Question

Discuss about the source of irrigation for agriculture.

Answer 1

1. The northeast monsoon (oct-Dec) is a major source of water for Tamil Nadu.
2. The Northeast monsoon rains are stored in reservoirs, lakes, and tarns for cultivation.
3. Conventional water bodies like lakes, ponds, and canals provide water for agriculture in Tamil Nadu.
4. 2239 canals mn through Tamil Nadu covering a length of 9750 km.
5. There are 7985 small lakes, 33,142 large lakes, 15 lakh open wells.
6. There are 3,54,000 bore wells ln the state where agriculture is carried out with the help of these water resources.
7. The area of land that is irrigated from the lakes is very low. Nearly 3.68 lakh hectares of land obtain water from lakes.
8. The canals provide water to 6.68 lakh hectares.
9. Borewells irrigate 4.93 lakh hectares and open wells provide water to 11.91 lakh hectares of land.
10. Still in Tamil Nadu agriculture is dependent on groundwater.