Index Catalog // ScholarsArchive@OSU

The effect of grazing interval on forage quality and production of meadow foxtail

Creator:: Wenick, Jess J.
Abstract:: For the last fifty years, meadow foxtail (Alopecurus pratensis L.) has been invading native flood meadows throughout the Harney Basin in southeastern Oregon. The expansion of this grass species has been the result of its broad climatic requirements and ability to withstand drought while thriving in saturated soil conditions for...
Resource Type:: Masters Thesis
Full Text:: Burns Oregon, were different in plant composition than they are today. In studies done by Cooper (1956

Vegetation classification for the badger allotment, Mt. Hood National Forest

Creator:: Williams, Clinton K.
Abstract:: More than 200 sites between 500 and 2000 meters elevation were examined utilizing a reconnaissance sampling technique for a portion of the eastern slopes of the northern Oregon Cascade Mountains. Twelve different forested plant communities were described with data on vegetation, soils and topography. A map of their distribution and...
Resource Type:: Dissertation

Soil and understory vegetation characteristics of a tractor-logged forest in eastern Oregon

Creator:: Snider, Michael Duane
Abstract:: A 1.5 ha mixed conifer stand in the Blue Mountains of Oregon was intensively examined to assess the impact of logging disturbance on soils and herbaceous vegetation. Sampling was conducted six years after much of the timber overstory was removed in a shelterwood cut and yarded by crawler tractor. A...
Resource Type:: Masters Thesis
Full Text:: northeastern Oregon, Edgerton (1973) found total plant cover on two partially cut mixed conifer sites was

Use of livestock to improve the quality of elk winter range forage in northeastern Oregon

Creator:: Clark, Patrick Eugene
Abstract:: The effects of late spring defoliation on the winter forage quality of bluebunch wheatgrass (Agropyron spicatum [Pursh] Scribn. & Smith), Idaho fescue (Festuca idahoensis Elmer) and elk sedge (Carex geyeri Boott) and the response of wintering Rocky Mountain elk (Cervus elaphus nelsoni Bailey) to changes in winter range forage quality...
Resource Type:: Dissertation
Full Text:: Forage in Northeastern Oregon AN ABSTRACT OF THE DISSERTATION OF Patrick Eugene Clark for the degree

Plant communities and habitat types of the Meadow Creek experimental watershed

Creator:: Ganskopp, David C. (David Conrad)
Abstract:: The objectives of this study were: 1) to identify and map the experimental area of Meadow Creek watershed by existing vegetation, and 2) to identify and map the experimental area of Meadow Creek watershed by habitat types. The classification system adopted for this study was based on the habitat type...
Resource Type:: Masters Thesis

Infiltration, soil erosion, nitrogen loss and soil profile characteristics of Oregon lands occupied by three subspecies of Artemisia tridentata

Creator:: Swanson, Sherman R.
Abstract:: Infiltration, soil erosion, nitrogen loss and soil profile characteristics were measured on 36 sites representing land occupied by Artemisia tridentata ssp. tridentate, wyomingensis, and vaseyana. Infiltration, soil erosion, and nitrogen loss were strongly correlated but highly variable. Soil loss, but not infiltration or nitrogen loss was significantly different between subspecies....
Resource Type:: Dissertation
Full Text:: Profile Characteristics of Oregon Lands Occupied by Three Subspecies of Artemisia tridentata Sherman R

Understory competition for resources in Pinus ponderosa forests of northeastern Oregon

Creator:: Riegel, Gregg M.
Abstract:: The objective of this research was to determine which environmental resources, light, water, and nutrients, control understory plant production and composition in a Pinus ponderosa forest in northeastern Oregon. A split-plot experimental design, with three blocks, four treatments, and 44 plots, was established in the summer of 1985. Twenty plots...
Resource Type:: Dissertation
Full Text:: understory plant production in a Pinus ponderosa forest in northeastern Oregon. A split-plot experimental

Influence of cattle grazing and forage seeding on establishment of conifers in southwest Oregon

Creator:: Alejandro-Castro, Mabel
Abstract:: The ability of controlled livestock grazing, in combination with seeding of palatable forages, to reduce understory competition and enhance conifer establishment, was evaluated during 1985 and 1986, on two adjacent sites in southwestern Oregon. In 1984, Site 1 was clearcut and broadcast burned to remove slash, and Site 2 was...
Resource Type:: Masters Thesis
Full Text:: establishment of conifers in southwest Oregon AN ABSTRACT OF THE THESIS OF Mabel Alejandro-Castro for the

Standing crop dynamics and productive potential of southwestern Oregon rangelands

Creator:: White, G. R.
Resource Type:: Masters Thesis
Full Text:: in the interior valleys of southwest Oregon from perennial to annual dominated plant communities

Response of Artemisia tridentata ssp. wyomingensis and Stipa thurberiana to nitrogen amendments

Creator:: Wang, Chien-kuo
Abstract:: The effect of nitrogen on influencing the competitive balance between a shrub, Artemisia tridentata ssp. wyolningensis (ARTRW) and a perennial grass Stipa thurberiana (STTH) in a sagebrush steppe community was determined. Nitrogen levels were altered on 5x5 in plots by applying 4.5 gun2 of nitrogen in the form of ammonium...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

The effect of grazing interval on forage quality and production of meadow foxtail

Vegetation classification for the badger allotment, Mt. Hood National Forest

Soil and understory vegetation characteristics of a tractor-logged forest in eastern Oregon

Use of livestock to improve the quality of elk winter range forage in northeastern Oregon

Plant communities and habitat types of the Meadow Creek experimental watershed

Infiltration, soil erosion, nitrogen loss and soil profile characteristics of Oregon lands occupied by three subspecies of Artemisia tridentata

Understory competition for resources in Pinus ponderosa forests of northeastern Oregon

Influence of cattle grazing and forage seeding on establishment of conifers in southwest Oregon

Standing crop dynamics and productive potential of southwestern Oregon rangelands

Response of Artemisia tridentata ssp. wyomingensis and Stipa thurberiana to nitrogen amendments

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