| Abstract: | Denitrifying potentials increased with increasing distance from the stream channel. Dissolved oxygen was 100% of the concentration expected in equilibrium with the atmosphere in water obtained from monitoring wells immediately adjacent to the stream but was as low as 7% of the expected value in water 11.4 m inland. Both nitrate and dissolved organic carbon decreased over summer in wells at the base of the alder-forested slope. A 48-h injection of nitrate-amended stream water into hyporheic water 8.4 m inland stimulated nitrous oxide production in the presence of acetylene. Nitrous oxide was generated as nitrate and acetylene were co-transported to a well 13 m down-gradient. Acetylene-block experiments coupled with the chemistry data suggest that denitrification can modify the chemistry of water during passage through the hyporheic zone. -from Authors |
| Genre: | Article |
| ProdID: | 70015905 |
| Citation Author: | Duff, J. H.; Triska, F. J. |
| Citation Contributing Office: | |
| Citation Datum: | |
| Citation Day: | |
| Citation Edition: | |
| Citation Editor: | |
| Citation End Page: | 1147 |
| Citation Issue: | 6 |
| Citation Keywords: | |
| Citation Language: | English |
| Citation Larger Work Title: | Canadian Journal of Fisheries and Aquatic Sciences |
| Citation LatN: | |
| Citation LatS: | |
| Citation LonE: | |
| Citation LonW: | |
| Citation Month: | |
| Citation No Pagination: | |
| Citation Number Of Pages: | 8 |
| Citation Online Only Flag: | |
| Citation Phsyical Description: | |
| Citation Projection: | |
| Citation Public Comments: | |
| Citation Publisher: | |
| Citation Series: | |
| Citation Series Code: | |
| Citation Series Number: | |
| Citation Search Results Text: | Denitrification in sediments from the hyporheic zone adjacent to a small forested stream; 1990; Article; Journal; Canadian Journal of Fisheries and Aquatic Sciences; Duff, J. H.; Triska, F. J. |
| Citation Start Page: | 1140 |
| Citation Volume: | 47 |
| Citation Year: | 1990 |
| Type: | citation/reference |
| Text: | Denitrification in sediments from the hyporheic zone adjacent to a small forested stream; 1990; Article; Journal; Canadian Journal of Fisheries and Aquatic Sciences; Duff, J. H.; Triska, F. J. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| URL (DIGITAL OBJECT IDENTIFIER): | http://dx.doi.org/10.1139/f90-133 |
| Date Other: | Mon, 1 Jan 1990 00:00 -0600 |
| Publisher: | |
