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| Calculation and analysis of carbon emissions and emission reduction potential of livestock and poultry manure in Qinhuangdao City under the background of the carbon peaking and carbon neutrality |
| Received:December 10, 2024 |
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| KeyWord:livestock and poultry manure;carbon emissions;multi-factor grey model;Qinhuangdao;Carbon reduction potentia;resource utilization |
| Author Name | Affiliation | E-mail | | QI Haiyun | Hebei University of Environmental Engineering, Qinhuangdao 066102, China
Hebei Key Laboratory of Agroecological Safety, Qinhuangdao 066102, China
Key Research and Cultivation Base of Humanities and Social Sciences in Higher Education Institutions in Hebei Province, Qinhuangdao 066102, China) | | | ZHAO Zhongbao | Hebei University of Environmental Engineering, Qinhuangdao 066102, China
Hebei Key Laboratory of Agroecological Safety, Qinhuangdao 066102, China
Key Research and Cultivation Base of Humanities and Social Sciences in Higher Education Institutions in Hebei Province, Qinhuangdao 066102, China) | zhaozhongbao@hebuee.edu.cn | | LIU Shengyang | Nanjing Forestry University, Nanjing 210037, China | liushengyang0123@foxmail.com | | LI Fengxin | Hebei University of Environmental Engineering, Qinhuangdao 066102, China | | | GENG Shigang | Hebei University of Environmental Engineering, Qinhuangdao 066102, China
Hebei Key Laboratory of Agroecological Safety, Qinhuangdao 066102, China
Key Research and Cultivation Base of Humanities and Social Sciences in Higher Education Institutions in Hebei Province, Qinhuangdao 066102, China) | |
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| Abstract: |
| In order to clarify the current situation of carbon emissions from livestock and poultry manure and the carbon emission reduction potential in Qinhuangdao City, this study investigated greenhouse gas emissions from livestock and poultry manure management, using livestock and poultry population data from four major types in Qinhuangdao City from 2013 to 2022 as activity level data. A baseline scenario was established through field surveys. The emission factor method and multi-factor grey model were used to calculate the current carbon emissions from livestock and poultry manure in Qinhuangdao, predict their dynamic trends, and assess carbon reduction potential under different management scenarios. The results show that, from 2013 to 2022, the carbon emissions from livestock and poultry manure in Qinhuangdao City showed a trend of rising, then falling, followed by a slow rise; pigs and cattle are the main sources of carbon emissions; under the baseline scenario, the CO2e of livestock and poultry manure emissions in Qinhuangdao City is expected to reach 1 379 000 t by 2030 and will be in a continuous upward trend. Under the two low-carbon scenarios of full biogas production and full composting, carbon emissions will be reduced by 453 600 t and 650 000 t respectively by 2030. Under the scenario of dynamic adjustment of management methods, the inflection point of carbon emissions from livestock and poultry manure can be achieved in 2028. |
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