Impact of Crop Diversification and Groundwater Pumping Efficiency on Carbon-Dioxide Emission
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Authors
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Sunil Garg
Deptt. of Soil & Water Engineering, Punjab Agricultural University, Ludhiana-141004, Punjab, India
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Bikash Datta
Deptt. of Soil & Water Engineering, Punjab Agricultural University, Ludhiana-141004, Punjab, India
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Mahesh Chand Singh
Deptt. of Soil & Water Engineering, Punjab Agricultural University, Ludhiana-141004, Punjab, India
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Sanjay Satpute
Deptt. of Soil & Water Engineering, Punjab Agricultural University, Ludhiana-141004, Punjab, India
Keywords:
Crop diversification, Groundwater, Pumping efficiency, Carbon dioxide emissionAbstract
A study was undertaken to monitor the impact of crop diversification and groundwater pumping efficiency on carbon-dioxide (CO2) emission in the three blocks of SAS Nagar/Mohali district in Punjab. The groundwater pumping for paddy crop was observed to be the main source of CO2 emission for all the blocks of SAS Nagar. The results recorded about 40% reduction in CO2 emission in Dera Bassi block with increase in the pump efficiency from 30% to 50%. Similar was the trend for other blocks (Kharar and Majri). After diversification of area under paddy crop with the other kharif crops, the CO2 emission was reduced by 21.38% in Dera Bassi. Whereas, the increasing area under paddy crop after crop diversification, as done in case of Kharar block has a negative impact on energy requirement and CO2 emission, where the total CO2 emission increased by 7.97%. Overall, diversification of area under paddy crop with a suitable kharif crop in conjunction with increased pumping efficiency from 30 to 50% may greatly help to reduce the CO2 emission resulting from groundwater irrigation.
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