New Rice Feeds a Growing China
Investigate how champa rice from Vietnam enabled two harvests per year and drove Tang and Song dynasty population growth in Grade 7 Chinese history.
Key Concepts
During the Tang and Song dynasties, Chinese farming shifted to the warmer, wetter south. Farmers there began cultivating a new, fast growing grain from Vietnam called champa rice . This special rice allowed them to harvest two crops a year instead of just one.
Along with better irrigation and new tools, this agricultural revolution created a massive food surplus. With plenty of food, China’s population grew to over 100 million people. This boom supported the growth of large cities and a thriving economy.
Common Questions
What was champa rice and how did it change Chinese agriculture?
Champa rice was a fast-growing variety imported from Vietnam that allowed Chinese farmers to harvest two crops per year instead of one. This doubled food output and, combined with better irrigation techniques, produced enormous surpluses that fed a rapidly expanding population.
How did agricultural surplus affect Tang and Song dynasty society?
The food surplus created by champa rice and improved farming freed more people from agriculture to engage in trade, crafts, and urban life. This drove rapid urbanization and economic growth, making Tang and Song China among the most prosperous and populous civilizations of their era.
Why did Tang dynasty farming shift to southern China?
The south offered a warmer, wetter climate ideal for intensive rice cultivation, with longer growing seasons and greater rainfall than the north. As champa rice and new irrigation methods unlocked the south's agricultural potential, it became the empire's primary food-producing region.