File Size : 47,22 MB
Release : 1970
Category : Forest management
ISBN :
Author : United States Pacific Northwest Forest and Experiment Station
Publisher :
Page : 744 pages
File Size : 33,32 MB
Release : 1968
Category : Forest surveys
ISBN :
Author : Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
Publisher :
Page : 730 pages
File Size : 36,28 MB
Release : 1968
Category : Forests and forestry
ISBN :
Author : Victor G. Barnes
Publisher :
Page : 24 pages
File Size : 10,63 MB
Release : 1973
Category : Conifers
ISBN :
Pocket gophers (Thomomy spp.) have an important effect on reforestation in the Pacific Northwest through damage to conifer reproduction. Damage is most serious east of the Cascade Range in Washington and Oregon and northeastern California. Damage also has been reported in northern Idaho. The purpose of this report is to review pocket gopher problems in the Northwest, summarize present knowledge of gopher biology, outline current control methods, and suggest future research needs.
Author :
Publisher :
Page : 776 pages
File Size : 19,37 MB
Release : 1992
Category : Forests and forestry
ISBN :
Author :
Publisher :
Page : 20 pages
File Size : 11,60 MB
Release : 1978
Category : Forests and forestry
ISBN :
Author : United States. Superintendent of Documents
Publisher :
Page : 1504 pages
File Size : 35,50 MB
Release : 1979
Category : United States
ISBN :
Author :
Publisher :
Page : 674 pages
File Size : 41,58 MB
Release : 1983
Category : Forests and forestry
ISBN :
Author :
Publisher :
Page : 1746 pages
File Size : 23,22 MB
Release : 1977
Category : Government publications
ISBN :
Author :
Publisher :
Page : 2 pages
File Size : 33,35 MB
Release : 1970
Category : Forests and forestry
ISBN :