Environmental assessment of two different crop systems in terms of biomethane potential production

被引:75
作者
Bacenetti, Jacopo [1 ]
Fusi, Alessandra [1 ]
Negri, Marco [1 ]
Guidetti, Riccardo [1 ]
Fiala, Marco [1 ]
机构
[1] Univ Milan, Dept Agr & Environm Sci, I-20133 Milan, Italy
关键词
Energy crops; Anaerobic digestion; Life cycle assessment; Environmental sustainability; Biogas; LIFE-CYCLE ASSESSMENT; GREENHOUSE-GAS EMISSIONS; ANAEROBIC-DIGESTION; BIOGAS PLANTS; AGRICULTURAL PRODUCTION; RESOURCE DEMAND; COMBINED HEAT; POWER-PLANTS; IMPACT; NITROGEN;
D O I
10.1016/j.scitotenv.2013.07.109
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
The interest in renewable energy sources has gained great importance in Europe due to the need to reduce fossil energy consumption and greenhouse gas emissions, as required by the Renewable Energy Directive (RED) of the European Parliament. The production of energy from energy crops appears to be consistent with RED. The environmental impact related to this kind of energy primarily originates from crop cultivation. This research aimed to evaluate the environmental impact of different crop systems for biomass production: single and double crop. The environmental performances of maize and maize plus wheat were assessed from a life cycle perspective. Two alternative scenarios considering different yields, crop management, and climatic conditions, were also addressed. One normal cubic metre of potential methane was chosen as a functional unit. Methane potential production data were obtained through lab experimental tests. For both of the crop systems, the factors that have the greatest influence on the overall environmental burden are: fertilizer emissions, diesel fuel emissions, diesel fuel production, and pesticide production. Notwithstanding the greater level of methane potential production, the double crop system appears to have the worse environmental performance with respect to its single crop counterpart. This result is due to the bigger quantity of inputs needed for the double crop system. Therefore, the greater amount of biomass (silage) obtained through the double crop system is less than proportional to the environmental burden that results from the bigger quantity of inputs requested for double crop. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码:1066 / 1077
页数:12
相关论文
共 59 条
[1]   Codigestion of manure and organic wastes in centralized biogas plants - Status and future trends [J].
Angelidaki, I ;
Ellegaard, L .
APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY, 2003, 109 (1-3) :95-105
[2]  
[Anonymous], 2008, INTRO LCA SIMAPRO 7
[3]   Anaerobic digestion in global bio-energy production: Potential and research challenges [J].
Appels, Lise ;
Lauwers, Joost ;
Degreve, Jan ;
Helsen, Lieve ;
Lievens, Bart ;
Willems, Kris ;
Van Impe, Jan ;
Dewil, Raf .
RENEWABLE & SUSTAINABLE ENERGY REVIEWS, 2011, 15 (09) :4295-4301
[4]  
Audsley E., 1997, AIR3CT942028 EUR COM, P1
[5]  
Bacenetti J, 2012, P CIGR AGENG INT C A
[6]  
Bacenetti J, 2012, J AGRIC ENG-ITALY, V43, P72, DOI [10.4081/jae.2012.14, 10.4081/jae.2012.e11]
[7]   Anaerobic digestion of different feedstocks: Impact on energetic and environmental balances of biogas process [J].
Bacenetti, Jacopo ;
Negri, Marco ;
Fiala, Marco ;
Gonzalez-Garcia, Sara .
SCIENCE OF THE TOTAL ENVIRONMENT, 2013, 463 :541-551
[8]   Changes in greenhouse gas balance and resource demand of biogas plants in southern Germany after a period of three years [J].
Bachmaier, Hans ;
Effenberger, Mathias ;
Gronauer, Andreas ;
Boxberger, Josef .
WASTE MANAGEMENT & RESEARCH, 2013, 31 (04) :368-375
[9]   Greenhouse gas balance and resource demand of biogas plants in agriculture [J].
Bachmaier, Johannes ;
Effenberger, Mathias ;
Gronauer, Andreas .
ENGINEERING IN LIFE SCIENCES, 2010, 10 (06) :560-569
[10]   Grain N and P relationships in maize [J].
Belanger, Gilles ;
Claessens, Annie ;
Ziadi, Noura .
FIELD CROPS RESEARCH, 2012, 126 :1-7