Articles | Volume 14, issue 5
https://doi.org/10.5194/esd-14-915-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/esd-14-915-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
08 Sep 2023
Research article |
| 08 Sep 2023
| 08 Sep 2023
Carbon fluxes in spring wheat agroecosystem in India
Kangari Narender Reddy
CORRESPONDING AUTHOR
Center for Atmospheric Sciences, Indian Institute of Technology
Delhi, New Delhi, 110016, India
Shilpa Gahlot
Center for Atmospheric Sciences, Indian Institute of Technology
Delhi, New Delhi, 110016, India
Somnath Baidya Roy
Center for Atmospheric Sciences, Indian Institute of Technology
Delhi, New Delhi, 110016, India
Gudimetla Venkateswara Varma
Center for Atmospheric Sciences, Indian Institute of Technology
Delhi, New Delhi, 110016, India
Vinay Kumar Sehgal
Division of Agricultural Physics, ICAR-Indian Agricultural Research
Institute, New Delhi, 380015, India
Gayatri Vangala
Center for Atmospheric Sciences, Indian Institute of Technology
Delhi, New Delhi, 110016, India
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Spring wheat, a staple for millions of people in India and the world, is vulnerable to changing environmental and management factors. Using a new spring wheat model, we find that over the 1980–2016 period elevated CO2 levels, irrigation, and nitrogen fertilizers led to an increase of 30 %, 12 %, and 15 % in countrywide production, respectively. In contrast, rising temperatures have reduced production by 18 %. These effects vary across the country, thereby affecting production at regional scales.
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Short summary
Carbon fluxes from agroecosystems change the carbon cycle and the amount of CO2 in the air. Using the Integrated Science Assessment Model (ISAM), we looked at the carbon cycle in areas where spring wheat is grown. The results showed that fluxes vary a lot between regions, mostly because planting times are different. According to our investigation into which variables have the greatest impact on the carbon cycle, nitrogen fertilizers added to crops have the greatest impact on carbon uptake.
Carbon fluxes from agroecosystems change the carbon cycle and the amount of CO2 in the air....
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