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Creator:: Meyerhoff, Roger Dean
Abstract:: There is evidence that recent ecological changes in lakes and their watersheds can be detected from analysis of lake sediments. This study was initiated to correlate changes in some sediment characteristics of four Oregon lakes with past cultural developments of the lakes and their watersheds. The lakes chosen for this...
Resource Type:: Masters Thesis
Full Text:: appreciation to Drs. Gerald E. Davis, Gary L. Larson, and H.K. Phinney who served as members of my graduate

Creator:: Ezenwa, Matthew Ikechuku Sunday
Abstract:: Vegetation as a soil-forming factor was studied under forest transition and grass while attempting to keep other soil forming factors constant in the western part of the Willamette Valley, Oregon. The physiographic units consist chiefly of the interior foothills and slopes formed from an old basaltic flow with some interspersed...
Resource Type:: Masters Thesis
Full Text:: the author to this goal and beyond; to Dr. G. H. Simonson for intro- ducing me to the soils of the

Creator:: Dübbern de Souza, Francisco Humberto
Abstract:: This study was undertaken to obtain information on the quality of grass seed when windrowed at the high moisture levels necessary for obtaining maximum yields. A secondary goal was to monitor moisture and temperature fluctuations in the windrow and to relate their effects to development and deterioration of the seed....
Resource Type:: Masters Thesis
Full Text:: friendship and collaboration; Dr. K. L. Chambers, Dr. R. Highsmith, and Dr. H. W. Youngberg, for serving

Creator:: Miller, Richard F.
Abstract:: The objectives of this study were to evaluate environmental factors influencing use of several plant communities by cattle, elk and deer; determine under story production by plant species and the amount utilized by cattle, elk and deer in certain plant communities; evaluate the interactions of range use between cattle, elk...
Resource Type:: Masters Thesis
Full Text:: were most helpful throughout the study. I also wish to acknowledge Dr. Alma H. Winward for his criti

Creator:: Masias Echegaray, Juan Antonio
Abstract:: Detailed bathymetric survey data were collected along the Peruvian continental margin and were compiled by the author and other investigators to construct a new bathymetric map for the area between 6° to 18°S latitude. Based on this map and individual bathymetric profiles, the continental shelf topography is essentially flat. Four...
Resource Type:: Masters Thesis
Full Text:: , Drs. K. Oles, S. H. Johnson, and E. J. Dasch. Roger Prince and William Schweller provided me with

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