首页|Greenhouse gas emissions from pig and poultry production sectors in China from 1960 to 2010
Greenhouse gas emissions from pig and poultry production sectors in China from 1960 to 2010
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国家科技期刊平台
NETL
NSTL
万方数据
维普
Pig and poultry production in China had experienced considerable changes from 1960 to 2010. The present study aimed to evaluate the effects of these changes on greenhouse gas emission inventories (expressed as CO2 equivalent) from these two sectors. The inventories included methane emissions from enteric fermentation, methane and nitrous oxide production from manure management. The greenhouse gas emissions from these sources in 2010 in pig sector were 17, 62 and 21%, respectively, and that in poultry sector (including chicken, duck, goose and others) were 1, 18 and 81%, respectively. Total CO2 equivalent increased from 1960 to 2010 in both pig (11582 to 55564 Gg yr–1) and poultry (1497 to 14873 Gg yr–1) sectors. Within poultry sector, emissions from chicken, duck, goose and others accounted for 74, 15, 11 and 0.01% in 2010, respectively. However, during the last 50 years, these emissions continuously reduced when related to production of 1 kg of pork (8.01 to 1.14 kg kg–1), poultry meat (1.19 to 0.37 kg kg–1) and egg (0.47 to 0.33 kg kg–1), which is mainly associated with the continuous improvement in production efifciency in al management systems. These results provide benchmark information for Chinese authorities to develop appropriate policies and mitigation strategies to reduce greenhouse gas emissions from pig and poultry sectors.
Chinagreenhouse gas inventorypigpoultry
WANG Li-zhi、XUE Bai、Tianhai Yan
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Animal Nutrition Institute, Sichuan Agricultural University, Ya’an 625014, P.R.China
国家科技期刊平台
NSTL
万方数据
维普
