dc.contributor.author |
Du Toit, Cornelius Jacobus Lindeque
|
|
dc.contributor.author |
Meissner, H.H.
|
|
dc.contributor.author |
Van Niekerk, Willem A.
|
|
dc.date.accessioned |
2014-05-05T12:37:04Z |
|
dc.date.available |
2014-05-05T12:37:04Z |
|
dc.date.issued |
2013 |
|
dc.description.abstract |
The objective of this study was to estimate direct methane and nitrous oxide emissions of South African dairy and beef cattle in total and per province using the Tier 2 methodology of the Intergovernmental Panel on Climate Change (IPCC), but adapted for tropical production systems. Dairy and beef cattle in 2010 contributed an estimated 964 Giga gram (Gg) or 72.6% of the total livestock methane emissions in South Africa. Beef cattle in extensive systems were the largest contributor (83.3%), followed by dairy cattle (13.5%), and feedlot cattle (3.2%). The enteric methane emission factors for dairy cattle of 76.4 kg CH4/head/year and 71.8 kg CH4/head/year for concentrate fed and pasture-based production systems, respectively, were higher than those reported by other developing countries, as well as the IPCC default value of 46 kg CH4/head/year for developing countries. The beef cattle methane emission factors of 78.9 kg CH4/head/year and 62.4 kg CH4/head/year for commercial and emerging/communal cattle, respectively, were similar to those reported by other developing countries, but higher than the IPCC default value of 31 kg/head/year. Primarily because of cattle numbers, Eastern Cape recorded the highest dairy and beef cattle methane emissions, whereas Gauteng showed the highest feedlot methane emissions. |
en_US |
dc.description.librarian |
am2014 |
en_US |
dc.description.sponsorship |
The National Research Foundation of South Africa and the RMRD SA. |
en_US |
dc.description.uri |
http://www.sasas.co.za |
en_US |
dc.identifier.citation |
Du Toit, CJL, Meissner, HH & Van Niekerk, WA 2013, 'Direct methane and nitrous oxide emissions of South African dairy and beef cattle', South African Journal of Animal Science, vol. 43, no. 3, pp. 320-339. |
en_US |
dc.identifier.issn |
0375-1589 (print) |
|
dc.identifier.issn |
2221-4062 (online) |
|
dc.identifier.other |
10.4314/sajas.v43i3.7 |
|
dc.identifier.uri |
http://hdl.handle.net/2263/39688 |
|
dc.language.iso |
en |
en_US |
dc.publisher |
South African Society for Animal Science |
en_US |
dc.rights |
Copyright resides with the authors in terms of the Creative Commons Attribution 2.5 South African Licence. |
en_US |
dc.subject |
Greenhouse gas (GHG) |
en_US |
dc.subject |
Production systems |
en_US |
dc.subject |
Commercial |
en_US |
dc.subject |
Communal |
en_US |
dc.subject |
Feedlot |
en_US |
dc.subject |
Rangeland |
en_US |
dc.title |
Direct methane and nitrous oxide emissions of South African dairy and beef cattle |
en_US |
dc.type |
Article |
en_US |