Most of the work preparing rice paddies for planting is done by hand, as is the harvesting. This worker is forming a dam to retain water. Watering is done in sections by flooding the areas one at atime until the water supply is depleted. Water is not in short supply here in Thailand during the rainy season. The northern part of Thailand is mountainous and it seems to be raining in the mountains all the time. The clouds roll in and out all day and dump rain at a fairly heavy rate.