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Filtering by: Creator Rasmussen, Jay Advisor Lajtha, Kate

Reactive polyphenols and dissolved nutrients in a nitrogen-limited headwater catchment, western Cascades, Oregon, USA

Creator:

Rasmussen, Janet K.

Abstract:

In undisturbed N-limited forested catchments, DON may represent over 90% of the total N lost in streams. Some ecologists have suggested that plant-derived reactive polyphenols may be responsible for DON binding and transport because polyphenol-protein complexes are known to precipitate out of solution, bind to mineral surfaces or organic matter...

Resource Type:

Masters Thesis

Full Text:

THESIS OF Janet K. Rasmussen for the degree of Master of Science in Water Resource Science
The imprint of coarse woody debris on soil biological and chemical properties in the western Oregon Cascades

Creator:

Spears, Julie D. H.

Abstract:

The abundance and spatial heterogeneity of coarse woody debris (CWD) on the forest floor is a prominent feature of Pacific Northwest (PNW) forest ecosystems. The effect of CWD on soil solution chemistry, nutrient cycling and availability, soil physical structure and formation of soil organic matter, however, remains unknown. Therefore, studies...

Resource Type:

Dissertation

Full Text:

statistics rock), TJ White, Nadine Wade, Emilie Grossman, Jay Sexton, Kristin Strauss, Teachers in the Woods
Post-harvest establishment influences ANPP, soil C and DOC export in complex mountainous terrain

Creator:

Peterson, Fox S.

Abstract:

The link between aboveground net primary productivity (ANPP) and resource gradients generated by complex terrain (solar radiation, nutrients, and moisture) has been established in the literature. Belowground ecosystem stocks and functions, such as soil organic carbon (SOC), dissolved organic carbon (DOC), and belowground productivity have also been related to the...

Resource Type:

Dissertation

Full Text:

for the work of several researchers at the USFS Forest Science Laboratory, especially Jay Sexton