Skip to Main Content
Impact of stream geomorphology on greenhouse gas concentration in a New York mountain streamAuthor(s): Philippe Vidon; Satish Serchan
Source: Water, Air, & Soil Pollution 227(12): 878-
Publication Series: Scientific Journal (JRNL)
Station: Pacific Northwest Research Station
Download Publication (1.0 MB)
DescriptionAs increased greenhouse gas concentrations (GHG: N2O, CO2, CH4) in our atmosphere remain a major concern, better quantifying GHG fluxes from natural systems is essential. In this study, we investigate GHG concentrations in saturated riparian sediments (dry, wet, mucky), streambed hyporheic zone sediments (pools, riffles), and stream water in a New York mountain stream for summer baseflow conditions, and attempt to identify the primary drivers (e.g., DO, DOC, NO3−, and NH4+, temp) of GHG concentrations at these locations. Although DO, DOC, NO3−, and NH4+ concentration patterns certainly explained some of the observed trends, the overall differences in GHG abundance in riparian water vs. hyporheic pool water vs. hyporheic riffle water strongly suggest that water velocity/mixing with the atmosphere is a key control on GHG concentration across locations. When all floodplain locations are considered, in-stream pools are hot spots of CO2 and CH4 concentrations relative to other in-stream locations. On the other hand, riparian areas are hot spots of CH4 and CO2 concentrations relative to stream locations. No clear patterns are observed for N2O.
- Visit PNW's Publication Request Page to request a hard copy of this publication.
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationVidon, Philippe; Serchan, Satish. 2016. Impact of stream geomorphology on greenhouse gas concentration in a New York mountain stream. Water, Air, & Soil Pollution. 227(12): 878-. https://doi.org/10.1007/s11270-016-3131-5.
KeywordsDissolved gases, concentration excess, hyporheic zone, groundwater, stream
- Landscape geomorphic characteristic impacts on greenhouse gas fluxes in exposed stream and riparian sediments
- Carbon dynamics in the hyporheic zone of a headwater mountain stream in the Cascade Mountains, Oregon
- Stream nitrogen responses to fire in the Southeastern U.S.
XML: View XML