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Article
Cost Effectiveness of Rainwater Harvesting for Groundwater Recharge in Micro-Watersheds of Kolar District of India: The Case Study of Thotli Micro-Watershed
Agricultural Economics Research Review
  • N. Nagaraj, University of Agricultural Sciences, Bangalore
  • Umesh Pradhani, University of Agricultural Sciences, Bangalore
  • P. G. Chengappa, University of Agricultural Sciences, Bangalore
  • G. Basavaraj, University of Agricultural Sciences, Bangalore
  • Ramesh S. Kanwar, Iowa State University
Document Type
Article
Publication Version
Published Version
Publication Date
7-1-2011
Abstract
This study has estimated the supply augmentation of groundwater recharge due to creation of water harvesting structures and has assessed the cost-effectiveness of rainwater harvesting for groundwater recharge on watershed basis in one of the sub-watersheds of the Kolar district, Peninsular India — a typically hard-rock area. The study is based on the primary data for the year 2008-09 collected from a sample of 90 farmers having irrigation bore-wells in the selected watershed named Thotli. The study has indicated that the annual draft of irrigation water exceeds the annual recharge, causing a negative balance. On an average, the returns per rupee investment have been found to be ` 1.80 on farm pond, ` 1.78 on recharge pit and ` 1.39 on field bund. The cost incurred to impound a metre cube of water has been found as ` 3.01 in the case of field bund, where estimated recharge benefit is 5.6 m3, ` 1.67 /m3 in the case of recharge pit (with an estimated recharge benefit of 720 m3), and ` 1.33 /m3 in the case of farm pond (recharge benefit of 1350 m3). The discounted cost-benefit analysis of the investment on water harvesting structures has indicated that the investment on water harvesting structures is cost-effective and financially-viable.
Comments

This article is from Agricultural Economics Research Review 24 (2011): 217–224.

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Language
en
File Format
application/pdf
Citation Information
N. Nagaraj, Umesh Pradhani, P. G. Chengappa, G. Basavaraj, et al.. "Cost Effectiveness of Rainwater Harvesting for Groundwater Recharge in Micro-Watersheds of Kolar District of India: The Case Study of Thotli Micro-Watershed" Agricultural Economics Research Review Vol. 24 (2011) p. 217 - 223
Available at: http://works.bepress.com/rskanwar/103/