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Seasonal groundwater nitrate dynamics in a riparian buffer zone

(2002) AGRONOMIE. 22(7-8). p.747-753
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Abstract
Nitrate residue measurements, groundwater NO3- and chloride (Cl-) concentration patterns and delta(15)N-NO3- data were used to evaluate groundwater nitrate dynamics in a vegetated riparian buffer strip. Within the riparian zone, shallow groundwater surveys (< 2 m) showed a temporal and spatial variation of nitrate concentrations. Nitrate concentrations on the input side of the riparian zone peaked in autumn after harvest (up to 22 mg NO3- -N.L-1) and continued to be high during winter and spring. In all seasons, nitrate concentrations could be reduced to below 5 mg NO3- -N.L-1 over a short distance (< 12 m). As NO3- concentrations in the groundwater of the riparian zone decreased during its flow through the riparian zone, a progressive enrichment in delta(15)N-NO3- was observed. Consequently, denitrification could be identified as a significant process for NO3- retention.
Keywords
FOREST, REMOVAL, DENITRIFICATION, NITROUS-OXIDE, stable nitrogen isotopes, denitrification, riparian zone, nitrate, diffuse pollution, groundwater, INPUTS, PATCHINESS, STREAM, CARBON, FATE

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Citation

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Chicago
Dhondt, Karel, Pascal Boeckx, Oswald Van Cleemput, Georges Hofman, and François De Troch. 2002. “Seasonal Groundwater Nitrate Dynamics in a Riparian Buffer Zone.” Agronomie 22 (7-8): 747–753.
APA
Dhondt, Karel, Boeckx, P., Van Cleemput, O., Hofman, G., & De Troch, F. (2002). Seasonal groundwater nitrate dynamics in a riparian buffer zone. AGRONOMIE, 22(7-8), 747–753. Presented at the 11th Nitrogen Workshop.
Vancouver
1.
Dhondt K, Boeckx P, Van Cleemput O, Hofman G, De Troch F. Seasonal groundwater nitrate dynamics in a riparian buffer zone. AGRONOMIE. 2002;22(7-8):747–53.
MLA
Dhondt, Karel, Pascal Boeckx, Oswald Van Cleemput, et al. “Seasonal Groundwater Nitrate Dynamics in a Riparian Buffer Zone.” AGRONOMIE 22.7-8 (2002): 747–753. Print.
@article{157181,
  abstract     = {Nitrate residue measurements, groundwater NO3- and chloride (Cl-) concentration patterns and delta(15)N-NO3- data were used to evaluate groundwater nitrate dynamics in a vegetated riparian buffer strip. Within the riparian zone, shallow groundwater surveys ({\textlangle} 2 m) showed a temporal and spatial variation of nitrate concentrations. Nitrate concentrations on the input side of the riparian zone peaked in autumn after harvest (up to 22 mg NO3- -N.L-1) and continued to be high during winter and spring. In all seasons, nitrate concentrations could be reduced to below 5 mg NO3- -N.L-1 over a short distance ({\textlangle} 12 m). As NO3- concentrations in the groundwater of the riparian zone decreased during its flow through the riparian zone, a progressive enrichment in delta(15)N-NO3- was observed. Consequently, denitrification could be identified as a significant process for NO3- retention.},
  author       = {Dhondt, Karel and Boeckx, Pascal and Van Cleemput, Oswald and Hofman, Georges and De Troch, Fran\c{c}ois},
  issn         = {0249-5627},
  journal      = {AGRONOMIE},
  keyword      = {FOREST,REMOVAL,DENITRIFICATION,NITROUS-OXIDE,stable nitrogen isotopes,denitrification,riparian zone,nitrate,diffuse pollution,groundwater,INPUTS,PATCHINESS,STREAM,CARBON,FATE},
  language     = {eng},
  location     = {Reims, France},
  number       = {7-8},
  pages        = {747--753},
  title        = {Seasonal groundwater nitrate dynamics in a riparian buffer zone},
  url          = {http://dx.doi.org/10.1051/agro:2002063},
  volume       = {22},
  year         = {2002},
}

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