Changes in population and consumption levels lead to continuing grain demand. Furthermore, various factors restrict the increase of grain supply. Therefore, the situation of grain demand and supply is not so optimistic. The above analysis tells us that the grain demand and supply is around 591 million tons and 552 million tons, respectively, in 2010. Obviously, there are approximately 41 million tons of grain demand to make up. By 2030, the grain demand will be about 692 million tons while the grain supply is about 651 million tons, which means the same amount of food demand to make up (Table 2.7).
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