农业环境科学学报2011，Vol.30Issue(9)：1910-1916,7.
笼养肉鸡不同季节CH4和CO2排放研究
Methane, Carbon Dioxide Emissions from Caged Broilers Production Systems in Four Seasons
摘要
Abstract
The objective of this research is to estimate broiler emission rates of methane and carbon dioxide,to support compilation of livestock greenhouse gas inventories and potential mitigation options. Methane, carbon dioxide emissions from a commercial high-rise broiler house with mechanically-ventilation system were monitored during four seasons of one year. Cases concentrations of incoming and exhaust air streams were measured for five consecutive days in each season from broilers age about 36 d to 42 d by using INNOVA 1312 multi-gas monitor with multi-channel samplers. Building ventilation rates were determined by calibrated on site FANS measurement systems. The experiment results showed that average emission rates were(0.276±0.193) g·d-1bird-1(58.85±37.2 g·d-1·AU-1) of methane, (154.4±45.7) g· d-1·bird-1(33.5±7.98 kg·d-1·AU-1) of carbon dioxide. Methane emission rates varied significantly in different seasons, methane emission rates in different seasons were 0.552 g · d-1 · Bird-1 in summer, 0.111 g · d-1 · bird-1 in winter, 0.187 g· d-1 · bird-1 in spring, and 0.254 g · d-1 · bird-1 in autumn, respectively. The estimated emission rates of carbon dioxide were slightly changed between 186.8 g·d-1·bird-1 and 179.8 g·d-1biid-1 in summer and fall, but significantly higher than 163.4 g·d-1·bird-1 in spring and 87.4 g·d-1·bird-1 in winter. There was a significant linear correlation between emission rates and ventilation rate for broilers. The percentage of feed C input recovered was as follows: (56.1 ±12.5)% in CO2-C emissions, only(0.27±0.14)% feed C emitted in CH4-C emissions.关键词
笼养肉鸡/CH4/CO2/排放因子/碳损失Key words
caged broilers/ methane/ carbon dioxide/ emissions factor/ carbon loss分类
资源环境引用本文复制引用
周忠凯,董红敏,朱志平,陈永杏..笼养肉鸡不同季节CH4和CO2排放研究[J].农业环境科学学报,2011,30(9):1910-1916,7.基金项目
公益性行业(农业)专项(200803036) （农业）
