Natural Resources and Conservation Commons^™

Seed Invasion Filters And Forest Fire Severity, Tom R. Cottrell, Paul F. Hessburg, Jonathan A. Betz

Biology Faculty Scholarship

Forest seed dispersal is altered after fire. Using seed traps, we studied impacts of fire severity on timing of seed dispersal, total seed rain, and seed rain richness in patches of high and low severity fire and unburned Douglas-fir (Pseudotsuga menziesii) forests in the Fischer and Tyee fire complexes in the eastern Washington Cascades. Unburned plots had the lowest average seed production. The high severity fire patches in the Fischer Fire Complex had a higher total seed production than low severity fire patches of the same complex. At the Tyee Fire Complex, the total seed production for each …

From Shrub Steppe To Fruit For The Nation: Historic Preservation Of Washington's Early Fruit Industry At Johnson Orchards In Yakima, Washington, Kelsey James Doncaster

All Master's Theses

Johnson Orchards in Yakima, Washington is an example of the fruit boom of the early 1900s in the irrigated Pacific Northwest. Its history is a part of the formative years of the apple industry in Washington State. Archival research of period documents, oral history interviews, historical photographs, and current on-site evaluations were viewed through a historic context statement were used to identify and assess properties at Johnson Orchards that would be eligible for listing on the National Register of Historic Places. The historic context statement for the Johnson Orchards property can be used for other historic buildings, landscapes or structures …

Conservation And Restoration Of Pine Forest Genetic Resources In México, C. Sáenz-Romero, Amy E. Snively, R. Lindig-Cisneros

Student Published Works

Deforestation rates in México are about 670,000 ha/year. This threatens the richness of forest genetic resources in México, causing the disappearance of locally adapted populations and rare and endangered pine species. México is one of the six megadiverse countries in the world, with half of the world’s Pinus species. Pinus is one of the most economically and ecologically important forest genera in México. We suggest that delineation of seed zones and the establishment of a network of Forest Genetic Resource Conservation Units (FGRCUs), linked with forest management and ecological restoration programs will protect this valuable resource. We estimate that FGRCUs …

Tracks In The Woods: Identifying And Evaluating Historic Logging Railroad Systems Within The Mt. Baker-Snoqualmie National Forest, Carol Taylor Hearne

All Master's Theses

The Sauk River Lumber Company (SRLC) operated in western Washington's Sauk River valley between 1922 and 1954. Impacts made on the landscape during that time can still be identified. Archival research, oral history interviews and archaeological fieldwork were undertaken to identify and evaluate the many landscape features associated with the SRLC's timber harvest activities. The systematic identification and documentation of this single company's logging operations and the features that resulted from those operations can be used to assist cultural resource managers facing the same task elsewhere. Maps, diagrams, and photographs are included to provide resource managers with basic tools and …

Sagebrush (Artemisia Tridentata) Restoration In Altered Sage Grouse (Centrocercus Urophasianus) Habitat Of The Yakima Training Center In Central Washington, Margaret Ann Pounds

All Master's Theses

The restoration of sagebrush at the Yakima Training Center was studied because it was determined that military training was altering the condition of sage grouse habitat, potentially having a negative impact on the sage grouse population of the installation. The management of sage grouse and its habitat on YTC are a priority for the U.S. Army. The objectives of this study were to identify the issues relevant to sage grouse and the restoration of its habitat on the training facility, to investigate sagebrush restoration techniques, and to make management recommendations based upon this study. Results of this study indicate that …

Effect Of Deforestation By The Douglas-Fir Tussock Moth On The Quality Of Streamflow And Stream Productivity Parameters, Martin Ed Hicks

All Master's Theses

The purpose of this study was to determine if deforestation by a recent outbreak of Douglas-fir tussock moth and logging of such deforested timber has had any effect on stream water quality. To determine this, seven different watersheds of three types were examined. The three types were: undamaged watersheds as controls, watersheds with deforestation and watersheds with deforestation where the timber was subsequently logged. Twenty-four variables were used to determine water quality. Included were seven biological and seventeen chemical variables.

In general, the results indicate only seasonal fluctuations and differences between watersheds due to inherent properties of individual watersheds. Increased …

Water Resources Of Tacoma, Washington, Richard Martin Glaser

Graduate Student Research Papers

This study explores the fresh water and hydroelectricity resources of the City of Tacoma, Washington. The history and development of the water supply and hydroelectric facilities is examined. One can see that the development of the water resources has been directly affected by the growth in population and industry and that the nearness to the city of development sites has been an aid in this development. With the amount of water available at present and the increase in hydro-electric facilities during this decade, the future outlook for Tacoma in the field of water resources seems bright.