Diurnal and Seasonal Patterns of Methane Emissions from a Dairy Operation in North China Plain
In China, dairy cattle managed in collective feedlots contribute about 30% of the milk production and are believed to be an important contributor to national methane emissions. Methane emissions from a collective dairy feedlot in North China Plain (NCP) were measured during the winter, spring, summe...
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| Format: | Article |
| Language: | English |
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Wiley
2011-01-01
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| Series: | Advances in Meteorology |
| Online Access: | http://dx.doi.org/10.1155/2011/190234 |
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| author | Zhiling Gao Huijun Yuan Wenqi Ma Jianguo Li Xuejun Liu Raymond L. Desjardins |
| author_facet | Zhiling Gao Huijun Yuan Wenqi Ma Jianguo Li Xuejun Liu Raymond L. Desjardins |
| author_sort | Zhiling Gao |
| collection | DOAJ |
| description | In China, dairy cattle managed in collective feedlots contribute about 30% of the milk production and are believed to be an important contributor to national methane emissions. Methane emissions from a collective dairy feedlot in North China Plain (NCP) were measured during the winter, spring, summer, and fall seasons with open-path lasers in combination with an inverse dispersion technique. Methane emissions from the selected dairy feedlot were characterized by an apparent diurnal pattern with three peaks corresponding to the schedule of feeding activities. On a per capita basis, daily methane emission rates of these four seasons were 0.28, 0.32, 0.33, and 0.30 kg head−1 d−1, respectively. In summary, annual methane emission rate was 112.4 kg head−1 yr−1 associated with methane emission intensity of 32.65 L CH4 L−1 of milk and potential methane conversion factor Ym of 6.66% of gross energy intake for mature dairy cows in North China Plain. |
| format | Article |
| id | doaj-art-fa47e616d5ce4e66b0ff063a166e5d2d |
| institution | DOAJ |
| issn | 1687-9309 1687-9317 |
| language | English |
| publishDate | 2011-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Meteorology |
| spelling | doaj-art-fa47e616d5ce4e66b0ff063a166e5d2d2025-08-20T03:20:02ZengWileyAdvances in Meteorology1687-93091687-93172011-01-01201110.1155/2011/190234190234Diurnal and Seasonal Patterns of Methane Emissions from a Dairy Operation in North China PlainZhiling Gao0Huijun Yuan1Wenqi Ma2Jianguo Li3Xuejun Liu4Raymond L. Desjardins5College of Resources and Environmental Sciences, Agricultural University of Hebei, Baoding 071000, ChinaCollege of Resources and Environmental Sciences, Agricultural University of Hebei, Baoding 071000, ChinaCollege of Resources and Environmental Sciences, Agricultural University of Hebei, Baoding 071000, ChinaCollege of Animal Science and Technology, Agricultural University of Hebei, Baoding 071000, ChinaCollege of Resources and Environmental Sciences, China Agricultural University, Beijng 100193, ChinaResearch Branch, Agriculture and Agri-Food Canada, Ottawa, ON, K1A 0C6, CanadaIn China, dairy cattle managed in collective feedlots contribute about 30% of the milk production and are believed to be an important contributor to national methane emissions. Methane emissions from a collective dairy feedlot in North China Plain (NCP) were measured during the winter, spring, summer, and fall seasons with open-path lasers in combination with an inverse dispersion technique. Methane emissions from the selected dairy feedlot were characterized by an apparent diurnal pattern with three peaks corresponding to the schedule of feeding activities. On a per capita basis, daily methane emission rates of these four seasons were 0.28, 0.32, 0.33, and 0.30 kg head−1 d−1, respectively. In summary, annual methane emission rate was 112.4 kg head−1 yr−1 associated with methane emission intensity of 32.65 L CH4 L−1 of milk and potential methane conversion factor Ym of 6.66% of gross energy intake for mature dairy cows in North China Plain.http://dx.doi.org/10.1155/2011/190234 |
| spellingShingle | Zhiling Gao Huijun Yuan Wenqi Ma Jianguo Li Xuejun Liu Raymond L. Desjardins Diurnal and Seasonal Patterns of Methane Emissions from a Dairy Operation in North China Plain Advances in Meteorology |
| title | Diurnal and Seasonal Patterns of Methane Emissions from a Dairy Operation in North China Plain |
| title_full | Diurnal and Seasonal Patterns of Methane Emissions from a Dairy Operation in North China Plain |
| title_fullStr | Diurnal and Seasonal Patterns of Methane Emissions from a Dairy Operation in North China Plain |
| title_full_unstemmed | Diurnal and Seasonal Patterns of Methane Emissions from a Dairy Operation in North China Plain |
| title_short | Diurnal and Seasonal Patterns of Methane Emissions from a Dairy Operation in North China Plain |
| title_sort | diurnal and seasonal patterns of methane emissions from a dairy operation in north china plain |
| url | http://dx.doi.org/10.1155/2011/190234 |
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