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Three-dimensional spatial patterns of trace gas concentrations in baseflow-dominated agricultural streams: implications for surface-ground water interactions and biogeochemistry

Dates

Year
2011

Citation

Werner, Samuel F., Browne, Bryant A., and Driscoll, Charles T., 2011, Three-dimensional spatial patterns of trace gas concentrations in baseflow-dominated agricultural streams: implications for surface-ground water interactions and biogeochemistry: Biogeochemistry.

Summary

Small streams that drain agricultural landscapes have come under close scrutiny as potentially significant indirect sources of greenhouse gases (GHGs) to the atmosphere. By exploring the stream-ground water connection in three dimensional space (horizontally and vertically beneath the stream channel, and longitudinally along the stream corridor) our results show (1) ground water can be a significant source of greenhouse gases to streams draining agricultural watersheds with concentrations in excess of atmospheric equilibrium by 221 mu mol C L super(-1) carbon dioxide, 0.64 mu mol C L super(-1) methane, and 0.65 mu mol N L super(-1) nitrous oxide (N sub(2)O); (2) changes in the stream-ground water connection can create seemingly erratic [...]

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  • National and Regional Climate Adaptation Science Centers
  • Northeast CASC

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Type Scheme Key
ISSN http://sciencebase.gov/vocab/identifierScheme 0168-2563

Citation Extension

citationTypeJournal Article
journalBiogeochemistry

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