Question

Which factors in the Deccan states have let to the support of tank irrigation?

Answer 1

1. Uneven Topography: The hilly and undulating terrain of the Deccan Plateau makes it unsuitable for canal irrigation but ideal for tank construction by collecting rainwater in natural depressions.
2. Hard Impermeable Rocks: The presence of hard, rocky terrain prevents easy percolation of water, allowing tanks to hold water for longer periods.
3. Seasonal Rainfall: The Deccan receives rainfall primarily during the monsoon season. Tanks help store this seasonal water for use during dry months.
4. Scarcity of Perennial Rivers: The absence of major perennial rivers in much of the Deccan region makes tanks a critical alternative for providing irrigation water locally.