A Snapshot of Greenhouse Gas Emissions from a Cattle Feedlot

Copyright © by the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America, Inc..

Beef cattle feedlots emit large amounts of the greenhouse gases (GHG) methane (CH) and nitrous oxide (NO), as well as ammonia (NH), which contributes to NO emission when NH is deposited to land. However, there is a lack of simultaneous, in situ, and nondisturbed measurements of the major GHG gas components from beef cattle feedlots, or measurements from different feedlot sources. A short-term campaign at a beef cattle feedlot in Victoria, Australia, quantified CH, NO, and NH emissions from the feedlot pens, manure stockpiles, and surface run-off pond. Open-path Fourier transform infrared (OP-FTIR) spectrometers and open-path lasers (OP-Laser) were used with an inverse-dispersion technique to estimate emissions. Daily average emissions of CH, NO, and NH were 132 (± 2.3 SE), 0, and 117 (± 4.5 SE) g animal d from the pens and 22 (± 0.7 SE), 2 (± 0.2 SE), and 9 (± 0.6 SE) g animal d from the manure stockpiles. Emissions of CH and NH from the run-off pond were less than 0.5 g animal d. Extrapolating these results to the feedlot population of cattle across Australia would mean that feedlots contribute approximately 2% of the agricultural GHG emissions and 2.7% of livestock sector emissions, lower than a previous estimate of 3.5%.

Medienart:

E-Artikel

Erscheinungsjahr:

2015

Erschienen:

2015

Enthalten in:

Zur Gesamtaufnahme - volume:44

Enthalten in:

Journal of environmental quality - 44(2015), 6 vom: 30. Nov., Seite 1974-8

Sprache:

Englisch

Beteiligte Personen:

Bai, Mei [VerfasserIn]
Flesch, Thomas K [VerfasserIn]
McGinn, Sean M [VerfasserIn]
Chen, Deli [VerfasserIn]

Links:

Volltext

Themen:

Journal Article

Anmerkungen:

Date Revised 20.11.2019

published: Print

Citation Status PubMed-not-MEDLINE

doi:

10.2134/jeq2015.06.0278

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM255324693