Articles | Volume 15, issue 13
https://doi.org/10.5194/bg-15-3953-2018
https://doi.org/10.5194/bg-15-3953-2018
Research article
 | 
02 Jul 2018
Research article |  | 02 Jul 2018

Stable isotopes of nitrate reveal different nitrogen processing mechanisms in streams across a land use gradient during wet and dry periods

Wei Wen Wong, Jesse Pottage, Fiona Y. Warry, Paul Reich, Keryn L. Roberts, Michael R. Grace, and Perran L. M. Cook

Related authors

Negligible isotopic fractionation of nitrogen within temperate Zostera spp. meadows
Douglas G. Russell, Wei Wen Wong, and Perran L. M. Cook
Biogeosciences, 15, 7225–7234, https://doi.org/10.5194/bg-15-7225-2018,https://doi.org/10.5194/bg-15-7225-2018, 2018
Short summary
The importance of nitrogen fixation to a temperate, intertidal embayment determined using a stable isotope mass balance approach
Douglas G. Russell, Adam J. Kessler, Wei Wen Wong, and Perran L. M. Cook
Biogeosciences Discuss., https://doi.org/10.5194/bg-2017-418,https://doi.org/10.5194/bg-2017-418, 2017
Preprint withdrawn
Short summary

Related subject area

Biogeochemistry: Rivers & Streams
Stable isotopic evidence for the excess leaching of unprocessed atmospheric nitrate from forested catchments under high nitrogen saturation
Weitian Ding, Urumu Tsunogai, Fumiko Nakagawa, Takashi Sambuichi, Masaaki Chiwa, Tamao Kasahara, and Ken'ichi Shinozuka
Biogeosciences, 20, 753–766, https://doi.org/10.5194/bg-20-753-2023,https://doi.org/10.5194/bg-20-753-2023, 2023
Short summary
Nitrogen isotopes reveal a particulate-matter-driven biogeochemical reactor in a temperate estuary
Kirstin Dähnke, Tina Sanders, Yoana Voynova, and Scott D. Wankel
Biogeosciences, 19, 5879–5891, https://doi.org/10.5194/bg-19-5879-2022,https://doi.org/10.5194/bg-19-5879-2022, 2022
Short summary
High-resolution vertical biogeochemical profiles in the hyporheic zone reveal insights into microbial methane cycling
Tamara Michaelis, Anja Wunderlich, Ömer K. Coskun, William Orsi, Thomas Baumann, and Florian Einsiedl
Biogeosciences, 19, 4551–4569, https://doi.org/10.5194/bg-19-4551-2022,https://doi.org/10.5194/bg-19-4551-2022, 2022
Short summary
Particulate organic matter in the Lena River and its Delta: From the permafrost catchment to the Arctic Ocean
Olga Ogneva, Gesine Mollenhauer, Bennet Juhls, Tina Sanders, Juri Palmtag, Matthias Fuchs, Hendrik Grotheer, Paul J. Mann, and Jens Strauss
Biogeosciences Discuss., https://doi.org/10.5194/bg-2022-183,https://doi.org/10.5194/bg-2022-183, 2022
Revised manuscript accepted for BG
Short summary
Organic matter transformations are disconnected between surface water and the hyporheic zone
James C. Stegen, Sarah J. Fansler, Malak M. Tfaily, Vanessa A. Garayburu-Caruso, Amy E. Goldman, Robert E. Danczak, Rosalie K. Chu, Lupita Renteria, Jerry Tagestad, and Jason Toyoda
Biogeosciences, 19, 3099–3110, https://doi.org/10.5194/bg-19-3099-2022,https://doi.org/10.5194/bg-19-3099-2022, 2022
Short summary

Cited articles

Barnes, R. T. and Raymond, P. A.: Land-use controls on sources and processing of nitrate in small watersheds: insights from dual isotopic analysis, Ecol. Appl., 20, 1961–1978, https://doi.org/10.1890/08-1328.1, 2010. 
Bateman, A. S. and Kelly S. D.: Fertilizer nitrogen isotope signatures, Isot. Environ. Healt. S., 43, 237–247, https://doi.org/10.1080/10256010701550732, 2007. 
Battaglin, W. A., Kendall, C., Chang, C. C. Y., Silva, S. R., and Campbell, D. H.: Chemical and isotopic evidence of nitrogen transformation in the Mississippi River, 1997–1998, Hydrol. Process., 15, 1285–1300, https://doi.org/10.1002/hyp.214, 2001. 
Billy, C., Billen, G., Sebilo, M., Birgand, F., and Tournebize, J.: Nitrogen isotopic composition of leached nitrate and soil organic matter as an indicator of denitrification in a sloping drained agricultural plot and adjacent uncultivated riparian buffer strips, Soil Biol. Biochem., 42, 108–117, https://doi.org/10.1016/j.soilbio.2009.09.026, 2010. 
Buchwald, C. and Casciotti, K. L.: Oxygen isotopic fractionation and exchange during bacterial nitrite oxidation, Limnol. Oceanogr., 55, 1064–1074, https://doi.org/10.4319/lo.2010.55.3.1064, 2010. 
Download
Short summary
Over-enrichment of nitrate can pose substantial risk to the quality of freshwater ecosystems. Hence, understanding the dynamics of nitrate is the key to better management of waterways. This study evaluates the relationship between the effects of land use and rainfall on the major sources and processing of nitrate within and between five streams in five catchments spanning an agricultural land use gradient. We found that rainfall exerted significant control over the fate of nitrate.
Altmetrics
Final-revised paper
Preprint