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Filtering by: Creator O’Neil-Dunne, Jarlath P.M. Committee Member Noller, Jay

Sediment transfer and storage in headwater basins of the Oregon Coast Range : transit times from 14C dated deposits

Creator:

Underwood, Emily F.

Abstract:

In steep headwater basins of the Oregon Coast Range (OCR), debris flows episodically deliver material from low-order tributary basins to larger catchments. Much of this material is stored in valleys and gradually removed by fluvial processes. Quantifying the transfer of material from hillslopes to mainstem channels is essential in understanding...

Resource Type:

Masters Thesis

Full Text:

the fluvial system (Dietrich and Dunne, 1978, May and Gresswell, 2004). In these basins, sediment
Interactions between ecosystem nitrogen and bedrock control long-term calcium sources in Oregon Coast Range forests

Creator:

Hynicka, Justin D.

Abstract:

Ecosystem nitrogen (N) supply strongly influences the availability and cycling of other essential nutrients in temperate forests, especially calcium (Ca). Short-term additions of N that exceed ecosystem demands often increase dissolved nitrate fluxes and decrease soil pH, which can stimulate soil Ca loss. However, the long-term effects of high N...

Resource Type:

Masters Thesis
Ecohydrological mediation of water budget partitioning and time scales of subsurface flow in a seasonally semi-arid grassland

Creator:

Pangle, Luke A.

Abstract:

Understanding how the interactions and feedbacks between plant function, climate, and soils ultimately affects the terrestrial water balance and subsurface flow processes is major challenge in scientific hydrology. This dissertation summarizes the findings of a manipulative climate warming experiment, an observational field study that utilized stable-isotope tracers, and associated modeling...

Resource Type:

Dissertation

Full Text:

, 1974; Milly, 1994; Milly and Dunne, 2002], based on the thermodynamics of latent and sensible heat