TY - JOUR
T1 - Impact of climate change on future productivity and water use efficiency of wheat in eastern India
AU - Mukherjee, Asis
AU - Huda, Abul Kalam Samsul
AU - Saha, Salil
PY - 2023
Y1 - 2023
N2 - High temperature and elevated CO2 under future climate change will influence the agricultural productivity worldwide. Burgeoning population along with climate change situation is going to threaten the food security of India. According to IPCC 5th Assessment Report, global mean surface temperature and concentration of carbon dioxide (CO2) at the end of twenty-first century will increase by 4.8 °C and 539 ppm respectively under representative concentration pathway (RCP) 8.5 scenario. Considering the burning issue, the present study aims to find out the probable change in different climatic parameters under high greenhouse gas emission (RCP 8.5) scenario during 2021–2095 and their impact on wheat yield and water productivity over six locations (Jalpaiguri, Nadia, Murshidabad, Malda, Birbhum, and South 24 Parganas) covering five major agro-climatic zones of West Bengal, a state of eastern India. Results showed that maximum temperature (Tmax) and minimum temperature (Tmin) will increase by 5.3 °C and 5.9 °C during the end of this century. The increase in annual rainfall will be maximum (22%) at Murshidabad. Wheat yield will increase by 3 to 28% across the study sites. The seasonal crop evapotranspiration value will decline by 1 to 21%. Both water use efficiency (WUE) and transpiration use efficiency (TUE) will increase at all the study sites.
AB - High temperature and elevated CO2 under future climate change will influence the agricultural productivity worldwide. Burgeoning population along with climate change situation is going to threaten the food security of India. According to IPCC 5th Assessment Report, global mean surface temperature and concentration of carbon dioxide (CO2) at the end of twenty-first century will increase by 4.8 °C and 539 ppm respectively under representative concentration pathway (RCP) 8.5 scenario. Considering the burning issue, the present study aims to find out the probable change in different climatic parameters under high greenhouse gas emission (RCP 8.5) scenario during 2021–2095 and their impact on wheat yield and water productivity over six locations (Jalpaiguri, Nadia, Murshidabad, Malda, Birbhum, and South 24 Parganas) covering five major agro-climatic zones of West Bengal, a state of eastern India. Results showed that maximum temperature (Tmax) and minimum temperature (Tmin) will increase by 5.3 °C and 5.9 °C during the end of this century. The increase in annual rainfall will be maximum (22%) at Murshidabad. Wheat yield will increase by 3 to 28% across the study sites. The seasonal crop evapotranspiration value will decline by 1 to 21%. Both water use efficiency (WUE) and transpiration use efficiency (TUE) will increase at all the study sites.
UR - https://hdl.handle.net/1959.7/uws:69525
UR - https://link.springer.com/article/10.1007/s00704-023-04409-0
U2 - 10.1007/s00704-023-04409-0
DO - 10.1007/s00704-023-04409-0
M3 - Article
SN - 0177-798X
VL - 152
SP - 421
EP - 434
JO - Theoretical and Applied Climatology
JF - Theoretical and Applied Climatology
IS - 45323
ER -