1. Sustainability of environmental impacts and life cycle energy and economic analysis for different methods of grape and olive production
- Author
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Asmaeil Rahmani, Mohammad Gholami Parashkoohi, and Davood Mohammad Zamani
- Subjects
Energy use efficiency ,Life cycle assessment ,General Energy ,Sustainability ,Economic productivity ,Electrical engineering. Electronics. Nuclear engineering ,Horticultural crops ,TK1-9971 - Abstract
In recent decades, the growth of energy consumption and environmental pollution has increased significantly. The purpose of this study is to provide a suitable solution for energy, economic and environmental analysis in grape and olive production. The energy output of grapes in traditional and semi-mechanized production was 253110 MJ ha−1 and 284380 MJ ha−1, respectively. Also, olive energy output in traditional and semi-mechanized production was 56286 MJ ha−1 and 83780 MJ ha−1, respectively. Nitrogen consumption in both production methods also has the largest share of energy among the total energy of inputs with about 32 to 47%. The energy use efficiency of semi-mechanized grape production, traditional grape production, semi-mechanized olive production and traditional olive production were reported as 11.26, 9.66, 3.11 and 1.63, respectively. In economic results, the semi-mechanized grape production had a high profit to cost ratio (5.83) and productivity (38.88 kg $−1). The results of life cycle assessment of the two studied products showed that the highest value of aquatic eutrophication is related to the traditional production of olives (1051724.94 kg PO4- P limited) and the lowest value of this effect is related to the semi-mechanized production of grapes (106102.43 kg PO4- P limited). The values of global warming (865.01, 416.56, 143.23 and 122.17) kg CO2eq are related to traditional olive production, semi-mechanized olive production, traditional grape production and semi-mechanized grape cultivation, respectively. The most contaminants in the traditional method of olive (8688.52 PDF*m2*yr) and semi-mechanized olive (3869.91 MJ primary) were related to ecosystem quality and resources, respectively. The emissions of electricity, diesel fuel and machinery were higher in semi-mechanized production than in traditional production. According to results of energy, economic and environmental impacts semi-mechanized cultivation in two crops is better than traditional cultivation.
- Published
- 2022
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