Nitrogen Retention in Headwater Streams: The Influence of Groundwater-Surface Water Exchange
Groundwater-surface water (GW-SW) interaction lengthens hydraulic residence times, increases contact between solutes and biologically active surfaces, and often creates a gradient of redox conditions conducive to an array of biogeochemical processes. As such, the interaction of hydraulic patterns an...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2001-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1100/tsw.2001.272 |
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| author | S.A. Thomas H.M. Valett P.J.. Mulholland C.S. Fellows J.R. Webster C.N. Dahm C.G Peterson |
| author_facet | S.A. Thomas H.M. Valett P.J.. Mulholland C.S. Fellows J.R. Webster C.N. Dahm C.G Peterson |
| author_sort | S.A. Thomas |
| collection | DOAJ |
| description | Groundwater-surface water (GW-SW) interaction lengthens hydraulic residence times, increases contact between solutes and biologically active surfaces, and often creates a gradient of redox conditions conducive to an array of biogeochemical processes. As such, the interaction of hydraulic patterns and biogeochemical activity is suspected to be an important determinant of elemental spiraling in streams. Hydrologic interactions may be particularly important in headwater streams, where the extent of the GW-SW mixing environment (i.e., hyporheic zone) is proportionately greater than in larger streams. From our current understanding of stream ecosystem function, we discuss nitrogen (N) spiraling, present a conceptual model of N retention in streams, and use both of these issues to generate specific research questions and testable hypotheses regarding N dynamics in streams. |
| format | Article |
| id | doaj-art-6508c1993e954720b1fca6bdecca460e |
| institution | Kabale University |
| issn | 1537-744X |
| language | English |
| publishDate | 2001-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-6508c1993e954720b1fca6bdecca460e2025-02-03T06:11:31ZengWileyThe Scientific World Journal1537-744X2001-01-01162363110.1100/tsw.2001.272Nitrogen Retention in Headwater Streams: The Influence of Groundwater-Surface Water ExchangeS.A. Thomas0H.M. Valett1P.J.. Mulholland2C.S. Fellows3J.R. Webster4C.N. Dahm5C.G Peterson6Department of Biology, Virginia Polytechnic Institute, Blacksburg 24060, USADepartment of Biology, Virginia Polytechnic Institute, Blacksburg 24060, USADepartment of Biology, Virginia Polytechnic Institute, Blacksburg 24060, USADepartment of Biology, Virginia Polytechnic Institute, Blacksburg 24060, USADepartment of Biology, Virginia Polytechnic Institute, Blacksburg 24060, USADepartment of Biology, Virginia Polytechnic Institute, Blacksburg 24060, USADepartment of Biology, Virginia Polytechnic Institute, Blacksburg 24060, USAGroundwater-surface water (GW-SW) interaction lengthens hydraulic residence times, increases contact between solutes and biologically active surfaces, and often creates a gradient of redox conditions conducive to an array of biogeochemical processes. As such, the interaction of hydraulic patterns and biogeochemical activity is suspected to be an important determinant of elemental spiraling in streams. Hydrologic interactions may be particularly important in headwater streams, where the extent of the GW-SW mixing environment (i.e., hyporheic zone) is proportionately greater than in larger streams. From our current understanding of stream ecosystem function, we discuss nitrogen (N) spiraling, present a conceptual model of N retention in streams, and use both of these issues to generate specific research questions and testable hypotheses regarding N dynamics in streams.http://dx.doi.org/10.1100/tsw.2001.272 |
| spellingShingle | S.A. Thomas H.M. Valett P.J.. Mulholland C.S. Fellows J.R. Webster C.N. Dahm C.G Peterson Nitrogen Retention in Headwater Streams: The Influence of Groundwater-Surface Water Exchange The Scientific World Journal |
| title | Nitrogen Retention in Headwater Streams: The Influence of Groundwater-Surface Water Exchange |
| title_full | Nitrogen Retention in Headwater Streams: The Influence of Groundwater-Surface Water Exchange |
| title_fullStr | Nitrogen Retention in Headwater Streams: The Influence of Groundwater-Surface Water Exchange |
| title_full_unstemmed | Nitrogen Retention in Headwater Streams: The Influence of Groundwater-Surface Water Exchange |
| title_short | Nitrogen Retention in Headwater Streams: The Influence of Groundwater-Surface Water Exchange |
| title_sort | nitrogen retention in headwater streams the influence of groundwater surface water exchange |
| url | http://dx.doi.org/10.1100/tsw.2001.272 |
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