Performance evaluation of buried PVC pipelines for tank irrigation: a case study of Deevanur tank

Water is vital to life and development in all parts of the world. Since rain or precipitation is the only source of water, it should be carefully harvested, stored, conserved and managed for the benefit of the largest number through optimizing the use of the available quantity. The available water should be utilized judiciously so that the future generation is saved from deterioration stress. The study was conducted in the Deevanur tank located in Tindivanam Taluk in Tamil Nadu of India. The study was carried out from the crop calendar year from 2006-07 to 2017-18. The performance of the tank irrigation system in this study was evaluated using the indicator Cropping Intensity. This study reveals that the Cropping Intensity was increased to more than 100% after rehabilitation of the tank irrigation system and is evidently observed. Before rehabilitation of the tank, the average Cropping Intensity value was 0.87 only. After rehabilitation of the tank, the average Cropping Intensity value is increased to 1.20. The indicator Cropping Intensity is good for evaluating the modernization of the tank irrigation system.