The origins and dispersal of rice cultivation

Abstract

Domesticated rice (Oryza sativa) is one of the five major crops in the world and a staple food for more than 30% of the world population. Yet the question of where, when, why and how the domestication of rice originated has been, and still is, a question under debate. However, as more archaeological and archaeobotanic discoveries have recently come to light, the question of the origin of rice cultivation now seems less elusive than it was a few decades ago. To date, both archaeological and archaeobotanic discoveries seem to indicate that rice cultivation first began in the middle Yangzi Valley by 8500–8000 years BP, and subsequently expanded to south China and Southeast Asia.