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College of Forestry

Oregon State University Research Forests Research Projects

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Project Start Year

Operator

Min

Max

Project Categories

Agriculture
- Agroforestry
- Grazing
- Rangeland Planning
Aquatic Organisms
- Crustaceans & Snails
- Fish
- Various Aquatic Invertebrates
Environmental Factors
- Browsing
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Forest Management
- Chemical Control
- Fertilization
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- Forest Health
- Forest Inventory
- Forest Planning
- Nurseries
- Recreation & Social Perception
- Reforestation & Restoration
- Slash & Decomposition
- Thinning
Forest Products
- Lumber
- Miscellanous Products
- Sawmills
- Wood Treatment
Hydrology
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- Pollution
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Insects & Spiders
- Ants & Spiders
- Beetles
- Winged Insects
Logging
- Aerial Logging
- Cabled Logging
- Logging Mechanics
- Operator Dynamics
- Post-harvest Effects
Miscellaneous
- Cultural Studies & Excavation
- Floriculture
- Surveying & Aerial Photography
Trees
- Growth & Yield
- Pests & Pathogens
- Physiology & Genetics
- Seed Viability
Wildlife
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- Mammals
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- Vertebrate Ecology

2 records found

Space requirements and Yields for Free Growing Douglas-fir Trees

Purpose

What density should be carried throughout various phases of the rotation to produce maximum returns from an acre of land? 60 trees free of competition were measured for DBH, total height, age @ breast height, and crown diameter. Yield table constructed,

Project Start Date

Project End Date

1956-06-01

Related Publications

Brewer, James E. Space requirements and Yields for Free Growing Douglas-fir Trees. Master of Forestry Thesis, June, 1956, Oregon State College, School of Forestry, Corvallis, Oregon.

Project Categories

Trees
Growth & Yield

Keywords

space
spacing
requirements
requirement
yield
yields
growth
growing
douglas fir
douglas-fir
pseudotsuga menziesii
wolf
open-grown
wolfy
open
density
maximum
optimal
return
returns
rotation
rotations
max
James Brewer

Additional Information

Currently Active

No

Agency

OSC- Forestry

Project Type

Research

Research Forest

N/A

Researcher

Brewer, James E.

Role

PI

Collaborators

N/A

Debug Fields

Fields that will be removed when going live.

Import Unique ID

52

Project ID

52

Maximum Taxol yields in Taxus Brevifolia

Purpose

1) Quantitative and qualitative analysis of taxol and taxol derivatives from needles and bark of mature yew trees to determine if phenology, environmental conditions or penetic difference affect taxol production. 2) Cultural treatments (hedging and bran

Project Start Date

1990-09-20

Project End Date

Related Publications

N/A

Project Categories

Forest Products
Miscellanous Products

Keywords

taxol
yews
pacific yew
taxus brevifolia
tree
trees
max
bark
phenology
penetic
hedging
hedge
Nan Vance
Rick Kelsey

Additional Information

Currently Active

Yes

Agency

Forest Science OSU & PNW Research Station

Project Type

Research

Research Forest

N/A

Researcher

Vance, Nan

Role

PI

Collaborators

Kelsey, Rick

Debug Fields

Fields that will be removed when going live.

Import Unique ID

293

Project ID

293