Abstract
This study aims to determine cumulative energy and exergy consumption in sugarcane and sugar beet production systems in Iran and evaluate their environmental performance. Cumulative energy and exergy consumption, cumulative degree of perfection, and renewability index for sugarcane production were 66,500 MJ/ha, 82,561 MJ/ha, 6.21, and 0.86, respectively, and these values were 48,267 MJ/ha, 67,984 MJ/ha, 165,831 MJ/ha, 6.42, and 0.84 for sugar beet production, respectively. The GHG emissions for sugarcane and sugar beet production were 4,785 kg CCO2-eq/ha and 2,851 kg CCO2-eq/ha, respectively, of which about 90% is due to direct and indirect energy consumption for irrigation.
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