K V Subba Rao

This report by ICRISAT deals with a survey of thirty-two tanks and farm data from Andhra Pradesh and Maharashtra states to assess the economic performance of irrigation tanks in semi arid tropics of India. It uses district-wise data on climatic and institutional variables to analyze the factors affecting tank-irrigation density. Results indicate that the spatial distribution of irrigation tanks is determined primarily by physical factors—hard rock substratum, post-monsoon rains, low moisture-holding capacity of soils and by population density.