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Filtering by: Subject Nitrogen -- Fixation -- Oregon -- Oregon Coast Range Advisor Perakis, Steven S. File Format application/pdf

Non-linear nitrogen dynamics and calcium depletion along a temperate forest soil nitrogen gradient

Creator:

Sinkhorn, Emily R.

Abstract:

Understanding how N availability influences base cation stores is critical for long-term ecosystem sustainability. Indices of nitrogen (N) availability and the distribution of nutrients in plant biomass, soil, and soil water were examined across ten young, unpolluted Douglas-fir (Pseudotsuga menziesii) stands in the Oregon Coast Range spanning a three-fold soil...

Resource Type:

Masters Thesis

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Douglas-fir (Pseudotsuga menziesii) stands in the Oregon Coast Range spanning a three-fold soil N
Tree species-soils relationships in old-growth forests of the Oregon Coast Range

Creator:

Cross, Alison

Abstract:

Tree species directly and indirectly affect soil nutrient cycles. I sought to characterize soils and foliage associated with four common canopy tree species (Douglas-fir, western hemlock, western redcedar, and bigleaf maple) in mixed-species old-growth forests of the Oregon Coast Range and to determine whether and how soils differ among the...

Resource Type:

Masters Thesis

Full Text:

the Oregon Coast Range. Abstract approved
Four centuries of soil carbon and nitrogen change after severe fire in a Western Cascades forest landscape

Creator:

Giesen, Thomas William

Abstract:

Fire is a major disturbance process in many forests. Long-term studies of the biogeochemical effects of fires, especially on soils, are very rare. Consequently, long-term effects of fire on soils are often hypothesized from short-term effects. In a chronosequence study, I studied 24 western Cascades (Oregon) forest stands thought to...

Resource Type:

Masters Thesis

Full Text:

losses from severe slash burns on a highly productive Oregon Coast range site of 150 kg N/ha in

ScholarsArchive@OSU

Non-linear nitrogen dynamics and calcium depletion along a temperate forest soil nitrogen gradient

Tree species-soils relationships in old-growth forests of the Oregon Coast Range

Four centuries of soil carbon and nitrogen change after severe fire in a Western Cascades forest landscape

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