CF016

Solute dynamics in the hyporheic zone of a headwater stream in Watershed 1 at the Andrews Experimental Forest, 2016-2018

• Creator(s): Steven M. Wondzell, Satish Prasad Serchan
• PI(s): Steven M. Wondzell
• Originator(s): Satish Prasad Serchan
• Other researcher(s): Robert S. Pennington, Roy Haggerty, Angelo Sanfilippo, Kevin Feris
• Dates of data preparation: Oct 23 2016 - Sep 10 2018
• Data collection status: Study collection is completed and no new collection is planned
• Data access: Online
• DOI: https://doi.org/10.6073/pasta/8d8c0dc68f2843821d1d04f27b98a157
• Last update: Oct 30 2024 (Version 2)

<Citation>     <Acknowledgement>     <Disclaimer>    

Wondzell, S.; Serchan, S. 2024. Solute dynamics in the hyporheic zone of a headwater stream in Watershed 1 at the Andrews Experimental Forest, 2016-2018. Long-Term Ecological Research. Forest Science Data Bank, Corvallis, OR. [Database]. Available: http://andlter.forestry.oregonstate.edu/data/abstract.aspx?dbcode=CF016. https://doi.org/10.6073/pasta/8d8c0dc68f2843821d1d04f27b98a157. Accessed 2024-11-21.

Data were provided by the HJ Andrews Experimental Forest research program, funded by the National Science Foundation's Long-Term Ecological Research Program (DEB 2025755), US Forest Service Pacific Northwest Research Station, and Oregon State University.

While substantial efforts are made to ensure the accuracy of data and documentation, complete accuracy of data sets cannot be guaranteed. All data are made available "as is". The Andrews LTER shall not be liable for damages resulting from any use or misinterpretation of data sets.

ABSTRACT:
	This project examined the interactions between stream water and subsurface sediment to quantify how these interactions influenced organic C respiration and dissolved inorganic C (DIC) production in the hyporheic zone of a high-gradient headwater mountain stream draining a forested catchment at the H. J. Andrews Experimental Forest, Oregon, USA. The study used six 2-m long hyporheic mesocosms which were packed with streambed sediment in the spring of 2016. The mesocosms are located at the Watershed 1 (WS1) stream gage and stream water from WS1 has been pumped through the mesocosms continuously since they were first packed through the end of (and beyond) this study in autumn of 2018. The mesocosms were designed around 1-m long 20-cm diameter aluminum pipe segments with sample ports located each meter along the flowpath through each mesocosm – thus sampling at the inlet, at 1 m, and at the outlet which represents the full 2-m long flow path. Sampling was conducted on seven dates between Oct 23 2016 and Aug 27 2018. On two of these dates, only background samples were collected. On the remaining 5 dates, sampling was designed around continuous-injection tracer experiments using both a conservative tracer (salt) and a reactive tracer (various dissolved organic substrates). For background sampling events, samples were generally only collected once. The tracer experiments involved 4 discreet sampling times: 1. pre-injection (under background conditions); 2. early plateau; 3. late plateau, and 4. post-injection (and in one injection experiment, a 5th sample at late-post-injection time). For each round of samples, the mesocosm water temperature, pH, EC, and DO were measured with sensors in a small flow-through cell. Then water samples were collected for laboratory analysis for both DOC and DIC. The median travel time of water through each pipe segment of the 2-m mesocosms was also calculated from the conservative tracer break-through curves.

Study Description

Study Site Map

Download Study Location Information: (CSV) Ecological Metadata Language: (EML)

ENTITY TITLES:
1	Hyporheic Mesocosm - DOC and DIC concentrations in stream and hyporheic water (Oct 23 2016 - Sep 10 2018)	METADATA	DATA
	Measurements of DOC and DIC in stream water flowing through a hyporheic mesocosm, including 2 background samples and 5 continuous solute tracer injection experiments coinjecting selected DOC substrates and a conservative (NaCl) tracer
RELATED MATERIALS:
	Mesocosm Treatment Summary - Summary of mesocosm background samples and injection experiments giving the starting and ending date and time, the duration of the experiment (hours), and the applied treatments to each pair of mesocosms.
RELATED DATABASES:
	Stream chemistry concentrations and fluxes using proportional sampling in the Andrews Experimental Forest, 1968 to present (CF002)
	Carbon Dynamics in the Hyporheic Zone of a Headwater Mountain Stream in the Cascade Mountains, Oregon – Watershed 1 at HJA – June 2013 to March 2014 (CF011)
RELATED PUBLICATIONS:
	Serchan, Satish P., Wondzell, Steven M., Haggerty, Roy, Pennington, Robert, Feris, Kevin, Sanfilippo, Angelo, Tonina, Daniele, Reeder, W. Jeffery 2024, Buried particulate organic C fuels heterotrophic metabolism in the hyporheic zone of a montane headwater stream (Pub. No: 5345)
	Serchan, Satish P. 2021, Evidence of Buried Particulate Organic Carbon as Foundation for Heterotrophic Carbon Metabolism in the Hyporheic Zone of a Montane Headwater Stream in the H. J. Andrews Experimental Forest, Oregon, USA (Pub. No: 5369)