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Filtering by: Subject Whiteleaf manzanita -- Oregon -- Growth

Growth of plantation conifers and whiteleaf manzanita in southwest Oregon

Creator:

Hanson, Thomas J. (Thomas Jeffrey)

Abstract:

Southwest Oregon presents an environment of hot dry summers, cool moist winters, and rocky, shallow soils. The establishment of conifer plantations in this region presents challenging problems for initial seedling survival and subsequent growth. Three areas of concern include early conifer growth after seedling establishment, growth of competing hardwoods within...

Resource Type:

Dissertation
Survival and growth of Douglas-fir and ponderosa pine during eight years of whiteleaf manzanita and herb competition in southwest Oregon

Creator:

Funez, Atilio Ortiz

Abstract:

This thesis examines the 8-year growth trend of Douglas-fir (Pseudotsuga menziesii (mirb.)Franco), ponderosa pine (Pinus ponderosa Dougl. ex laws.), and whiteleaf manzanita (Arctostaphylos viscida Parry). Manzanita stands ranging from 1700/ha to 27000/ha density were grown among mixed conifers of the same age, which were planted in 1981 at 250x250 cm...

Resource Type:

Masters Thesis
Chaparral history, dynamics, and response to disturbance in southwest Oregon : insights from age structure

Creator:

Duren, Olivia

Abstract:

Fuels management on Bureau of Land Management lands in SW Oregon, USA, is motivated by the needs to reduce fire hazard and restore ecosystems thought to be impacted by fire suppression. Chaparral is one of the most characteristic vegetation communities of SW Oregon's interior valleys, and extensive acreages within this...

Resource Type:

Masters Thesis

Full Text:

relatively high. Chaparral of buckbrush ceanothus (C. cuneatus) and whiteleaf manzanita (A. viscida) is