Abstract
Droughts are a common occurrence in semi-arid areas and their frequency and intensity is expected to increase further with increasing variability in rainfall distribution. Based on a study of 120 farmers from 4 districts in Karnataka and Tamil Nadu, this paper identified the range of measures farmers adopt in response to droughts. Despite significant negative externalities, farmers assign higher priority to drilling new wells rather than investing in water conservation structures or demand management strategies. Among the different strategies followed, adoption of drip irrigation and purchase of tanker water for providing life-saving irrigation to perennial crops yield the highest financial return. Expansion of micro irrigation and reuse of municipal waste water are suggested as drought mitigation strategies.
Highlights
Drought has been a common phenomenon and its Such an exercise can help the planning process for tackling occurrence is not a shocking one
± 19% deviation May-August 2017 in two districts (Coimbatore and Tirupur) from the long-term mean is considered as normal whereas of Tamil Nadu and two districts (Tumkur and Bijapur) of deficiency in the range of 20-59% is considered as moderate Karnataka
The results show that the most cost effective system ranged from Rs.22,000 to Rs.40,000 per acre measures were recharging bore wells and investing in depending on the crop and inter-crop spacing. 65% of the percolation ponds
Summary
Drought has been a common phenomenon and its Such an exercise can help the planning process for tackling occurrence is not a shocking one. Our study relied on field survey conducted during occurring at intervals. Drought and more than 60% is severe drought The Central and State collecting water in bucket with timer and the same was governments have implemented several measures like calculated for one hour which again multiplied by number construction of larger reservoirs, water harvesting of hours water was pumped in a day. Some of the details structures, designing institutional arrangements for drought available from recent studies in selected locations in monitoring (like Indian Meteorological Department), early Karnataka were utilized Harness water through further spread of irrigation, 3. Rainfall analysis by Gamma distribution groundwater and watershed development; and [2] evolve and spread drought resistant and short duration high
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