The consumptive water use of six cities in the Willamette
Basin of northwestern Oregon was evaluated for the period 1960-66.
Consumptive use ratios were obtained by analyzing data from monthly
water supply and sewage flow records. The average annual consumptive
use for the six cities was found to be 26...
This study originated with industry recognition of inadequate
flexibility in currently used procedures for grading, sizing, and
packaging fresh apples in North Central Washington. Field-run apples
are introduced into the process, and nearly all of the product must
be placed in a marketing package in the process. Portions of the...
The purpose of this study was to compare the effectiveness of
teaching high school health by team teaching and traditional teaching
methods. For this study 114 second-semester sophomore health
students from Centennial High School in Gresham, Oregon were
used, distributed in three health classes as a control group, utilizing
traditional...
The effect of competition on the brood survival of the Douglas fir
beetle Dendroctonus pseudotsugae Hopkins, in down or windthrown
Douglas-fir Pseudotsuga menziesii (Mirb.) Franco was studied in the
field and the laboratory. The investigation of the role of competition
in the population dynamics of the beetle had four objectives:...
This thesis presents a procedure to identify and evaluate forest
arterial and collector networks. The procedure identifies those
decision criteria important in evaluating both the arterial and
collector networks and the specific facilities identified on these
networks. The procedure incorporates the decision criteria and results
from network and facility analysis...
Biodiversity loss is of global concern, and is due in part to deforestation and high consumer demand for wood and wood products. The neotropical tree species Cedrela odorata (“Spanish cedar” or “cedro”) is economically valuable for its wood and faces threats of overexploitation. Due to strong similarities in wood features...