Abstract：This study considers six key links of livestock: gastrointestinal fermentation, manure management system, energy consumption of livestock and poultry breeding, feed grain planting, processing and transportation of feed grain, slaughtering and processing of animal products to estimate the livestock greenhouse gas (GHG) emissions during 1990to 2011by lifecircle assessment, in each part of China using panel data. Results showed that the emissions of CO2 equivalent of livestock by lifecycle assessment and various aspects showed an upward trend over the past 22years, particularly in the energy consumption of livestock and poultry breeding, feed grain planting, feed grain processing and transportation and slaughtering and processing of animal products. But the emissions of CO2 equivalent from feed processing and transporting and animal products slaughtering and processing accounted for the total emissions from livestock were less than 1% and 0.05%. The emissions of CO2 equivalent from gastrointestinal fermentation and manure management system, showed a downward trend. The emissions from ruminant livestock account for 55.25%, while nonruminant livestock account for 44.75 % over the past 22years. In 2011, both the emissions and emissionsintensity of CO2 equivalent from Inner Mongolia, Liaoning and Yunnan’s livestock were among the national top 10. Comparing different economic divisions together, showed that the livestock emissions of the western region was the largest proportion of emissions nationwide. And the emissionsintensity of Western and Northeastern were significantly higher than the Eastern and Central in China. Comparing different livestock divisions showed that the emissions of CO2equivalent from agricultural areas’ livestock accounted for 63.88 % of China, however the emissionintensity of pastoral areas were the highest, while the emissionintensity of agriculture areas were the lowest.
孟祥海, 程国强, 张俊飚, 王宇波, 周海川. 中国畜牧业全生命周期温室气体排放时空特征分析[J]. 中国环境科学, 2014, 34(8): 2167-2176.
MENG Xiang-Hai, CHENG Guo-Qiang, ZHANG Jun-飚, WANG Yu-Bo, ZHOU Hai-Chuan. Analyze on the spatialtemporal characteristics of GHG estimation of livestock’s by life cycle assessment in China. . CHINA ENVIRONMENTAL SCIENCECE, 2014, 34(8): 2167-2176.
