Few issues are more important to Beijing than food security. For centuries, ruling governments have grappled with the challenges of feeding a large, expanding population. Droughts, floods and famines feature prominently throughout Chinese history — and rebellions launched by starving peasants toppled numerous imperial dynasties.
source https://www.cnn.com/2021/11/05/economy/china-food-security-mic-intl-hnk/index.html