Abstract
Sundarbans in West Bengal, India, located in the eastern coast of the Bay of Bengal is one of the vulnerable islands subjected to abrupt climate change. The consequence of climate change is of particular importance because of its closeness to sea leading to sea water intrusion. Sea water intrusion not only affects the soil salinity and groundwater quality but also changes the salt dynamics of the region, hampering crop yield due to accumulation of salt in the root zone. The present study assessed the spatio-temporal changes in salinity of soil for the major land-use systems, namely rice–rice (RR), rice–fallow (RF), rice–vegetable (RV), rice–pulse (RP) and vegetable–vegetable (VV) in Basanti, one of the islands in Sundarbans delta. Spatial map was generated using ArcGIS for pictorial view of the analyzed data using Kriging interpolation technique. Top soil salinity (0–20 cm) varied from 1.55 to 3.82 dS m−1 for winter season and from 3.55 to 9.77 dS m−1 for summer season. The average increase of soil ECe for summer season was 63%, 156%, 97%, 153% and 38% over that of winter season for the above land-use systems, respectively.
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This research was supported by ICAR-NICRA (National Innovations in Climate Resilient Agriculture).
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Mullick, S., Mandal, U.K., Mallick, R. (2022). Spatio-Temporal Change in Salinity Dynamics in Different Land-Use Systems of Climatically Vulnerable Indian Sundarbans. In: Lama, T., Burman, D., Mandal, U.K., Sarangi, S.K., Sen, H. (eds) Transforming Coastal Zone for Sustainable Food and Income Security. Springer, Cham. https://doi.org/10.1007/978-3-030-95618-9_58
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DOI: https://doi.org/10.1007/978-3-030-95618-9_58
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