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Heat as a factor in germination of seeds of Ceanothus velutinus var. laevigatus T. & G.

Creator:: Gratkowski, H.
Resource Type:: Dissertation
Full Text:: possible. First, the Pacific Northwest Forest and Range Experiment Station of the B*. S. Forest Service

Heat as a factor in germination of seeds of Ceanothus velutinus var. laevigatus T. & G.

Creator:: Gratkowski, H.
Resource Type:: Dissertation
Full Text:: who have helped make this possible. First, the Pacific Horthwest Forest and Range Experiment Station

Contributions to the plant ecology of the Oregon coastal sand dunes

Creator:: Wiedemann, Alfred M.
Abstract:: Sand dunes are found along the coasts of most of the large land masses of the world. Because of their proximity to man and his activities, the maritime sand dunes of Europe, particularly Germany, France, Holland and Scandinavia, have the longest history of stabilization activities and botanical investigation. There are...
Resource Type:: Dissertation
Full Text:: Hebo Ranger Station, Hebo, Oregon; and at the Smith River Ranger Station, Gardiner, Oregon. Special

An analysis of montane forest vegetation on the east flank of the central Oregon Cascades

Creator:: West, Neil E.
Abstract:: Montane forest vegetation as it occurs on the east flank of the central Oregon Cascades has provided excellent conditions for a "natural experiment" in the use of various methodologies in studying vegetational distribution. This "experiment" has reflected on some theory and practice for the discipline of plant synecology. Detailed descriptions,...
Resource Type:: Dissertation
Full Text:: given station (40, p. 141). This is done in Table I where these comparisons are made for the Sisters

Spatial and developmental patterns of the vegetation of Black Butte, Oregon

Creator:: Sherman, Robert James
Abstract:: Black Butte presents a unique natural laboratory for ecological study. It is a volcanic cone of uniform configuration located in the rain shadow on the east flank of the Oregon Cascades. Soils are of very recent origin with no obvious development of horizons. Physical and chemical analysis revealed little dissimilarity...
Resource Type:: Dissertation
Full Text:: DeMoy and Mr. Gerald Benson of the Sisters U. S. Forest Service Ranger Station. The information gained

Soil moisture depletion trends under five plant species present on the Douglas-fir clear-cuts of Mary's Peak, Oregon

Creator:: Drew, Stephen Ernest
Abstract:: Soil moisture depletion trends under five plant species growing on the clear-cuts of the Marys Peak Watershed near Corvallis, Oregon, were followed during the summers of 1963 and 1964. The species were Holcus lanatus, Lotus crassifolius var. subglaber, Gaultheria shallon, Berberis nervosa, and Acer circinatum; and were dominant plants of...
Resource Type:: Masters Thesis
Full Text:: University Forest Research Laboratory and also to the Oregon Agri- cultural Experiment Station for

Lichen distribution in Oregon coastal dune communities

Creator:: Leuthner, Shirley Mae
Abstract:: Distribution of lichens was studied at seven coastal dune sites in Oregon. Lichens were sampled in the dry stable, dry meadow, meadow, rush meadow, marsh, shrub and forest deflation plain communities. Observations were made of the standing water in the marsh community. Quantitative measurements were made of the percent organic...
Resource Type:: Masters Thesis

Fire history of the ponderosa pine forests of the Warm Springs Indian Reservation, Oregon

Creator:: Soeriaatmadja, Roehajat Emon, 1936-
Abstract:: Fire has played a prominent role in the development and character of the ponderosa pine forests in western North American. Its records are written in the scars of trees that have survived the fire. Careful studies of these fire-scars may be used as a means of reconstructing the fire history...
Resource Type:: Dissertation

Spatial and chronological patterns of Purshia tridentata as influenced by Pinus ponderosa overstory

Creator:: Sherman, Robert James
Abstract:: Twelve sites of uniform topography and soils were selected in the Pinus ponderosa/Purshia tridentata/Festuca idahoensis Association. These sites were located in the rain shadow on the east flank of the Oregon Cascades. A fire history in the form of fire scars on ponderosa pine was available for nine of these...
Resource Type:: Masters Thesis
Full Text:: Benson of the Sisters Ranger Station. The informa- tion gained from discussions with these men

Distribution of understory species in relation to maximum and minimum tree influence in the montane forest of the Central Oregon Cascades

Creator:: Robinson, Andrew Frederick, Jr.
Abstract:: Twenty sites of uniform topography and soil were select ed in the montane forest found on the East flank of the Central Oregon Cascades. These sites were located along a vegetational gradient composed of five plant communities: Abies/Pachistima, Pinus/Ceanothus, Pinus Arctostaphylos-Purshia, Pinus/Purshia/Festuca, and Juniperus Festuca. An attempt was made to...
Resource Type:: Dissertation
Full Text:: and highs of 95 degrees F at the .Sisters station (West, 1964). Disturbance from livestock grazing

ScholarsArchive@OSU

Heat as a factor in germination of seeds of Ceanothus velutinus var. laevigatus T. & G.

Heat as a factor in germination of seeds of Ceanothus velutinus var. laevigatus T. & G.

Contributions to the plant ecology of the Oregon coastal sand dunes

An analysis of montane forest vegetation on the east flank of the central Oregon Cascades

Spatial and developmental patterns of the vegetation of Black Butte, Oregon

Soil moisture depletion trends under five plant species present on the Douglas-fir clear-cuts of Mary's Peak, Oregon

Lichen distribution in Oregon coastal dune communities

Fire history of the ponderosa pine forests of the Warm Springs Indian Reservation, Oregon

Spatial and chronological patterns of Purshia tridentata as influenced by Pinus ponderosa overstory

Distribution of understory species in relation to maximum and minimum tree influence in the montane forest of the Central Oregon Cascades

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