Measurement of nitrous oxide emission from agricultural land using micrometeorological methods

K J Hargreaves, F G Wienhold, L Klemedtsson, J R M Arah, I J Beverland, D Fowler, B Galle, D W T Griffith, U Skiba, K A Smith, M Welling, G W Harris

Research output: Contribution to journalArticle

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Abstract

The spatial variability of N2O emission from soil makes extrapolation to the field scale very difficult using conventional chamber techniques (<1 m(2)). Micrometeorological techniques, which integrate N2O fluxes over areas of 0.1 to 1 km(2) were therefore developed and compared with chamber methods over arable cropland. Measurements of N2O emission from an unfertilised organic soil (reclaimed from the sea in 1879) were made over a 10 d period at Lammefjord, Denmark. Flux-gradient and conditional sampling techniques were applied using two tunable diode laser spectrometers (TDLs), a Fourier transform infra-red spectrometer (FTIR) and a gas chromatograph (GC). Eddy covariance measurements were also made by the TDLs. Over the 10 d campaign approximately 5 d of continuous fluxes by the different methods were obtained. Fluxes determined by eddy covariance were in reasonable agreement, showing a mean flux of 269 mu g N m(2) h(-1). Flux-gradient techniques measured a mean flux of 226 mu g N m(-2) h(-1). The mean flux measured by conditional sampling was 379 mu g N m(-2) h(-1). The maximum annual emission of N2O from this soil system was estimated to be 23.5 kg N ha(-1).

LanguageEnglish
Pages1563-1571
Number of pages9
JournalAtmospheric Environment
Volume30
Issue number10-11
DOIs
Publication statusPublished - May 1996

Fingerprint

nitrous oxide
agricultural land
eddy covariance
spectrometer
organic soil
Fourier transform
soil
laser
sampling
gas
method

Keywords

  • eddy covariance
  • conditional sampling
  • flux gradient
  • Bowen ratio
  • nitrous oxide
  • greenhouse gas
  • flux

Cite this

Hargreaves, K. J., Wienhold, F. G., Klemedtsson, L., Arah, J. R. M., Beverland, I. J., Fowler, D., ... Harris, G. W. (1996). Measurement of nitrous oxide emission from agricultural land using micrometeorological methods. Atmospheric Environment, 30(10-11), 1563-1571. https://doi.org/10.1016/1352-2310(95)00468-8
Hargreaves, K J ; Wienhold, F G ; Klemedtsson, L ; Arah, J R M ; Beverland, I J ; Fowler, D ; Galle, B ; Griffith, D W T ; Skiba, U ; Smith, K A ; Welling, M ; Harris, G W . / Measurement of nitrous oxide emission from agricultural land using micrometeorological methods. In: Atmospheric Environment. 1996 ; Vol. 30, No. 10-11. pp. 1563-1571.
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abstract = "The spatial variability of N2O emission from soil makes extrapolation to the field scale very difficult using conventional chamber techniques (<1 m(2)). Micrometeorological techniques, which integrate N2O fluxes over areas of 0.1 to 1 km(2) were therefore developed and compared with chamber methods over arable cropland. Measurements of N2O emission from an unfertilised organic soil (reclaimed from the sea in 1879) were made over a 10 d period at Lammefjord, Denmark. Flux-gradient and conditional sampling techniques were applied using two tunable diode laser spectrometers (TDLs), a Fourier transform infra-red spectrometer (FTIR) and a gas chromatograph (GC). Eddy covariance measurements were also made by the TDLs. Over the 10 d campaign approximately 5 d of continuous fluxes by the different methods were obtained. Fluxes determined by eddy covariance were in reasonable agreement, showing a mean flux of 269 mu g N m(2) h(-1). Flux-gradient techniques measured a mean flux of 226 mu g N m(-2) h(-1). The mean flux measured by conditional sampling was 379 mu g N m(-2) h(-1). The maximum annual emission of N2O from this soil system was estimated to be 23.5 kg N ha(-1).",
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Hargreaves, KJ, Wienhold, FG, Klemedtsson, L, Arah, JRM, Beverland, IJ, Fowler, D, Galle, B, Griffith, DWT, Skiba, U, Smith, KA, Welling, M & Harris, GW 1996, 'Measurement of nitrous oxide emission from agricultural land using micrometeorological methods' Atmospheric Environment, vol. 30, no. 10-11, pp. 1563-1571. https://doi.org/10.1016/1352-2310(95)00468-8

Measurement of nitrous oxide emission from agricultural land using micrometeorological methods. / Hargreaves, K J ; Wienhold, F G ; Klemedtsson, L ; Arah, J R M ; Beverland, I J ; Fowler, D ; Galle, B ; Griffith, D W T ; Skiba, U ; Smith, K A ; Welling, M ; Harris, G W .

In: Atmospheric Environment, Vol. 30, No. 10-11, 05.1996, p. 1563-1571.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Measurement of nitrous oxide emission from agricultural land using micrometeorological methods

AU - Hargreaves, K J

AU - Wienhold, F G

AU - Klemedtsson, L

AU - Arah, J R M

AU - Beverland, I J

AU - Fowler, D

AU - Galle, B

AU - Griffith, D W T

AU - Skiba, U

AU - Smith, K A

AU - Welling, M

AU - Harris, G W

PY - 1996/5

Y1 - 1996/5

N2 - The spatial variability of N2O emission from soil makes extrapolation to the field scale very difficult using conventional chamber techniques (<1 m(2)). Micrometeorological techniques, which integrate N2O fluxes over areas of 0.1 to 1 km(2) were therefore developed and compared with chamber methods over arable cropland. Measurements of N2O emission from an unfertilised organic soil (reclaimed from the sea in 1879) were made over a 10 d period at Lammefjord, Denmark. Flux-gradient and conditional sampling techniques were applied using two tunable diode laser spectrometers (TDLs), a Fourier transform infra-red spectrometer (FTIR) and a gas chromatograph (GC). Eddy covariance measurements were also made by the TDLs. Over the 10 d campaign approximately 5 d of continuous fluxes by the different methods were obtained. Fluxes determined by eddy covariance were in reasonable agreement, showing a mean flux of 269 mu g N m(2) h(-1). Flux-gradient techniques measured a mean flux of 226 mu g N m(-2) h(-1). The mean flux measured by conditional sampling was 379 mu g N m(-2) h(-1). The maximum annual emission of N2O from this soil system was estimated to be 23.5 kg N ha(-1).

AB - The spatial variability of N2O emission from soil makes extrapolation to the field scale very difficult using conventional chamber techniques (<1 m(2)). Micrometeorological techniques, which integrate N2O fluxes over areas of 0.1 to 1 km(2) were therefore developed and compared with chamber methods over arable cropland. Measurements of N2O emission from an unfertilised organic soil (reclaimed from the sea in 1879) were made over a 10 d period at Lammefjord, Denmark. Flux-gradient and conditional sampling techniques were applied using two tunable diode laser spectrometers (TDLs), a Fourier transform infra-red spectrometer (FTIR) and a gas chromatograph (GC). Eddy covariance measurements were also made by the TDLs. Over the 10 d campaign approximately 5 d of continuous fluxes by the different methods were obtained. Fluxes determined by eddy covariance were in reasonable agreement, showing a mean flux of 269 mu g N m(2) h(-1). Flux-gradient techniques measured a mean flux of 226 mu g N m(-2) h(-1). The mean flux measured by conditional sampling was 379 mu g N m(-2) h(-1). The maximum annual emission of N2O from this soil system was estimated to be 23.5 kg N ha(-1).

KW - eddy covariance

KW - conditional sampling

KW - flux gradient

KW - Bowen ratio

KW - nitrous oxide

KW - greenhouse gas

KW - flux

U2 - 10.1016/1352-2310(95)00468-8

DO - 10.1016/1352-2310(95)00468-8

M3 - Article

VL - 30

SP - 1563

EP - 1571

JO - Atmospheric Environment

T2 - Atmospheric Environment

JF - Atmospheric Environment

SN - 1352-2310

IS - 10-11

ER -