Ponderosa pine - - Growth. ;<br> Mountain pine beetle.
Ten-year diameter and basal area growth were determined for partially cut stands and 4 locations. Average diameters in the partially cut plots generally increase by 1 inch of more, while average diameter in the uncut controls increase by 0.9 inches...
Pinyon pines -- United States ;<br> Junipers -- United States ;<br> Pinyon pines -- United States.
Two probability proportional to size (p.p.s.) sampling methods have been adapted for use in pinyon-juniper woodlands. Procedures are described for estimating biomass, stand basal area, canopy cover, tree density, and growth rates using either point...
Fire ecology - - West (U.S.) - - Computer simulation. ;<br> Prescribed burning - - West (U.S.) - - Computer simulation. ;<br> Forest fire - - Environmental aspects - - West (U.S.) - - Computer simulation.
A successional process model has been developed to simulate long-term stand dynamics in forests of the Northern Rockies. The model can be used to evaluate fire effects differences for various fire regimes, including prescribed burning at different...
Federal Assistance to Fight Indians?; Powerline Impact Report; Head-On Involves Seven; Powerlines: No Response to Tribe's Offer; Indian Policy Review Available; Rosebud Reservation Boundaries Decision; Negotiations Assure Fish and Waterfowl...
Leaders that develop from live limbs left on stumps in thinning operations must be removed if thinning goals are to be fully realized. A linear regression model was developed to relate the height of the lowest live limbs of lodgepole pine trees to...
Forest fires -- Yellowstone National Park Region. ; <br> Forest insects -- Yellowstone National Park Region. ; <br> Insect pests -- Yellowstone National Park Region. ; <br> Trees -- Diseases and pests -- Yellowstone National Park...
Permanent plots were established in the Greater Yellowstone Area (GYA) following the 1988 fires to determine response of bark beetles to fire-injured
conifers. Within 2 years (1989 and 1990), 67percent of the Douglas-fir had been infested by bark...