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Economics of Thinning Stagnated Ponderosa Pine Sapling Stands in the Pine-grass Areas of Central Washington
Robert W. Sassaman
, Justin Gardner Smith
· 1973
Silviculture of Ponderosa Pine in the Pacific Northwest: The State of Our Knowledge
James Willis Barrett
· 1979
Growth of Ponderosa Pine Thinned to Different Stocking Levels in Central Oregon: 30-year Results
P. H. Cochran
, James Willis Barrett
· 1999
Pruning of Ponderosa Pine: Effect on Growth
James Willis Barrett
· 1968
Seed Production of Central Oregon Ponderosa and Lodgepole Pines
Walter G. Dahms
· 1975
Twenty-year Growth of Ponderosa Pine Saplings Thinned to Five Spacings in Central Oregon
James Willis Barrett
· 1982
Latest Results from the Pringle Falls Ponderosa Pine Spacing Study
James Willis Barrett
· 1973
Large-crowned Planted Ponderosa Pine Respond Well to Thinning
James Willis Barrett
· 1972
Twenty-year Growth of Thinned and Unthinned Ponderosa Pine in the Methow Valley of Northern Washington
James Willis Barrett
· 1981
Financial Precommercial Thinning Guides for Northwest Ponderosa Pine Stands
Robert W. Sassaman
, James Willis Barrett
, Asa D. Twombley
· 1977
