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Nitrate removal in stream ecosystems measured by <sup>15</sup>N addition experiments: Total uptake

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Nitrate removal in stream ecosystems measured by <sup>15</sup>N addition experiments: Total uptake; 2009; Article; Journal; Limnology and Oceanography; Hall, Jr. , R. O.; Tank, J. L.; Sobota, D. J.; Mulholland, P. J.; O'Brien, J. M.; Dodds, W. K.; Webster, J. R.; Valett, H. M.; Poole, G. C.; Peterson, B. J.; Meyer, J. L.; McDowell, W. H.; Johnson, S. L.; Hamilton, S. K.; Grimm, N. B.; Gregory, S. V.; Dahm, C. N.; Cooper, L. W.; Ashkenas, L. R.; Thomas, S. M.; Sheibley, R. W.; Potter, J. D.; Niederlehner, B. R.; Johnson, L. T.; Helton, A. M.; Crenshaw, C. M.; Burgin, A. J.; Bernot, M. J.; Beaulieu, J. J.; Arangob, C. P.

Summary

We measured uptake length of 15NO-3 in 72 streams in eight regions across the United States and Puerto Rico to develop quantitative predictive models on controls of NO-3 uptake length. As part of the Lotic Intersite Nitrogen eXperiment II project, we chose nine streams in each region corresponding to natural (reference), suburban-urban, and agricultural land uses. Study streams spanned a range of human land use to maximize variation in NO-3 concentration, geomorphology, and metabolism. We tested a causal model predicting controls on NO-3 uptake length using structural equation modeling. The model included concomitant measurements of ecosystem metabolism, hydraulic parameters, and nitrogen concentration. We compared this structural [...]

Contacts

Author :
R.O. Hall Jr., J.L. Tank, D.J. Sobota, P.J. Mulholland, J. M. O'Brien, W.K. Dodds, J.R. Webster, H.M. Valett, G.C. Poole, B.J. Peterson, J.L. Meyer, W.H. McDowell, S.L. Johnson, S.K. Hamilton, N. B. Grimm, S.V. Gregory, Clifford N. Dahm, L.W. Cooper, L.R. Ashkenas, S.M. Thomas, R.W. Sheibley, J.D. Potter, B.R. Niederlehner, L.T. Johnson, A.M. Helton, C.M. Crenshaw, A.J. Burgin, M.J. Bernot, J.J. Beaulieu, C.P. Arangob
Publisher :
American Society of Limnology and Oceanography

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Type Scheme Key
local-index unknown 70034854
local-pk unknown 70034854
series unknown Limnology and Oceanography

Citation Extension

citationTypeArticle
journalLimnology and Oceanography
languageEnglish
parts
typevolume
value54
typeissue
value3

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