Berihu Abadi Berhe

Abstract In humid tropical regions, where paddy production is heavily reliant on monsoon rainfall and regulated streamflow, climate variability remains a major threat to agricultural sustainability. Using projections from three CMIP6 climate models under two shared socioeconomic pathways and the Soil and Water Assessment Tool (SWAT), this study examines how climate variations may affect hydrological processes and paddy yield in the Bharathapuzha River watershed in Kerala, India.

Abstract This study integrates hydrological simulation and crop yield modeling using the SWAT model to assess paddy production in the Palakkad and Alathur blocks of the Bharathapuzha River basin, South India. A majority of Indians rely on paddy as a staple food, particularly in Kerala; hence, the consequences of a warming planet on paddy productivity are causing concern. Palakkad, known as the granary of Kerala, produces about 34% of the total paddy in the state.

Abstract Water, a vital natural resource for sustaining life, has experienced a sharp rise in consumption due to increasing demand. Although many studies evaluate groundwater hydrogeochemistry and drinking suitability, its agricultural suitability remains largely underexplored. Recognizing the importance of irrigation to local agriculture, this study integrates multiple hydrochemical indices with the IWQI to comprehensively assess groundwater suitability for irrigation in the Aksum area.