Flow rates are presented for Dimilin, Dylox 1.5, Orthene 75S, and Sevin 4-oil at five pressures and four temperatures using three standard T-jet nozzles. Physical properties of settling, density, and viscosity and handling characteristics are also...
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...
The relatively simple set of WINNOW procedures and computer programs for simulating and selecting one best silvicultural/managerial all-aged prescription from many alternatives is described. The selection basis may be sustained annual volume or...
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...
Fuelwood crops--United States ;<br> Oak--Economic aspects--United States
Samples of 90 trees in north-central Utah were examined to determine growth rates for Gambel oak.These growth data were used in an analysis to determine per-stem values of oak as residential fuelwood. Some oak stands in north-central Utah contain...
Ponderosa pine -- Disease and pest resistance -- Northwest, Pacific ;<br> Tree rusts -- Northwest, Pacific ;<br> Rust fungi -- Northwest, Pacific.
esponse to artificial inoculation by western gall rust. The northern inland populations were highly resistant. Only 28 percent of the seedlings had galls 39 months after inoculation. Three major resistant reactions were observed: no symptoms,...
Radio -- Transmitters and transmission -- Design and construction ;<br> Animal radio tracking ;<br> Wildlife monitoring -- Equipment and supplies.
Schematics are presented for a transmitter with an amplifier stage to increase receiving distance. Weight of the transmitter with one battery is 2 ounces, maximum battery life is 45 days, and maximum receiving distance is 2-1/2 miles.
The Scenic Beauty Estimation Method (SBE) provides quantitative measures of esthetic preferences for alternative wildland management systems. Extensive experimentation and testing with user, interest, and professional groups validated the method....
Concepts and processes for economic analysis of a rangeland development project are discussed. Various approaches to estimating the value of animal unit months of grazing use may be used. The actual method employed will depend on the analysis being...
This annotated bibliography of published literature on the beaver (Castor canadensis) contains 206 references to both technical and popular articles and covers a period from 1966 to 1986. Emphasis is on the Western United States and Canada. A...
Effects of several shading materials and methods of installation on greenhouse temperature, and on light intensity, distribution, and quality were evaluated. A synthetic fiber shade cloth installed outside produced lowest greenhouse temperatures....
Clearcutting -- Rocky Mountains Region -- Costs ;<br> Slash (Logging) -- Rocky Mountains Region -- Costs.
A model is presented for computing the costs of harvesting forest residues, based on several key characteristics of the residues and the logging area. Costs per unit are presented in tabular form for several alternative harvesting methods.
This proceedings is a product of the first comprehensive and international examination of Larix species of the world. It reports most of the papers and posters hat were presented at the International Symposium ""Ecology and Management of...
Thirty-four Populus biotechnology chapters, written by 85 authors, are comprised in 5 sections: 1) in vitro culture (micropropagation, somatic embryogenesis,
protoplasts, somaclonal variation, and germplasm preservation); 2) transformation and...
Research natural areas - - Idaho. ; Research natural areas - - Montana. ; Research natural areas - - North Dakota. ; Research natural areas - - South Dakota.
Since 1927, Federal land management agencies have been actively developing a system of Research Natural Areas (RNAs) on federally owned lands. The purpose of this guidebook is to make these areas known to the scientific community and thereby...
Presented are a model and an accompanying computer program that optimally locate landing areas for a helicopter logging operation.
Given a haul road, unit centroids, volumes of timber to be harvested, and helicopter operating parameters, landings...
The dollar and nondollar effects of alternative levels of residue utilization in mature lodgepole pine are compared. Net dollar returns were greater in conventional logging (removal of green sawlogs to a 6-inch top, with slash piled and burned)...
Symptoms induced by phytotoxic gases within conifer needles can be differentiated histologically from those causes by other abiotic agents including winter drying, drought, and salt. However, it is not possible to differentiate among symptoms...
Fire extinction - - Chemical systems. ;<br> Fire extinction - - Research.
Several fire retardants in current use were dropped from the Canadair CL-215 to determine drop height effects and for evaluation of the tank and gating system. Mathematical models for each retardant and load size were developed for predicting the...