دورية أكاديمية
Beef cattle methane emissions measured with tracer-ratio and inverse dispersion modelling techniques
| العنوان: | Beef cattle methane emissions measured with tracer-ratio and inverse dispersion modelling techniques |
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| المؤلفون: | Bai, M, Velazco, J, Coates, TW, Phillips, FA, Flesch, TK, Hill, J, Mayer, DG, Tomkins, NW, Hegarty, RS, Chen, D |
| بيانات النشر: | COPERNICUS GESELLSCHAFT MBH |
| سنة النشر: | 2021 |
| المجموعة: | The University of Melbourne: Digital Repository |
| الوصف: | The development and validation of management practices to mitigate greenhouse gas (GHG) emissions from livestock require accurate emission measurements. This study assessed the accuracy of a practical inverse dispersion modelling (IDM) technique to quantify methane (CH4) emitted from a small cattle herd (16 animals) confined to a 63 m × 60 m experimental pen. The IDM technique calculates emissions from the increase in the CH4 concentration measured downwind of the animals. The measurements were conducted for 7 d. Two types of open-path (OP) gas sensors were used to measure concentration in the IDM calculation: a Fourier transform infrared spectrometer (IDM-FTIR) or a CH4 laser (IDM-Laser). The actual cattle emission rate was measured with a tracer-ratio technique using nitrous oxide (N2O) as the tracer gas. We found very good agreement between the two IDM emission estimates (308.1 ± 2.1 – mean ± SE – and 304.4 ± 8.0 g CH4 head−1 d−1 for the IDM-FTIR and IDM-Laser respectively) and the tracer-ratio measurements (301.9 ± 1.5 g CH4 head−1 d−1). This study suggests that a practical IDM measurement approach can provide an accurate method of estimating cattle emissions. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| تدمد: | 1867-1381 1867-8548 |
| العلاقة: | Bai, M., Velazco, J., Coates, T. W., Phillips, F. A., Flesch, T. K., Hill, J., Mayer, D. G., Tomkins, N. W., Hegarty, R. S. & Chen, D. (2021). Beef cattle methane emissions measured with tracer-ratio and inverse dispersion modelling techniques. ATMOSPHERIC MEASUREMENT TECHNIQUES, 14 (5), pp.3469-3479. https://doi.org/10.5194/amt-14-3469-2021Test.; http://hdl.handle.net/11343/280630Test |
| الإتاحة: | https://doi.org/10.5194/amt-14-3469-2021Test http://hdl.handle.net/11343/280630Test |
| حقوق: | CC BY ; https://creativecommons.org/licenses/by/4.0Test |
| رقم الانضمام: | edsbas.71B063F9 |
| قاعدة البيانات: | BASE |
Full Text Finder | تدمد: | 18671381 18678548 |
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