Energy and Greenhouse Gases Balances of Cotton Farming in Iran: A Case Study
This study evaluated the impacts of cotton farming on the climate changes in terms of energy and greenhouse gas (GHG) emission indices. Energy consumption pattern and sensitivity of energy inputs were evaluated and share of each input in GHG emissions was determined in the form of direct and indirec...
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| Format: | Article |
| Language: | English |
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Mendel University Press
2018-01-01
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| Series: | Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis |
| Subjects: | |
| Online Access: | https://acta.mendelu.cz/66/1/0101/ |
| _version_ | 1819102592909705216 |
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| author | Moslem Sami Habib Reyhani |
| author_facet | Moslem Sami Habib Reyhani |
| author_sort | Moslem Sami |
| collection | DOAJ |
| description | This study evaluated the impacts of cotton farming on the climate changes in terms of energy and greenhouse gas (GHG) emission indices. Energy consumption pattern and sensitivity of energy inputs were evaluated and share of each input in GHG emissions was determined in the form of direct and indirect emissions for cotton farms in Golestan province of Iran. The total energy input and energy output were calculated to be 34,424.19 and 41,496.67 MJ/ha respectively. The share of fertilizers by 45.0 % of total energy inputs was the highest. This was followed by energies of fuel (18.4 %) and irrigation (17.9 %) respectively. Fertilizers and fuels were also the biggest producers of GHGs in the farms with shares of 61.95 and 24.32 % of total GHGs emission. Energy ratio, energy balance, energy intensity and energy productivity were found as 1.21, 7,072.48 MJ/ha, 9.79 MJ/kg and 0.10 kg/MJ, respectively. Results of sensitivity analysis indicated that the cotton production was more sensitive to energies of seed and human labour than other inputs and an additional use of 1 MJ of each of these inputs would lead to a change in the yield by −0.75 and 0.73 kg/ha, respectively. The results also showed, in the process of cotton farming 897.80 and 1177.67 kg CO2 – equivalent of direct and indirect GHG were emitted per hectare respectively. |
| first_indexed | 2024-12-22T01:37:01Z |
| format | Article |
| id | doaj.art-65952c051e114098a2ffa7d345b99cf8 |
| institution | Directory Open Access Journal |
| issn | 1211-8516 2464-8310 |
| language | English |
| last_indexed | 2024-12-22T01:37:01Z |
| publishDate | 2018-01-01 |
| publisher | Mendel University Press |
| record_format | Article |
| series | Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis |
| spelling | doaj.art-65952c051e114098a2ffa7d345b99cf82022-12-21T18:43:20ZengMendel University PressActa Universitatis Agriculturae et Silviculturae Mendelianae Brunensis1211-85162464-83102018-01-0166110110910.11118/actaun201866010101Energy and Greenhouse Gases Balances of Cotton Farming in Iran: A Case StudyMoslem Sami0Habib Reyhani1Agriculture Bank of Iran, Isfahan, IranDepartment of Agricultural Machinery Engineering, Faculty of Agricultural Engineering and Technology, University of Tehran, Karaj, IranThis study evaluated the impacts of cotton farming on the climate changes in terms of energy and greenhouse gas (GHG) emission indices. Energy consumption pattern and sensitivity of energy inputs were evaluated and share of each input in GHG emissions was determined in the form of direct and indirect emissions for cotton farms in Golestan province of Iran. The total energy input and energy output were calculated to be 34,424.19 and 41,496.67 MJ/ha respectively. The share of fertilizers by 45.0 % of total energy inputs was the highest. This was followed by energies of fuel (18.4 %) and irrigation (17.9 %) respectively. Fertilizers and fuels were also the biggest producers of GHGs in the farms with shares of 61.95 and 24.32 % of total GHGs emission. Energy ratio, energy balance, energy intensity and energy productivity were found as 1.21, 7,072.48 MJ/ha, 9.79 MJ/kg and 0.10 kg/MJ, respectively. Results of sensitivity analysis indicated that the cotton production was more sensitive to energies of seed and human labour than other inputs and an additional use of 1 MJ of each of these inputs would lead to a change in the yield by −0.75 and 0.73 kg/ha, respectively. The results also showed, in the process of cotton farming 897.80 and 1177.67 kg CO2 – equivalent of direct and indirect GHG were emitted per hectare respectively.https://acta.mendelu.cz/66/1/0101/cottonefficiency evaluationenergy analysisGHG emission |
| spellingShingle | Moslem Sami Habib Reyhani Energy and Greenhouse Gases Balances of Cotton Farming in Iran: A Case Study Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis cotton efficiency evaluation energy analysis GHG emission |
| title | Energy and Greenhouse Gases Balances of Cotton Farming in Iran: A Case Study |
| title_full | Energy and Greenhouse Gases Balances of Cotton Farming in Iran: A Case Study |
| title_fullStr | Energy and Greenhouse Gases Balances of Cotton Farming in Iran: A Case Study |
| title_full_unstemmed | Energy and Greenhouse Gases Balances of Cotton Farming in Iran: A Case Study |
| title_short | Energy and Greenhouse Gases Balances of Cotton Farming in Iran: A Case Study |
| title_sort | energy and greenhouse gases balances of cotton farming in iran a case study |
| topic | cotton efficiency evaluation energy analysis GHG emission |
| url | https://acta.mendelu.cz/66/1/0101/ |
| work_keys_str_mv | AT moslemsami energyandgreenhousegasesbalancesofcottonfarminginiranacasestudy AT habibreyhani energyandgreenhousegasesbalancesofcottonfarminginiranacasestudy |