在七十年代,世界粮食经济经历了一次根本性的变动。七十年代初,不仅粮食有大量库存,生产能力过剩,而且这种情况似乎在相当长一段时期内会继续存在。到了一九七二年和一九七三年,这种情况突然消失了,全世界都在为争取获得丰收而努力。到七十年代中期,世界粮食的紧张情况比第二次世界大战刚结束后那些困难的年代中任何一年都更为严重。 In the seventies, the world food economy underwent a radical change. In the early 1970s, not only was there a large stockpile of food and excess production capacity, but this situation seemed likely to persist for a long period of time. By 1972 and 1973, the situation suddenly disappeared and the whole world was striving for a good harvest. By the mid-1970s, world food tensions were more serious than any of those difficult years after the Second World War.