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Life cycle assessment on the environmental impacts of different pig manure management techniques

International Journal of Agricultural and Biological Engineering 2022年第3期15卷 78-84页

作者： Baocheng Dong Chengjun Song Huibin Li Aijun Lin Jiuchen Wang Wei Li School of Chemical Engineering and Technology Tianjin UniversityTianjin 300350China Comprehensive Laboratory for Resource Recycling Technology and Model of the Ministry of Agriculture and Rural Affairs Rural Energy and Environment AgencyBeijing 100125China School of Chemical Engineering and Technology Beijing University of Chemical TechnologyBeijing 100029China

The management of livestock waste is an effective way to achieve emission reduction and carbon fixation in agriculture and rural *** present,aerobic composting and anaerobic fermentation are widely used in livestock waste treatment *** this study,pig manure management was taken as an example,a comprehensive environmental load index was constructed to quantitatively evaluate the environmental impacts of global warming,environmental acidification,eutrophication,and photochemical ozone synthesis during aerobic composting and anaerobic fermentation based on the life cycle *** results showed that the potential values of aerobic composting and anaerobic fermentation were similar,and the order was global warming,environmental acidification,eutrophication,and photochemical ozone *** fermentation contributed more to global warming,while aerobic composting contributed more to environmental acidification,eutrophication,and photochemical ozone *** addition,the environmental load index of aerobic composting was significantly higher than that of anaerobic *** were certainly regional differences in the environmental load index,and the environmental impact effect of anaerobic fermentation was low and more environmentally *** findings provided a technical basis for livestock manure management in different regions of China,which was conducive to promoting animal husbandry emission reduction and carbon sequestration.

关键词： manure management life cycle assessment low carbon treatment aerobic composting anaerobic fermentation environmental impact assessment emission reduction and carbon sequestration

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LIVESTOCK AND POULTRY manure management FROM THE PERSPECTIVE OF CARBON NEUTRALITY IN CHINA

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Frontiers of Agricultural Science and Engineering 2023年第3期10卷 341-362页

作者： Leli ZHANG Reaihan E Mahmoud MALI Hongjian LIN Shuai ZHANG Shuqin JIN Zhiping ZHU Jianjun HU Yiqing YAO Yong SUN Shuiping YAN Zhidan LIU Laboratory of Environment-Enhancing Energy(E2E) College of Water Resources and Civil EngineeringChina Agricultural UniversityBeijing 100083China Key Laboratory of Agricultural Engineering in Structure and Environment Ministry of Agriculture and Rural AffairsBeijing 100083China Agricultural Engineering Research Institute Agricultural Research CenterGiza 12311Egypt College of Biosystems Engineering and Food Science Zhejiang UniversityHangzhou 310058China College of Animal Science and Technology China Agricultural UniversityBeijing 100193China Research Center for Rural Economy Ministry of Agriculture and Rural AffairsBeijing 100810China Institute of Environmental and Sustainable Development in Agriculture Chinese Academy of Agriculture SciencesBeijing 100081China College of Mechanical&Electrical Engineering Henan Agricultural UniversityZhengzhou 450002China College of Mechanical and Electrical Engineering Northwest A&F UniversityYangling 712100China College of Engineering Northeast Agricultural UniversityHarbin 150030China College of Engineering Huazhong Agricultural UniversityWuhan 430070China

The rapid growth of the livestock and poultry production in China has led to a rise in manure generation,which contributes to the emissions of GHGs(greenhouse gases including CH_(4),N_(2)O and CO_(2))and other harmful gases(NH_(3),H_(2)S).Reducing and managing carbon emissions has become a critical global environmental imperative due to the adverse impacts of *** previous reviews that focused on resource recovery,this work provides an unique insight of transformation from resource-oriented manure treatment to integration of resource recovery with pollution reduction,carbon accounting and trading,focusing on the sustainable development of manure management *** the importance of accounting methodologies for carbon emission and trading system toward carbon neutrality society,suggestions and strategies including attaching high importance to the development of more accuracy accounting methodologies and more practical GHG emission reduction methodologies are given in this *** work directs the establishment of carbon reduction methodologies and the formulation of governmental policies for livestock and poultry manure management system in China.

关键词： valorization of animal manure manure management carbon emission carbon footprint methodology carbon trading

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An Evaluation of manure management Strategies, Phosphorus Surface Runoff Potential and Water Usage at an Arkansas Discovery Dairy Farm

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Journal of Environmental Protection 2023年第9期14卷 742-760页

作者： James M. Burke Mike B. Daniels Pearl Webb Andrew N. Sharpley Timothy Glover Lawrence Berry Karl W. Van Devender Stan Rose Department of Crop Soil and Environmental Sciences University of Arkansas Fayetteville AR USA University of Arkansas Division of Agriculture Little Rock AR USA United States Department of Agriculture-Natural Resources Conservation Service Fort Smith AR USA

manure management is an essential component of dairy production. Nutrient-laden, field-applied dairy manure often serves as a fertilizer source, but can also pose environmental threats if not properly managed. The Haak dairy farm, located in Decatur, Arkansas, was granted a permit by the Arkansas Department of Environmental Quality (ADEQ) to employ a unique method in treating and storing cattle manure generated during the milking process. This method includes minimizing water use in wash water, dry scraping solids to combine with sawdust for composting and pumping effluent underground into a sloped concrete basin that serves as secondary solid separator before transporting the manure effluent into an interception trench and an adjacent grassed field to facilitate manure nutrient uptake and retention. The Arkansas Discovery Farm program (ADF) is conducting research to evaluate the environmental performance of the dairy’s milk center wash water treatment system (MCWW) by statistical analysis, characterization of phosphorus (P) migration in soil downslope from the inception trench, temperature measurements, and nutrient analysis of a stored dry stack manure/sawdust mixture. Goals included determining possible composting effectiveness along with comparisons to untreated dairy manure and quantifying the use of on-farm water. Results from this research demonstrated that: 1) The MCWW was effective at retaining manure-derived nutrients and reducing field nutrient migration as the MCWW interception trench had significantly higher total nitrogen (TN) (804.2 to 4.1), total phosphorus (TP) (135.6 to 1.5), and water extractable phosphorus (WEP) (55.0 to 1.0) concentrations in milligrams per liter (mg⋅L-1) than the downhill freshwater pond respectively;2) temperature readings of the manure dry stack indicated heightened levels of microbial and thermal activity, but did not reach a standard composting temperature of 54°C;3) manure dry stack nutrient content was typicall

关键词： manure management Soil Test Phosphorus Surface Runoff Water Usage manure Composting Environmental Hazards Arkansas Milk Center Wastewater Treatment System Statistical Analysis

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Driving factors of direct greenhouse gas emissions from China's pig industry from 1976 to 2016

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Journal of Integrative Agriculture 2021年第1期20卷 319-329页

作者： DAI Xiao-wen Zhanli SUN Daniel MULLER Sichuan Center for Rural Development Research Sichuan Agricultural UniversityChengdu 611130P.R.China Leibniz Institute of Agricultural Development in Transition Economies(IAMO) Halle(Saale)06120Germany Geography Department Humboldt-Universitat zu BerlinBerlin 10099Germany Integrative Research Institute on Transformations of Human-Environment Systems(IRI THESys) Humboldt-Universitat zu BerlinBerlin 10099Germany

Livestock cultivation is a significant source of greenhouse gas(GHG) emissions, accounting for 14.5% of the total anthropogenic emissions. China is responsible for a considerable share of the global livestock emissions, particularly caused by pork production. We used the Kaya identity and the logarithmic mean Divisia index(LMDI) to decompose the national annual GHG emissions from enteric fermentation and manure management in pig farming in China from 1976 to 2016. We decomposed the sources of the emissions into five driving factors:(1) technological progress(e.g., feed improvement);(2) structural adjustment in the livestock sector;(3) structural adjustment in agriculture;(4) affluence;and(5) population growth. The results showed that the net GHG emissions from the pig sector in China increased 16 million tons(Mt) of carbon dioxide equivalents(CO2 eq) during the study period. The decomposition analysis revealed that structural adjustment in agriculture, growing affluence, and population growth contributed to an increase of the GHG emissions of pork production by 23, 41, and 13 Mt CO2 eq, respectively. The technological progress and structural changes in animal husbandry mitigated emissions by –51 and –11 Mt CO2 eq, respectively. Further technological progress in pig production and optimizing the economic structures are critical for further reducing GHG emissions in China's pig industry. Our results highlight the dominant role of technological changes for emission reductions in the pig farming.

关键词： livestock production carbon emissions manure management pig farming LMDI decomposition

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GREENHOUSE GAS EMISSIONS FROM LIVESTOCK IN CHINA AND MITIGATION OPTIONS WITHIN THE CONTEXT OF CARBON NEUTRALITY

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Frontiers of Agricultural Science and Engineering 2023年第2期10卷 226-233页

作者： Zhiping ZHU Yue WANG Ting YAN Zherui ZHANG Shunli WANG Hongmin DONG Institute of Environmental and Sustainable Development in Agriculture Chinese Academy of Agriculture SciencesBeijing 100081China College of Resources and Environmental Sciences China Agricultural UniversityBeijing 100193China

Animal husbandry is a major source of greenhouse gas(GHG)emissions in *** the emissions from the livestock sector is vital for green development of agriculture in *** on National Communication on Climate Change of United Nations,this study aims to investigate the characteristics of GHG emissions of animal husbandry during 1994 to 2014,introduce major emission reduction technologies and their effectiveness,and investigate options for emission reduction for the livestock sector in *** proposes that control of pollution and carbon emissions can be realized through increased animal productivity,improved feed quality and recycling of animal *** paper thus concludes with suggestions of green and lowcarbon development of animal husbandry,including the research and development of new technology for emission reduction and carbon sequestration of the livestock sector,enhancement of monitoring and evaluation,and establishment of emission reduction and carbon sequestration standards.

关键词： animal husbandry emission reduction solutions feed improvement greenhouse gases emission manure management

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