Showing items related by title, author, creator and subject.

• Prescribed fire opportunities in grasslands invaded by douglas-fir: a state-of-the-art guidelines 

  Gruell, G.E.; Brown, James K.; Bushey, C.L. (USDA Forest Service. Intermountain Research Station, 1986)

  Provides information on use of prescribed fire to enhance productivity of bunchgrass ranges that have been invaded by Douglas-fir. Six vegetative "situations" representative of treatment opportunities most commonly encountered ...
• Age-class structure of old growth ponderosa pine / douglas-fir stands and its relationship to fire history 

  Arno, Stephen F.; Hartwell, M.G.; Scott, J.H. (USDA Forest Service. Intermountain Research Station, 1995)
• A method for constructing site index curves from height-age measurements applied to douglas-fir in the southwest 

  Edminster, C.B.; Mahiasen, R.L.; Olsen, W.K. (USDA Forest Service. Rocky Mountain Forest and Range Station, 1991)