Robert O. Curtis

Identifiers

Open LibraryOL1447611A

Top Subjects

Douglas fir (6)
Trees -- Spacing -- Oregon (5)
Trees -- Washington (State) -- Growth (5)
Forest thinning -- Washington (State) (5)
Forest thinning -- Oregon (5)
Trees -- Cascade Range -- Growth (5)
Trees -- Spacing -- Washington (State) (5)

Books by Robert O. Curtis

Total count: 26

Comparative site indices for northern hardwoods in the Green Mountains of Vermont

Northeastern Forest Experiment Station, Forest Service, U.S. Dept. of Agriculture1962-01-01
A formula for the Douglas-fir total cubic-foot volume table from bulletin 201

Pacific Northwest Forest and Range Experiment Station, U.S. Dept. of Agriculture1966-01-01
A comparison of site curves for Douglas-fir

Pacific Northwest Forest and Range Experiment Station, U.S. Dept. of Agriculture1966-01-01
A method of estimation of gross yield of Douglas-fir

Society of American Foresters1967-01-01
Volume and taper tables for red alder

Pacific Northwest Forest and Range Experiment Station, U.S. Dept. of Agriculture, Forest Service1968-01-01
Estimating D.B.H. [diameter at breast height] from stump diameters on second-growth Douglas-fir

Dept. of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station1977-01-01
Estimating D.B.H. from stump diameters on second-growth Douglas-fir

Dept. of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station1977-01-01
A new stand simulator for coast Douglas-fir: DFSIM user's guide

U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station1981-01-01
A simple index of stand density for Douglas-fir

USDA Forest Service]1982-01-01
Procedures for establishing and maintaining permanent plots for silvicultural and yield research

U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station1983-01-01
Levels-of-growing-stock cooperative study in douglas-firreport no. 8-the LOGS study : twenty-year results

U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station1986-01-01
Height growth and site index curves for western white pine in the Cascade Range of Washington and Oregon

U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station1990-01-01
Levels-of-growing-stock cooperative study in Douglas-firthe Iron Creek Study, 1966-89

U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station1994-01-01
Extended rotations and culmination age of coast Douglas-firold studies speak to current issues

U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station1995-01-01
True fir-hemlock spacing trialsdesign and first results

U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station2000-01-01
Permanent-plot procedures for silvicultural and yield research

U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station2005-01-01
True fir spacing trials10-year results

U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station2008-01-01
True fir spacing trials10-year results

U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station2008-01-01
True fir spacing trials10-year results

U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station2008-01-01
True fir spacing trials10-year results

U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station2008-01-01
Levels-of-growing-stock cooperative study in Douglas-firreport no. 19-the Iron Creek study, 1966-2006

United States Dept. of Agriculture, Forest Service, Pacific Northwest Research Station2009-01-01
Levels-of-growing-stock cooperative study in Douglas-firreport no. 18-Rocky Brook, 1963-2006

United States Dept. of Agriculture, Forest Service, Pacific Northwest Research Station2009-01-01
Levels-of-growing-stock cooperative study in Douglas-firreport no. 19-the Iron Creek study, 1966-2006

United States Dept. of Agriculture, Forest Service, Pacific Northwest Research Station2009-01-01
Levels-of-growing-stock cooperative study in Douglas-firreport no. 19-the Iron Creek study, 1966-2006

United States Dept. of Agriculture, Forest Service, Pacific Northwest Research Station2009-01-01
True fir spacing and yield trials20-year update

U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station2013-01-01
A comparison of site curves for Douglas-fir