IMPACT OF CLIMATE CHANGE ON AGRO-CLIMATIC ZONES OF KARNATAKA: A COMPARATIVE STUDY OF DROUGHT VULNERABILITY
DOI:
https://doie.org/10.5281/b1pnhf38Keywords:
Karnataka agro-climatic zones; Climate change; Drought hazard indices; RCP 4.5; RCP 8.5 ;Semi-arid regions; Water management; Policy interventions.,,Abstract
Karnataka’s diverse agro-climatic zones (ACZs) face increasing vulnerability to climate change,
particularly in the form of droughts. This study investigates the connection between the existing
climatic conditions, agricultural practices, and the projected drought risks under various climate
scenarios (RCP 4.5 and RCP 8.5). Using data from the Karnataka Agriculture Department, this
research examines how different zones—ranging from semi-arid regions like the North Eastern
Dry Zone to per-humid coastal zones—are impacted by changing rainfall patterns and
increasing temperatures. By cross-referencing the climate characteristics, rainfall ranges, and
major crops of each zone with the district-wise Drought Hazard Indices (DHIs), this study
identifies key vulnerabilities and proposes adaptive agricultural strategies tailored to each zone.
Findings show that semi-arid regions are especially at risk, with "Very High" drought indices
under future climate projections, demanding urgent policy interventions and the adoption of
climate-resilient crops. Conversely, coastal regions, though historically less vulnerable, face
increasing risk under projected scenarios, necessitating new strategies for water management
and crop adaptation. This study concludes with recommendations for enhancing resilience
across Karnataka’s ACZs, emphasizing the need for climate-smart agricultural practices and
region-specific policy frameworks to mitigate the impact of future climate challenges.
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