If I understand correctly the how part, is that to drain the fields and refill once cracks appear, that would mean more water needed. For Bali I am not sure wha

If I understand correctly the how part, is that to drain the fields and refill once cracks appear, that would mean more water needed. For Bali I am not sure what is the source of water, but for places where it is ground water, it leads to another problem.