我国西部地区是指陕西、甘肃、青海、宁夏、新疆、云南、贵州、内蒙古、广西、西藏、四川和重庆等１２个省、自治区、直辖市 ,西部大开发战略提出后 ,多数资料介绍西部大开发中西部的范围是指除内蒙古、广西外的以上１０个省、市、自治区。面积５４５万平方公里 ,占全国陆地面 The western part of our country means that after the strategy for the great development of 12 provinces, autonomous regions and municipalities directly under the Central Government in Shaanxi, Gansu, Qinghai, Ningxia, Xinjiang, Yunnan, Guizhou, Inner Mongolia, Guangxi, Tibet, Sichuan and Chongqing was proposed, most of the information on the development of the western region The scope of the Midwest refers to the above 10 provinces, municipalities and autonomous regions except Inner Mongolia and Guangxi. An area of ​​5450000 square kilometers, accounting for the national land surface