Abstract
The production of energy crops for farm-scale anaerobic digestion (AD) can affect emissions of greenhouse gases (GHG) in a number of ways. Some examples are: fugitive CH4 emissions from the digester and the storage of the digestate, emissions of N2O from soil and emissions of CO2 from farm machinery. Moreover, uptake of AD may be accompanied by changes in the way the farm is operated, which may affect GHG emissions. The scale of these emissions was assessed from published data for the biogas feedstocks cattle slurry and grass silage. Emissions were compared to references representing current farm operation and energy generation by fossil fuels. Feeding the digester with cattle slurry for the entire year did not result in reduced emissions due to relatively high emissions from stored raw slurry in summer. If grass was used for digester feedstock, the level of N2O emissions from the crop was the most important factor for the GHG balance of farm-scale AD. If N2O emissions were low, biogas realised substantial savings of GHG in the order of 1Â t CO2 equivalents per hectare per year. At a high level of N2O emissions, energy cropping might even result in increased GHG emissions compared to fossil fuels.
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References
Rogner H, Zhou D, Bradley R, Crabbé P, Edenhofer O, Hare B, Kuijpers L, Yamguchi M (2007) Introduction. In: Metz B, Davidson O, Bosch P, Dave R, Meyer L (eds) Climate change 2007: mitigation. Cambridge University Press, Cambridge, pp 95–116
EPA (2010) Ireland’s greenhouse gas emissions projections 2010–2020. Wexford
Braun R (2007) Anaerobic digestion: a multi-faceted process for energy, environmental management and rural development. In: Ranalli P (ed) Improvement of crop plants for industrial end uses. Springer, Dordrecht, pp 335–416
Weiland P (2006) Biomass digestion in agriculture: a successful pathway for the energy production and waste treatment in Germany. Eng Life Sci 6:302–309
Gemmeke B, Rieger C, Weiland P, Schröder J, Plogsties V, Kissel R, Bachmaier H, Vogtherr J, Schumacher B (2009) Biogas-Messprogramm II. vTI Institut für Agrartechnologie und Biosystemtechnik, Braunschweig
Liebetrau J, Clemens J, Cuhls C, Hafermann C, Friehe J, Weiland P, Daniel-Gromke J (2010) Methane emissions from biogas-producing facilities within the agricultural sector. Eng Life Sci 10:595–599
Forster P, Ramaswamy V, Artaxo P, Berntsen T, Betts R, Fahey D, Haywood J, Lean J, Lowe D, Myhre G, Nganga J, Prinn R, Raga G, Schulz M, van Dorland R (2007) Changes in atmospheric constituents and in radiative forcing. In: Solomon S, Qin D, Manning M et al (eds) Climate change 2007: the physical science basis Contribution of Working Group I to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change. Cambridge University Press, Cambridge, pp 129–234
Sims R (2003) Bioenergy to mitigate for climate change and meet the needs of society, the economy and the environment. Mitig Adapt Strat Glob Chang 8:349–370
Dieterich B (2011) The energy potential and greenhouse gas balance of biogas production from grass in Ireland. University College Dublin, Dublin
Elsayed M, Matthews R, Mortimer N (2003) Carbon and energy balances for a range of biofuels options. Sheffield Hallam University, Sheffield
Amon B, Kryvoruchko V, Amon T, Zechmeister-Boltenstern S (2006) Methane, nitrous oxide and ammonia emissions during storage and after application of dairy cattle slurry and influence of slurry treatment. Agric Ecosyst Environ 112:153–162
Sommer S, Petersen S, Sogaard H (2000) Greenhouse gas emission from stored livestock slurry. J Environ Qual 29:744–751
Wulf S, Maeting M, Clemens J (2002) Application technique and slurry co-fermentation effects on ammonia, nitrous oxide, and methane emissions after spreading: II Greenhouse gas emissions. J Environ Qual 31:1795–1801
Crutzen P, Mosier A, Smith K, Winiwarter W (2008) N2O release from agro-biofuel production negates global warming reduction by replacing fossil fuels. Atmos Chem Phys 8:389–395
O’Mara F (2006) Climate change—development of emission factors for the Irish cattle herd EPA. Wexford, Ireland
Granli T, BØckman O (1994) Nitrous oxide from agriculture. Nor J Agric Sci Suppl 12:128
De Klein C, Sherlock R, Cameron K, Van der Weerden T (2001) Nitrous oxide emissions from agricultural soils in New Zealand—a review of current knowledge and directions for future research. J Roy Soc NZ 31:543–574
Petersen S (1999) Nitrous oxide emissions from manure and inorganic fertilizers applied to spring barley. J Environ Qual 28:1610–1618
Dalgaard T, Halberg N, Porter J (2001) A model for fossil energy use in Danish agriculture used to compare organic and conventional farming. Agric Ecosyst Environ 87:51–65
Dillon P, Hennessy T, Shalloo L, Thorne F, Horan B (2008) Future outlook for the Irish dairy industry: a study of international competitiveness, influence of international trade reform and requirement for change. Int J Dairy Technol 61:16–29
Creighton P, Kennedy E, Shalloo L, Boland T, O’Donovan M (2011) A survey analysis of grassland dairy farming in Ireland, investigating grassland management, technology adoption and sward renewal. Grass Forage Sci 66:251–264
Treacy M, Humphreys J, McNamara K, Browne R, Watson C (2008) Farm-gate nitrogen balances on intensive dairy farms in the south west of Ireland. Irish J Agric Food Res 47:105–117
Möller K, Stinner W (2009) Effects of different manuring systems with and without biogas digestion on soil mineral nitrogen content and on gaseous nitrogen losses (ammonia, nitrous oxides). Eur J Agron 30:1–16
Wulf S, Maeting M, Clemens J (2002) Application technique and slurry co-fermentation effects on ammonia, nitrous oxide and methane emissions after spreading: I Ammonia volatilization. J Environ Qual 31:1789–1794
Baumann H, Tillman A (2004) The hitch hiker’s guide to LCA. Studentlitteratur, Lund
Frost P, Gilkinson S (2010) First year performance summary for anaerobic digestion of dairy cow slurry at AFBI Hillsborough. Agri-Food and Biosciences Institute, NI, Hillsborough
Connolly L, Kinsella A, Quinlan G, Moran B (2010) National Farm Survey 2009. Teagasc Farm Surveys Department, Athenry
Hyde B, Carton O, Murphy W (2006) Farm facilities survey—Ireland 2003. Teagasc, Wexford
Carton O, Magett W (1999) Land spreading of animal manures, farm wastes & non-agricultural organic wastes Part 1. Manure (and other organic wastes) management guidelines for intensive agricultural enterprises. Rural Environmental Series. Johnstown Castle Research Centre, Wexford, Ireland
Coulter B, Lalor S, Alexander S, Black A, Boland A, Burke J, Carton O, Culleton N, Dillon P, Hackett R, Humphreys J, Keady T, McHoul J, Merfield C, Murphy B, O’Kiely P, O’Riordan E, Orlovius K, Plunkett M, Schulte R, Tunney H (2008) Major and micro nutrient advice for productive agricultural crops, 3rd edn. Teagasc, Johnstown Castle, Wexford
McEniry J, O’Kiely P, Clipson N, Forristal P, Doyle E (2006) The microbiological and chemical composition of baled and precision-chop silages on a sample of farms in county Meath. Irish J Agric Food Res 45:73–83
Bachmaier J, Effenberger M, Gronauer A (2010) Greenhouse gas balance and resource demand of biogas plants in agriculture. Eng Life Sci 10:560–569
Scholwin F, Michel J, Schröder G, Kalies M (2006) Ökologische Analyse einer Biogasnutzung aus nachwachsenden Rohstoffen. Institut für Energetik und Umwelt, Leipzig
Eder B, Schulz H (2007) Biogas Praxis. 4 edn. Ökobuch, Staufen bei Freiburg
Dachs G, Rehm W, Eberl S, Horschak G, Schilling J (2006) Der Eigenstromverbrauch von Biogasanlagen und Potenziale zu dessen Reduzierung. BASE Technologies Munich University of Applied Sciences, Munich
MartÃnez-Suller L, Provolo G, Carton O, Brennan D, Kirwan L, Richards K (2010) The composition of dirty water on dairy farms in Ireland. Irish J Agric Food Res 49:67–80
Finch H, Samuel A, Lane G (2002) Lockhart & Wiseman’s crop husbandry, 8th edn. Woodhead, Cambridge
Prochnow A, Heiermann M, Plöchl M, Linke B, Idler C, Amon T, Hobbs P (2009) Bioenergy from permanent grassland—a review: 1. Biogas. Bioresour Technol 100:4931–4944
Møller H, Sommer S, Ahring B (2004) Methane productivity of manure, straw and solid fractions of manure. Biomass Bioenergy 26:485–495
Karpenstein-Machan M (2005) Energiepflanzenbau für Biogasanlagenbetreiber. DLG, Frankfurt
Tambone F, Scaglia B, D’Imporzano G, Schievano A, Orzi V, Salati S, Adani F (2010) Assessing amendment and fertilizing properties of digestates from anaerobic digestion through a comparative study with digested sludge and compost. Chemosphere 81:577–583
Sørensen P, Møller H (2009) Fate of nitrogen in pig and cattle slurries applied to the soil-crop system. In: Adani F, Schievano A, Boccasile G (eds) Anaerobic digestion: opportunities for agriculture and environment. University of Milan, Milan, pp 27–37
BHKW-Forum Die BHKW-Infothek (2013) Accessed 19 May
Amon B, Moitzi G, Schimpl M, Kryvoruchko V, Wagner-Alt C (2002) Methane, nitrous oxide and ammonia emissions from management of liquid manures (trans: Institut für Land-UuE). Universität für Bodenkultur Wien, Wien
Sommer S, Petersen S, Moller H (2004) Algorithms for calculating methane and nitrous oxide emissions from manure management. Nutr Cycl Agroecosyst 69:143–154
Dinuccio E, Berg W, Balsari P (2008) Gaseous emissions from the storage of untreated slurries and the fractions obtained after mechanical separation. Atmos Environ 42:2448–2459
Chadwick D, Pain B, Brookman S (2000) Nitrous oxide and methane emissions following application of animal manures to grassland. J Environ Qual 29:277–287
Sherlock R, Sommer S, Khan R, Wood C, Guertal E, Freney J, Dawson C, Cameron K (2002) Ammonia, methane, and nitrous oxide emission from pig slurry applied to a pasture in New Zealand. J Environ Qual 31:1491–1501
Dieterich B, Finnan J, Frost P, Gilkinson S, Müller C (2012) The extent of methane (CH4) emissions after fertilisation of grassland with digestate. Biol Fertil Soil 48:981–985
Møller H, Sommer S, Ahring B (2004) Biological degradation and greenhouse gas emissions during pre-storage of liquid animal manure. J Environ Qual 33:27–36
Flessa H, Ruser R, Dörsch P, Kamp T, Jimenez M, Munch J, Beese F (2002) Integrated evaluation of greenhouse gas emissions (CO2, CH4, N2O) from two farming systems in southern Germany. Agric Ecosyst Environ 91:175–189
Sommer S, Genermont S, Cellier P, Hutchings N, Olesen J, Morvan T (2003) Processes controlling ammonia emission from livestock slurry in the field. Eur J Agron 19:465–486
De Klein C, Novoa R, Ogle S, Smith K, Rochette P, Wirth T, McConkey B, Mosier A, Rypdal K, Walsh M, Williams S (2006) N2O emissions from managed soils, and CO2 emissions from lime and urea application. In: Eggleston S, Buendia L, Miwa K, Ngara T, Tanabe K (eds) 2006 IPCC Guidelines for National Greenhouse Gas Inventories Institute for Global Environmental Strategies, Hayama, pp .11.11–11.54
Anon (2006) S.I. 378 of 2006, European Communities (Good Agricultural Practice for Protection of Waters) Regulations 2006
McSwiney C, Robertson G (2005) Nonlinear response of N2O flux to incremental fertilizer addition in a continuous maize (Zea mays L.) cropping system. Glob Chang Biol 11:1712–1719
Zebarth B, Rochette P, Burton D (2008) N2O emissions from spring barley production as influenced by fertilizer nitrogen rate. Can J Soil Sci 88:197–205
Cardenas LM, Thorman R, Ashlee N, Butler M, Chadwick D, Chambers B, Cuttle S, Donovan N, Kingston H, Lane S, Dhanoa MS, Scholefield D (2010) Quantifying annual N2O emission fluxes from grazed grassland under a range of inorganic fertiliser nitrogen inputs. Agric Ecosyst Environ 136:218–226
Rafique R, Hennessy D, Kiely G (2011) Nitrous oxide emission from grazed grassland under different management systems. Ecosystems 14:563–582
Fruergaard T, Astrup T, Ekvall T (2009) Energy use and recovery in waste management and implications for accounting of greenhouse gases and global warming contributions. Waste Manage Res 27:724–737
Styles D, Jones M (2007) Energy crops in Ireland: an assessment of their potential contribution to sustainable agriculture, electricity and heat production. EPA, Wexford, Johnstown Castle
Galloway J, Aber J, Erisman J, Seitzinger S, Howarth R, Cowling E, Cosby B (2003) The nitrogen cascade. BioScience 53:341–356
Dobbie K, Smith K (2003) Impact of different forms of N fertilizer on N2O emissions from intensive grassland. Nutr Cycl Agroecosyst 67:37–46
Clayton H, Mc Taggart I, Parker J, Swan L, Smith K (1997) Nitrous oxide emission from fertilised grassland: a 2-year study of the effects of fertiliser form and environmental conditions. Biol Fertil Soil 25:252–260
Grant R, Pattey E, Goddard T, Kryzanowski L, Puurveen H (2006) Modeling the effects of fertilizer application rate on nitrous oxide emissions. Soil Sci Soc Am J 70:235–248
Van Groenigen J, Velthof G, Oenema O, Van Groenigen K, Van Kessel C (2010) Towards an agronomic assessment of N2O emissions: a case study for arable crops. Eur J Soil Sci 61:903–913
Fowler D, Skiba U, Hargreaves KJ (1997) Emissions of nitrous oxide from grasslands. In: Jarvis S, Pain B (eds) Gaseous nitrogen emissions from grasslands. CAB International, Wallingford, pp 147–162
Weiland P (2010) Biogas production: current state and perspectives. Appl Microbiol Biotechnol 85:849–860
Anon (2009) Directive 2009/28/EC of the European Parliament and of the Council on the promotion of the use of energy from renewable sources
Banks C, Salter A, Chesshire M (2007) Potential of anaerobic digestion for mitigation of greenhouse gas emissions and production of renewable energy from agriculture: barriers and incentives to widespread adoption in Europe. Water Sci Technol 55(10):165–173
Acknowledgments
This investigation was part of a larger research project financed by the Department of Agriculture, Fisheries and Food of the Republic of Ireland (Research Stimulus Programme, RSF 07-506). The authors would furthermore like to express their gratitude to the following experts for sharing their knowledge with us in the course of the writing of this paper: Dr. Barbara Amon (University of Natural Resources and Life Sciences, Vienna, Austria), Dr. Owen Carton (Teagasc, Oak Park, Ireland), Mr. Dermot Forristal (Teagasc, Oak Park), Dr. Peter Frost (AFBINI, Hillsborough, Northern Ireland), Mr. Stephen Gilkinson (AFBINI, Hillsborough), Dr. Trevor Gilliland (AFBINI, Crossnacreevy, Northern Ireland), Dr. Andreas Lemmer (State Agency for Agricultural Engineering and Bioenergy, University of Hohenheim, Germany), Dr. Joseph McEniry (Teagasc, Grange, Ireland), Mr. Jörg Messner (LAZBW, Aulendorf, Germany) and Dr. Padraig O’Kiely (Teagasc, Grange).
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Dieterich, B., Finnan, J., Hochstrasser, T. et al. The Greenhouse Gas Balance of a Dairy Farm as Influenced by the Uptake of Biogas Production. Bioenerg. Res. 7, 95–109 (2014). https://doi.org/10.1007/s12155-013-9350-3
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DOI: https://doi.org/10.1007/s12155-013-9350-3