Thesis
Impacts of log jam installation on hyporheic exchange and nutrient uptake in a 4th order Washington stream
Washington State University
Master of Science (MS), Washington State University
2015
Handle:
https://hdl.handle.net/2376/102954
Abstract
Hyporheic exchange in streams is important for mediating biogeochemical processes and providing habitat for hyporheic organisms. Habitat restoration using engineered log jams is a common practice to improve channel complexity and fish habitat, and can also impact hyporheic exchange and nutrient uptake in rivers. I examined the impact of log jam installation on hyporheic exchange and nutrient uptake for 1 month before and 3 months after log installation in a restored study reach and an unrestored upstream reference reach using a before after control impact (BACI) design. I calculated average specific discharge between surface and hyporheic waters using piezometers and ambient nitrogen uptake metrics using the tracer additions for spiraling curve characterization (TASCC) method. My results indicate that an increase in specific discharge was associated with log jam installation in the study reach, and that natural or methodological variability in calculated uptake metrics is higher than changes caused by log jam installation.
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Details
- Title
- Impacts of log jam installation on hyporheic exchange and nutrient uptake in a 4th order Washington stream
- Creators
- Joseph Michael Parzych
- Contributors
- Alexander Kent Fremier (Degree Supervisor)
- Awarding Institution
- Washington State University
- Academic Unit
- Environment, School of the (CAHNRS)
- Theses and Dissertations
- Master of Science (MS), Washington State University
- Publisher
- Washington State University; [Pullman, Washington] :
- Identifiers
- 99900525165201842
- Language
- English
- Resource Type
- Thesis