Author: Robert M. RandallPublisher:
ISBN:
Category :
Languages : en
Pages : 8
Book Description
Financial consequences of commercial thinning regimes in young-growth Douglas fir
Author: Robert M. RandallFinancial consequences of commercial thinning regimes in young-growth Douglas fir
Author: Robert M. RandallPublisher:
ISBN:
Category : Douglas fir
Languages : en
Pages : 0
Book Description
U.S.D.A. Forest Service Research Note PNW.
Author: Pacific Northwest Forest and Range Experiment Station (Portland, Or.)Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 8
Book Description
Forest Economics Research at the Pacific Northwest Research Station to 2000
Author: Donald F. FloraPublisher:
ISBN:
Category : Forest management
Languages : en
Pages : 218
Book Description
The contributions for over 80 years by scientists at the Pacific Northwest Research Station to developments in economic theory, economic tools, policies, and economic issues are summarized. This is a story of progressive accomplishments set against a constantly changing background of economic and social events.
General Technical Report RM.
Author: Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 772
Book Description
General Technical Report PNW-GTR
Author: Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 1074
Book Description
Silvicultural Options for Young-growth Douglas-fir Forests
Author: Publisher:
ISBN:
Category : Douglas fir
Languages : en
Pages : 128
Book Description
This report describes the origin, design, establishment and measurement procedures and first results of a large long-term cooperative study comparing a number of widely different silvicultural regimes applied to young-growth Douglas-fir (Pseudotsuga menziesii) stands managed for multiple objectives. Regimes consist of (1) conventional clearcutting followed by intermediate thinning; (2) retention of reserve trees to create a two-aged stand; (3) small patch cuts dispersed within a thinned matrix, repeated at approximately 15-year intervals to create a mosaic of age classes; (4) group selection within a thinned matrix on an approximate 15-year cycle; (5) continued thinning on an extended rotation; and (6) an untreated control. Each of these regimes is on operationsize units (about 30 to 70 acres each). Output variables to be evaluated include conventional timber growth and yield statistics, harvest costs, sale layout and administration costs, aesthetic effects and public acceptance, soil disturbance, bird populations, and economic aspects. Descriptive statistics and some initial results are presented for the first replicate, established in 1997-98.
Errors from application of western hemlock site curves to mountain hemlock
Author: Francis R. HermanMonthly Catalog of United States Government Publications
Author: United States. Superintendent of DocumentsPublisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1228
Book Description
February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index
More from Our Forested Resources
Author: United States. Forest ServicePublisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 140
Book Description