上世纪五六十年代,中国城市人口积压,单一经济体制所暴露出来的问题日益突出,劳动就业的出路越来越窄。1950年代国家开始鼓励部分城镇知识青年支援农村和边疆建设,缓解城市就业压力。此后,知识青年上山下乡逐渐成为调节城乡劳动力的重要一环。同时,许多城市有志青年也渴望到农 In the 1950s and 1960s, the backlog of China’s urban population and the problems exposed by the single economic system have become increasingly prominent, and the employment and employment opportunities have become narrower and narrower. In the 1950s, the state began to encourage some young urbanites to support the development of rural areas and frontier areas and alleviate pressure on urban employment. Since then, the knowledge of young people going to the mountains to become an important part of adjusting the urban and rural labor force. At the same time, many aspiring youth in cities are eager to get to farming