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Filtering by: Subject Ponderosa pine -- Oregon -- Growth Subject Plant-water relationships -- Oregon

The expression of functional traits during seedling establishment in two populations of Pinus ponderosa from contrasting climates

Creator:

Kerr, Kelly L.

Abstract:

Vegetation patterns and species distributions are strongly linked to soil moisture regimes, and populations within a species from contrasting climatic regimes could exhibit differences in the degree to which certain functional traits related to establishment are expressed. Tree seedling survival is crucial for forest regeneration, and thus may be a...

Resource Type:

Masters Thesis

Full Text:

of ponderosa pine (Pinus ponderosa) from sites with contrasting climate regimes east (PIPOEAST) and
The effects of water and shade treatments on photosynthesis and root-rhizosphere respiration in young ponderosa pine

Creator:

Johnson, Theresa J.

Abstract:

Water treatments were applied to young ponderosa pine trees in the Eastern Cascades, Oregon during the 2003 growing season, and shade treatments were applied during the 2003 and 2004 growing seasons to understand how photosynthesis and soil respiration, particularly the root/rhizosphere fraction (R[subscript rrh]), would respond to increased moisture availability...

Resource Type:

Masters Thesis