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Autor: Cole, D.N.

Recreation use of the National Wilderness Preservation System has steadily increased since passage of the Wilderness Act in 1964. People are recreating in designated wilderness more than ever. Although the size of the National Wilderness Preservation System has greatly increased since 1964, many ...


Cole, D.N.[Wilderness recreation use trends, 1965 through 1994]Wilderness recreation use trends, 1965 through 1994
Clary, W.P.Dudley, J.G.Kinney, J.W.Saab, V.A.Shaw, N.L.Smithman, L.C.[Response of a depleted sagebrush steppe riparian system to grazing control and woody plantings]Response of a depleted sagebrush steppe riparian system to grazing control and woody plantings
Bentz, B.J.Logan, J.A.Powell, J.A.[Localized spatial and temporal attack dynamics of the mountain pine beetle in lodgepole pine]Localized spatial and temporal attack dynamics of the mountain pine beetle in lodgepole pine

Douglas-fir seedlings on the Arcata Resource Area, Bureau of Land Management, U.S. Department of the Interior, in central coastal California, were released by chain sawing and grubbing competing vegetation around them at different frequencies (0, 2, and 3 grubbings) over a 5-year period. After 5 ...


McDonald, Philip M.Fiddler, G.O.Harrison, H.R.[Repeated manual release in a young plantation: effect on douglas-fir seedlings, hardwoods, shrubs, forbs, and grasses]Repeated manual release in a young plantation: effect on douglas-fir seedlings, hardwoods, shrubs, forbs, and grasses

The density and development of greenleaf manzanita, snowbrush, goldenbush (rabbitbrush), and graminoids were evaluated in a young California red fir plantation in northern California from 1986 through 1995. Manual grubbing and herbicides created treatment regimes that lasted for 3 to 6 years and ...


McDonald, Philip M.Fiddler, G.O.[Treatment duration and time since disturbance affect vegetation development in a young California red fir plantation]Treatment duration and time since disturbance affect vegetation development in a young California red fir plantation

A 12-year-old ponderosa pine plantation on the Tahoe National Forest in northern California was mechanically treated with a Hydro-Ax in an attempt to increase the survival and growth of the planted seedlings. Other release methods were not feasible because the shrubs in the mixed-shrub community ...


Fiddler, G.O.McDonald, Philip M.[Mechanical and Chemical Release in a 12-Year-Old Ponderosa Pine Plantation]Mechanical and Chemical Release in a 12-Year-Old Ponderosa Pine Plantation
Leaf, C.F.Alexander, R.R.[Simulating timber yields and hydrologic impacts resulting from timber harvest on subalpine watersheds]Simulating timber yields and hydrologic impacts resulting from timber harvest on subalpine watersheds
Gary, H.L.[Watershed management problems and opportunities for the Colorado Front Range ponderosa pine zone: the status of our knowledge]Watershed management problems and opportunities for the Colorado Front Range ponderosa pine zone: the status of our knowledge
Leaf, C.F.[Watershed management in the Rocky Mountain subalpine zone: the status of our knowledge]Watershed management in the Rocky Mountain subalpine zone: the status of our knowledge

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