中共中央政治局委员、中国社会科学院院长李铁映 :“前车之鉴 ,后人之师。”三线建设时期 ,国家在西部地区投入上千亿元的资金 ,奠定了西部工业化的基础。但同时也带来了许多问题 ,如投资效益不高、资源浪费严重、土地沙化和水土流失加剧等。因此 ,西部开发要认真总结历史的经 Li Tieying, member of the Political Bureau of the CPC Central Committee and president of the Chinese Academy of Social Sciences, said: "In the third phase of construction, the state invested over 100 billion yuan in the western region and laid the foundation for industrialization in the west. However, it also brought many problems at the same time, such as low investment returns, serious waste of resources, aggravated land desertification and soil erosion. Therefore, the development of the western region should conscientiously sum up history