Irrigation of rice paddies with water wheels made of bamboo, Vietnam, Asia

acreages acreage agrarian agricultural agriculture asia bamboos bamboo bambuseae basic foods basic food cultivated area cultivate cultivations cultivation deserted droughts drought dryness dry empty farming fields field food gramineae grasses grass irrigate irrigations irrigation mill wheel mills mill wheels mill wheel mill nobody no one no people nutrition oryza paddy plants plant poaceae poales rice cultivation rice farming rice fields rice field rice paddy rice rinse rinsing southeast asia southeastern asia staple food true grasses true grass uninhabited vietnamese vietnam water mills water mill water wheels water wheel water