An Analytical Study for Assessing Water Productivity in Pre‐ and Post‐Rehabilitation Period of Rural Tank System

Abstract

Water productivity is the ratio of the amount of water applied to the field in cubic meter and the net return gained in rupees. Increased water productivity leads to an improved occupational value for the farmers. Tank rehabilitation allows for additional water to be added to an irrigation tank, increasing water production. Hence, this study is carried out to assess the net return for a unit of water used in the pre- and post-rehabilitated period of rural tank “Pelasur” in Thiruvannamalai district of Tamil Nadu. The findings reveal that during the post-tank restoration period, a higher percentage of tail reach and marginal farmers benefited. Farmers who irrigate solely with tank water have higher water production since their income per m3 is higher. The significant impact of tank repair was demonstrated using the Statistical Package for Social Science (SPSS-21.0).

Cost-Benefit Analysis of Minor Irrigation Tank Rehabilitation Using Run-Off and Storage Capacity: A Case Study from Ambuliyar Sub-Basin, Tamil Nadu, India

“…They found that rehabilitation resulted in higher annual incomes, with a benefit-cost ratio exceeding 1.5. Anuradha et al [44] found that rehabilitating the Pelasur tank in Thiruvannamalai district, Tamil Nadu, significantly improved water productivity. Deivalatha et al (2014) [45] found that desilting tank beds and supply channels in Ponpadi, Tamil Nadu, increased crop productivity from 4800 to 5400 in the first season and 4425 to 5400 in the second.…”

Geospatial Technology for Sustainable Agricultural Water Management in India—A Systematic Review

“…Food security requires a consistent supply of water, especially in areas with high population density. This can be achieved by capturing rainwater to combine surface and groundwater [24,25]. Rainwater harvesting not only stabilizes agricultural output but also enhances productivity and aids in restoring degraded lands.…”