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Wang Y, Liang L, Liu J, Guo D, Zhu Z, Dong H. Impact of anaerobic digestion on reactive nitrogen gas emissions from dairy slurry storage. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 316:115306. [PMID: 35594822 DOI: 10.1016/j.jenvman.2022.115306] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 04/24/2022] [Accepted: 05/11/2022] [Indexed: 06/15/2023]
Abstract
Biogas digesters are commonly used to treat animal manure/slurry, and abundant digested slurry is generated during the digestion process. Gas emissions from digested and raw slurry may vary with the change in slurry parameters after digestion, but the mechanism is not well understood. Gas emissions from raw dairy slurry (RS) and digested dairy slurry (BS) during 98 days of storage were investigated in this study to evaluate the effects of anaerobic digestion on reactive nitrogen emissions from slurry storage. Results showed that much higher N2O and NO emission and lower NH3 emission was achieved in BS than in RS. The mean gaseous emission of RS and BS accounted for 27.8% ± 6.9% and 17.1% ± 2.3% of the initial TN for NH3, 0.1% ± 0.1% and 3.5% ± 1.6% of the initial TN for N2O, and 0.0% ± 0.0% and 0.2% ± 0.0% of the initial TN for NO, respectively. Among all detected N2O-forming and reducing microbial genes, the abundance of amoA genes was the most closely related to N2O flux (r = 0.54, p < 0.01). More aerobic conditions occurred in BS, and dissolved oxygen (DO) increased to 0.4-1.6 mg L-1 after 35 days because the low organic matter of BS resulted in good infiltration of surface air into the slurry. The increased DO stimulated the growth of Nitrosomonas and the increase in amoA gene copies and contributed to the high N2O and NO emissions in BS through the nitrification process. Vulcanibacillus, Thauera, Castellaniella, and Thermomonas were the major denitrifying bacteria that occurred in BS and caused an incomplete denitrification process, which could be another reason for the increase in N2O and NO emissions from BS. Our study indicated that anaerobic digestion reduced the organic matter content of the slurry and caused an active microbial environment that facilitated the transformation of slurry N to N2O in BS storage, thus lowering the NH3 emission compared with RS storage. Therefore, aside from NH3, N2O should also be preferentially mitigated during BS storage because N2O is a greenhouse gas with high global warming potential.
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Affiliation(s)
- Yue Wang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, 100081, China; Institute of Plant Nutrition and Resources, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100087, China.
| | - Lina Liang
- Institute of Plant Nutrition and Resources, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100087, China
| | - Jingyi Liu
- Institute of Plant Nutrition and Resources, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100087, China
| | - Dongpo Guo
- Asia Dairy Fab. Ltd, Beijing, 100085, China
| | - Zhiping Zhu
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Hongmin Dong
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
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Zhou M, Li T, Liu P, Zhang S, Liu Y, An T, Zhao H. Real-time on-site monitoring of soil ammonia emissions using membrane permeation-based sensing probe. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 289:117850. [PMID: 34358875 DOI: 10.1016/j.envpol.2021.117850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 07/05/2021] [Accepted: 07/25/2021] [Indexed: 06/13/2023]
Abstract
An ability to real-time, continuously monitor soil ammonia emission profiles under diverse meteorological conditions with high temporal resolution in a simple and maintenance-free fashion can provide the urgently needed scientific insights to mitigate ammonia emission to the atmosphere and improve agricultural fertilization practice. Here, we report an open-chamber deployment unit embedded a gas-permeable membrane-based conductometric sensing probe (OC-GPMCP) capable of on-site continuously monitoring soil ammonia emission flux ( [Formula: see text] ) -time (t) profiles without the need for ongoing calibration. The developed OC-GPMCPs were deployed to a sugarcane field and a cattle farm under different fertilization/meteorological conditions to exemplify their real-world applicability for monitoring soil ammonia emission from agricultural land and livestock farm, respectively. The obtained [Formula: see text] - t profiles from the sugarcane field unveil that the ammonia emission rate is largely determined by fertilization methods and meteorological conditions. While the [Formula: see text] - t profiles from the cattle farm can be decisively correlated to various meteorological conditions. The reported OC-GPMCP is cheap to fabricate, easy to deploy, and maintenance-free to operate. These advantageous features make OC-GPMCP an effective analytical tool for large-scale soil ammonia emission assessment under diverse meteorological conditions, providing critically important scientific insights to mitigate ammonia emission into the atmosphere and improve agricultural fertilization practice.
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Affiliation(s)
- Ming Zhou
- Centre for Clean Environment and Energy, Griffith University, Gold Coast, QLD, 4222, Australia
| | - Tianling Li
- Collaborative Innovation Centre of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing, Jiangsu, 210044, China
| | - Porun Liu
- Centre for Clean Environment and Energy, Griffith University, Gold Coast, QLD, 4222, Australia
| | - Shanqing Zhang
- Centre for Clean Environment and Energy, Griffith University, Gold Coast, QLD, 4222, Australia
| | - Yang Liu
- College of Science and Engineering, James Cook University, Townsville, QLD, 4811, Australia
| | - Taicheng An
- Guangzhou Key Laboratory Environmental Catalysis and Pollution Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou, 510006, China
| | - Huijun Zhao
- Centre for Clean Environment and Energy, Griffith University, Gold Coast, QLD, 4222, Australia.
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Lazcano C, Zhu-Barker X, Decock C. Effects of Organic Fertilizers on the Soil Microorganisms Responsible for N 2O Emissions: A Review. Microorganisms 2021; 9:microorganisms9050983. [PMID: 34062833 PMCID: PMC8147359 DOI: 10.3390/microorganisms9050983] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 04/20/2021] [Accepted: 04/24/2021] [Indexed: 11/16/2022] Open
Abstract
The use of organic fertilizers constitutes a sustainable strategy to recycle nutrients, increase soil carbon (C) stocks and mitigate climate change. Yet, this depends largely on balance between soil C sequestration and the emissions of the potent greenhouse gas nitrous oxide (N2O). Organic fertilizers strongly influence the microbial processes leading to the release of N2O. The magnitude and pattern of N2O emissions are different from the emissions observed from inorganic fertilizers and difficult to predict, which hinders developing best management practices specific to organic fertilizers. Currently, we lack a comprehensive evaluation of the effects of OFs on the function and structure of the N cycling microbial communities. Focusing on animal manures, here we provide an overview of the effects of these organic fertilizers on the community structure and function of nitrifying and denitrifying microorganisms in upland soils. Unprocessed manure with high moisture, high available nitrogen (N) and C content can shift the structure of the microbial community, increasing the abundance and activity of nitrifying and denitrifying microorganisms. Processed manure, such as digestate, compost, vermicompost and biochar, can also stimulate nitrifying and denitrifying microorganisms, although the effects on the soil microbial community structure are different, and N2O emissions are comparatively lower than raw manure. We propose a framework of best management practices to minimize the negative environmental impacts of organic fertilizers and maximize their benefits in improving soil health and sustaining food production systems. Long-term application of composted manure and the buildup of soil C stocks may contribute to N retention as microbial or stabilized organic N in the soil while increasing the abundance of denitrifying microorganisms and thus reduce the emissions of N2O by favoring the completion of denitrification to produce dinitrogen gas. Future research using multi-omics approaches can be used to establish key biochemical pathways and microbial taxa responsible for N2O production under organic fertilization.
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Affiliation(s)
- Cristina Lazcano
- Department of Land, Air and Water Resources, University of California Davis, Davis, CA 95616, USA;
- Correspondence:
| | - Xia Zhu-Barker
- Department of Land, Air and Water Resources, University of California Davis, Davis, CA 95616, USA;
| | - Charlotte Decock
- Natural Resources Management and Environmental Sciences Department, California Polytechnic State University, San Luis Obispo, CA 93407, USA;
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Walling E, Vaneeckhaute C. Greenhouse gas emissions from inorganic and organic fertilizer production and use: A review of emission factors and their variability. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2020; 276:111211. [PMID: 32987233 DOI: 10.1016/j.jenvman.2020.111211] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2019] [Revised: 08/02/2020] [Accepted: 08/06/2020] [Indexed: 06/11/2023]
Abstract
Fertilizers have become an essential part of our global food supply chain and are necessary to sustain our growing population. However, fertilizers can also contribute to greenhouse gas (GHG) emissions, along with other potential nutrient losses in the environment, e.g. through leaching. To reduce this environmental impact, tools such as life cycle assessments and decision support systems are being used to aid in selecting sustainable fertilization scenarios. These scenarios often include organic waste-derived amendments, such as manures, composts and digestates. To produce an accurate assessment and comparison of potential fertilization scenarios, these tools require emission factors (EFs) that are used to estimate GHG emissions and that are an integral part of these analyses. However, such EFs seem to be very variable in nature, thereby often resulting in high uncertainty on the outcomes of the analyses. This review aims to identify ranges and sources of variability in EFs to provide a better understanding of the potential uncertainty on the outcomes, as well as to provide recommendations for selecting EFs for future studies. As such, an extensive review of the literature on GHG emissions from production, storage, transportation and application of synthetic fertilizers (N, P, K), composts, digestates and manures was performed. This paper highlights the high variability that is present in emissions data and confirms the great impact of this uncertainty on the quality and validity of GHG predictions related to fertilizers. Variability in EFs stem from the energy source used for production, operating conditions, storage systems, crop and soil type, soil nutrient content, amount and method of fertilizer application, soil bacterial community, irrigation method, among others. Furthermore, a knowledge gap exists related to EFs for potassium fertilizers and waste valorization (anaerobic digestion/composting) processes. Overall, based on this review, it is recommended to determine EFs on a case by case basis when possible and to use uncertainty analyses as a tool to better understand the impact of EF variability.
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Affiliation(s)
- Eric Walling
- BioEngine - Research Team on Green Process Engineering and Biorefineries, Chemical Engineering Department, Université Laval, 1065 Ave. de La Médecine, Québec, QC, G1V 0A6, Canada; CentrEau, Centre de Recherche sur L'eau, Université Laval, 1065 Avenue de La Médecine, Québec, QC, G1V 0A6, Canada.
| | - Céline Vaneeckhaute
- BioEngine - Research Team on Green Process Engineering and Biorefineries, Chemical Engineering Department, Université Laval, 1065 Ave. de La Médecine, Québec, QC, G1V 0A6, Canada; CentrEau, Centre de Recherche sur L'eau, Université Laval, 1065 Avenue de La Médecine, Québec, QC, G1V 0A6, Canada.
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Lin J, Compton JE, Clark C, Bittman S, Schwede D, Homann PS, Kiffney P, Hooper D, Bahr G, Baron JS. Key components and contrasts in the nitrogen budget across a US-Canadian transboundary watershed. JOURNAL OF GEOPHYSICAL RESEARCH. BIOGEOSCIENCES 2020; 125:10.1029/2019jg005577. [PMID: 34336541 PMCID: PMC8318187 DOI: 10.1029/2019jg005577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Accepted: 05/28/2020] [Indexed: 06/13/2023]
Abstract
Watershed nitrogen (N) budgets provide insights into drivers and solutions for groundwater and surface water N contamination. We constructed a comprehensive N budget for the transboundary Nooksack River Watershed (British Columbia, Canada and Washington, US) using locally-derived data, national statistics and standard parameters. Feed imports for dairy (mainly in the US) and poultry (mainly in Canada) accounted for 30 and 29% of the total N input to the watershed, respectively. Synthetic fertilizer was the next largest source contributing 21% of inputs. Food imports for humans and pets together accounted for 9% of total inputs, lower than atmospheric deposition (10%). N imported by returning salmon representing marine derived nutrients accounted for <0.06 % of total N input. Quantified N export was 80% of total N input, driven by ammonia emission (32% of exports). Animal product export was the second largest output of N (31%) as milk and cattle in the US and poultry products in Canada. Riverine export of N was estimated at 28% of total N export. The commonly used crop nitrogen use efficiency (NUE) metric alone did not provide sufficient information on farming activities but in combination with other criteria such as farm-gate NUE may better represent management efficiency. Agriculture was the primary driver of N inputs to the environment as a result of its regional importance; the N budget information can inform management to minimize N losses. The N budget provides key information for stakeholders across sectors and borders to create environmentally and economically viable and effective solutions.
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Affiliation(s)
- Jiajia Lin
- The Oak Ridge Institute for Science and Education (ORISE). 200 SW 35th St., Corvallis, OR 97333
- U.S. Environmental Protection Agency, Pacific Ecological Systems Division, 200 SW 35th St., Corvallis OR 97333
| | - Jana E. Compton
- U.S. Environmental Protection Agency, Pacific Ecological Systems Division, 200 SW 35th St., Corvallis OR 97333
| | | | | | - Donna Schwede
- U.S. Environmental Protection Agency, Center for Environmental Measurement & Modeling, Research Triangle, NC
| | - Peter S. Homann
- Dept. of Environmental Sciences, Western Washington University, Bellingham, WA
| | - Peter Kiffney
- National Oceanic and Atmospheric Administration, Northwest Fisheries Science Center, Seattle, WA
| | - David Hooper
- Dept. of Biology, Western Washington University, Bellingham, WA
| | - Gary Bahr
- Natural Resources Assessment, Washington State Department of Agriculture, Olympia, WA
| | - Jill S. Baron
- U.S. Geological Survey, Fort Collins Science Center, Fort Collins, CO
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Yang L, Cao H, Yuan Q, Luoa S, Liu Z. Component optimization of dairy manure vermicompost, straw, and peat in seedling compressed substrates using simplex-centroid design. JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION (1995) 2018; 68:215-226. [PMID: 28829690 DOI: 10.1080/10962247.2017.1368736] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Accepted: 08/09/2017] [Indexed: 06/07/2023]
Abstract
UNLABELLED Vermicomposting is a promising method to disposal dairy manures, and the dairy manure vermicompost (DMV) to replace expensive peat is of high value in the application of seedling compressed substrates. In this research, three main components: DMV, straw, and peat, are conducted in the compressed substrates, and the effect of individual components and the corresponding optimal ratio for the seedling production are significant. To address these issues, the simplex-centroid experimental mixture design is employed, and the cucumber seedling experiment is conducted to evaluate the compressed substrates. Results demonstrated that the mechanical strength and physicochemical properties of compressed substrates for cucumber seedling can be well satisfied with suitable mixture ratio of the components. Moreover, DMV, straw, and peat) could be determined at 0.5917:0.1608:0.2475 when the weight coefficients of the three parameters (shoot length, root dry weight, and aboveground dry weight) were 1:1:1. For different purpose, the optimum ratio can be little changed on the basis of different weight coefficients. IMPLICATIONS Compressed substrate is lump and has certain mechanical strength, produced by application of mechanical pressure to the seedling substrates. It will not harm seedlings when bedding out the seedlings, since the compressed substrate and seedling are bedded out together. However, there is no one using the vermicompost and agricultural waste components of compressed substrate for vegetable seedling production before. Thus, it is important to understand the effect of individual components to seedling production, and to determine the optimal ratio of components.
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Affiliation(s)
- Longyuan Yang
- a College of Engineering , Huazhong Agricultural University , Wuhan , People's Republic of China
| | - Hongliang Cao
- a College of Engineering , Huazhong Agricultural University , Wuhan , People's Republic of China
- b Key Laboratory of Agricultural Equipment in Mid-lower Yangtze River , Ministry of Agriculture , Wuhan , People's Republic of China
| | - Qiaoxia Yuan
- a College of Engineering , Huazhong Agricultural University , Wuhan , People's Republic of China
- b Key Laboratory of Agricultural Equipment in Mid-lower Yangtze River , Ministry of Agriculture , Wuhan , People's Republic of China
| | - Shuai Luoa
- a College of Engineering , Huazhong Agricultural University , Wuhan , People's Republic of China
| | - Zhigang Liu
- a College of Engineering , Huazhong Agricultural University , Wuhan , People's Republic of China
- b Key Laboratory of Agricultural Equipment in Mid-lower Yangtze River , Ministry of Agriculture , Wuhan , People's Republic of China
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7
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Cao H, Xin Y, Yuan Q. Prediction of biochar yield from cattle manure pyrolysis via least squares support vector machine intelligent approach. BIORESOURCE TECHNOLOGY 2016; 202:158-164. [PMID: 26708483 DOI: 10.1016/j.biortech.2015.12.024] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2015] [Revised: 12/01/2015] [Accepted: 12/09/2015] [Indexed: 06/05/2023]
Abstract
To predict conveniently the biochar yield from cattle manure pyrolysis, intelligent modeling approach was introduced in this research. A traditional artificial neural networks (ANN) model and a novel least squares support vector machine (LS-SVM) model were developed. For the identification and prediction evaluation of the models, a data set with 33 experimental data was used, which were obtained using a laboratory-scale fixed bed reaction system. The results demonstrated that the intelligent modeling approach is greatly convenient and effective for the prediction of the biochar yield. In particular, the novel LS-SVM model has a more satisfying predicting performance and its robustness is better than the traditional ANN model. The introduction and application of the LS-SVM modeling method gives a successful example, which is a good reference for the modeling study of cattle manure pyrolysis process, even other similar processes.
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Affiliation(s)
- Hongliang Cao
- College of Engineering, Huazhong Agricultural University, No. 1, Shizishan Street, Hongshan District, Wuhan 430070, PR China
| | - Ya Xin
- College of Engineering, Huazhong Agricultural University, No. 1, Shizishan Street, Hongshan District, Wuhan 430070, PR China
| | - Qiaoxia Yuan
- College of Engineering, Huazhong Agricultural University, No. 1, Shizishan Street, Hongshan District, Wuhan 430070, PR China.
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Wang H, Yang SH, Yang JP, Lv YM, Zhao X, Pang JL. Temporal changes in soil bacterial and archaeal communities with different fertilizers in tea orchards. J Zhejiang Univ Sci B 2015; 15:953-65. [PMID: 25367788 DOI: 10.1631/jzus.b1400114] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
It is important to understand the effects of temporal changes in microbial communities in the acidic soils of tea orchards with different fertilizers. A field experiment involving organic fertilizer (OF), chemical fertilizer (CF), and unfertilized control (CK) treatments was arranged to analyze the temporal changes in the bacterial and archaeal communities at bimonthly intervals based on the 16S ribosomal RNA (rRNA) gene using terminal restriction fragment length polymorphism (T-RFLP) profiling. The abundances of total bacteria, total archaea, and selected functional genes (bacterial and archaeal amoA, bacterial narG, nirK, nirS, and nosZ) were determined by quantitative polymerase chain reaction (qPCR). The results indicate that the structures of bacterial and archaeal communities varied significantly with time and fertilization based on changes in the relative abundance of dominant T-RFs. The abundancy of the detected genes changed with time. The total bacteria, total archaea, and archaeal amoA were less abundant in July. The bacterial amoA and denitrifying genes were less abundant in September, except the nirK gene. The OF treatment increased the abundance of the observed genes, while the CF treatment had little influence on them. The soil temperature significantly affected the bacterial and archaeal community structures. The soil moisture was significantly correlated with the abundance of denitrifying genes. Of the soil chemical properties, soil organic carbon was the most important factor and was significantly correlated with the abundance of the detected genes, except the nirK gene. Overall, this study demonstrated the effects of both temporal alteration and organic fertilizer on the structures of microbial communities and the abundance of genes involved in the nitrogen cycle.
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Affiliation(s)
- Hua Wang
- Institute of Environmental Protection, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China; College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 310036, China
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Sawada K, Toyota K. Effects of the application of digestates from wet and dry anaerobic fermentation to Japanese paddy and upland soils on short-term nitrification. Microbes Environ 2015; 30:37-43. [PMID: 25740173 PMCID: PMC4356462 DOI: 10.1264/jsme2.me14080] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Wet and dry anaerobic fermentation processes are operated for biogas production from organic matter, resulting in wet and dry digestates as by-products, respectively. The application of these digestates to soil as fertilizer has increased in recent years. Therefore, we herein compared the effects of applying wet digestates (pH 8.2, C/N ratio 4.5), dry digestates (pH 8.8, C/N ratio 23.4), and a chemical fertilizer to Japanese paddy and upland soils on short-term nitrification under laboratory aerobic conditions. Chloroform-labile C, an indicator of microbial biomass, was only minimally affected by these applications, indicating that a small amount of labile N was immobilized by microbes. All applications led to rapid increases in NO3 -N contents in both soils, and ammonia-oxidizing bacteria, but not archaea may play a critical role in net nitrification in the amended soils. The net nitrification rates for both soils were the highest after the application of dry digestates, followed by wet digestates and then the chemical fertilizer in order of decreasing soil pH. These results suggest that the immediate effects of applying digestates, especially dry digestates with the highest pH, on nitrate leaching need to be considered when digestates are used as alternative fertilizers.
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Affiliation(s)
- Kozue Sawada
- Institute of Symbiotic Science and Technology, Tokyo University of Agriculture and Technology
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10
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Su JQ, Ding LJ, Xue K, Yao HY, Quensen J, Bai SJ, Wei WX, Wu JS, Zhou J, Tiedje JM, Zhu YG. Long-term balanced fertilization increases the soil microbial functional diversity in a phosphorus-limited paddy soil. Mol Ecol 2014; 24:136-50. [DOI: 10.1111/mec.13010] [Citation(s) in RCA: 144] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2014] [Revised: 11/13/2014] [Accepted: 11/17/2014] [Indexed: 12/18/2022]
Affiliation(s)
- Jian-Qiang Su
- Key Lab of Urban Environment and Health; Institute of Urban Environment; Chinese Academy of Sciences; Xiamen 361021 China
| | - Long-Jun Ding
- State Key Lab of Urban and Regional Ecology; Research Center for Eco-environmental Sciences; Chinese Academy of Sciences; Beijing 100085 China
| | - Kai Xue
- Department of Microbiology and Plant Biology; Institute for Environmental Genomics; University of Oklahoma; 101 David L Boren Blvd Norman OK 73019 USA
| | - Huai-Ying Yao
- Key Lab of Urban Environment and Health; Institute of Urban Environment; Chinese Academy of Sciences; Xiamen 361021 China
| | - John Quensen
- Center for Microbial Ecology; Department of Plant, Soil and Microbial Sciences; Michigan State University; East Lansing MI 48824 USA
| | - Shi-Jie Bai
- Department of Microbiology and Plant Biology; Institute for Environmental Genomics; University of Oklahoma; 101 David L Boren Blvd Norman OK 73019 USA
| | - Wen-Xue Wei
- Key Laboratory of Agro-ecological Processes in Subtropical Regions and Taoyuan Station of Agro-ecology Research; Institute of Subtropical Agriculture; Chinese Academy of Sciences; Changsha 410125 China
| | - Jin-Shui Wu
- Key Laboratory of Agro-ecological Processes in Subtropical Regions and Taoyuan Station of Agro-ecology Research; Institute of Subtropical Agriculture; Chinese Academy of Sciences; Changsha 410125 China
| | - Jizhong Zhou
- Department of Microbiology and Plant Biology; Institute for Environmental Genomics; University of Oklahoma; 101 David L Boren Blvd Norman OK 73019 USA
- Earth Science Division; Lawrence Berkeley National Laboratory; Berkeley CA 94720 USA
- State Key Joint Laboratory of Environment Simulation and Pollution Control; School of Environment; Tsinghua University; Beijing 100084 China
| | - James M. Tiedje
- Center for Microbial Ecology; Department of Plant, Soil and Microbial Sciences; Michigan State University; East Lansing MI 48824 USA
| | - Yong-Guan Zhu
- Key Lab of Urban Environment and Health; Institute of Urban Environment; Chinese Academy of Sciences; Xiamen 361021 China
- State Key Lab of Urban and Regional Ecology; Research Center for Eco-environmental Sciences; Chinese Academy of Sciences; Beijing 100085 China
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11
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Cao H, Xin Y, Wang D, Yuan Q. Pyrolysis characteristics of cattle manures using a discrete distributed activation energy model. BIORESOURCE TECHNOLOGY 2014; 172:219-225. [PMID: 25262431 DOI: 10.1016/j.biortech.2014.09.049] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2014] [Revised: 09/10/2014] [Accepted: 09/11/2014] [Indexed: 06/03/2023]
Abstract
The pyrolysis characteristics of cattle manures were conducted using a discrete distributed activation energy model (DAEM) coupled with the thermogravimetric analysis. The results showed that the pyrolysis process can be accurately characterized by 27 dominating reactions, and the dominating reactions form four groups to represent respectively the decomposition processes of the different constituents of cattle manures. Moreover, the devolatilization kinetics under the heating rate changing from 0.1Kmin(-1) to 10,000Kmin(-1) were predicted with the discrete DAEM. Prediction results demonstrated that with increasing the heating rate, the main decomposition regions of individual constituent become more and more concentration and their interactions are more and more complex. Particularly, it was interesting to discover that the peak decomposition rate is perfectly proportional to the heating rate, and the peak, starting and ending decomposition temperatures satisfy a relationship of quadratic function with the common logarithm of the heating rate.
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Affiliation(s)
- Hongliang Cao
- College of Engineering, Huazhong Agricultural University, No. 1, Shizishan Street, Hongshan District, Wuhan 430070, PR China
| | - Ya Xin
- College of Engineering, Huazhong Agricultural University, No. 1, Shizishan Street, Hongshan District, Wuhan 430070, PR China
| | - Dianlong Wang
- College of Engineering, Huazhong Agricultural University, No. 1, Shizishan Street, Hongshan District, Wuhan 430070, PR China
| | - Qiaoxia Yuan
- College of Engineering, Huazhong Agricultural University, No. 1, Shizishan Street, Hongshan District, Wuhan 430070, PR China.
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