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| Review of progress on CH4 and N2O emissions mitigation during livestock and poultry manure composting |
| Received:March 07, 2024 |
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| KeyWord:livestock manure;composting;CH4;N2O;mitigating GHG emissions |
| Author Name | Affiliation | E-mail | | DUAN Yajun | Department of Agricultural Resources and Environment, College of Ecology and Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing 210044, China | | | WU Hongsheng | Department of Agricultural Resources and Environment, College of Ecology and Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing 210044, China | yzwhs@126.com | | LI Zhenwei | Department of Agricultural Resources and Environment, College of Ecology and Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing 210044, China | | | LI Yanhui | Department of Agricultural Resources and Environment, College of Ecology and Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing 210044, China | | | CHEN Guangyao | Department of Agricultural Resources and Environment, College of Ecology and Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing 210044, China | | | LIU Zheng | Department of Agricultural Resources and Environment, College of Ecology and Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing 210044, China | | | HU Fengyi | Huai'an Dilibao Ecological Fertilizer Co., Ltd., Huai'an 211700, China | | | MA Wenzhou | Xuyi County Agricultural Technology Extension Center Farming Station, Huai'an 211700, China | | | ZHOU Guohua | Xuyi County Agricultural Technology Extension Center Farming Station, Huai'an 211700, China | | | WANG Xiaoyun | Xinghua Modern Agricultural Technology Service Center, Taizhou 225700, China | | | CHI Jinhe | Binhai County Soil and Fertilizer Station, Yancheng 224500, China | | | LU Dongming | Suzhou Huanyou Detection Technology Co., Ltd., Suzhou 215311, China | | | GU Xiaoming | Suzhou Huanyou Detection Technology Co., Ltd., Suzhou 215311, China | |
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| Abstract: |
| Composting is an important technical means for the resource utilization of livestock and poultry manure. However, a large amount of greenhouse gases（CH4, CO2, N2O）will be produced and emitted during the composting process. Given this aspect, this paper investigates a large number of domestic and foreign literature, systematically reviews the mechanism and influencing factors of greenhouse gas generation in the composting process of livestock and poultry manure according to the existing data, and deeply discusses the control measures of greenhouse gas emissions mitigation in the composting process, to provide theoretical basis and technical guidance for mitigating greenhouse gas emissions in the composting process. Physical additives have been widely used in the field of greenhouse gas emissions mitigation during composting with good effects. In particular, biochar has attracted much attention, mainly through affecting the composting microenvironment, influencing microbial activity, adsorption or participation in the reaction to achieve greenhouse gas emissions decreasing. Chinese herbal medicine additives can reduce greenhouse gas emissions from field soil. Whether they have mitigation effects and their mechanisms in composting are still unclear. Chemical inhibitors（excluding nitrification inhibitors）mainly affect greenhouse gas emissions by affecting compost pH, while nitrification inhibitors have obvious advantages in inhibiting N2O emissions. Microbial additives mainly impact greenhouse gas emissions by affecting microbial metabolism. In the future, we should strengthen the research on the emission reduction of greenhouse gases from composting by Chinese herbal medicines, and further explore the efficient and stable emission reduction additives for greenhouse gases during composting, especially the additives that can achieve synergistic emission reduction of CH4 and N2O. |
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