中国传统社会的百姓生活与人口、耕地及粮食生产密不可分。
The livelihood of the common people in Chinese traditional agricultural society is closely related to the relation between population, land and the production of grain.
小麦、稻谷和玉米的消费增长大致与人口增长持平，只是总量发生变化而已。因此，粮食需求将在2005 - 2007年生产的20亿吨基础上再增加10亿吨。
Consumption of wheat, rice and maize roughly tracks population growth but at a higher level, so demand for them will add about a billion tonnes to the 2 billion produced in 2005-07.
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