人类与沙漠在进退之间的博弈,亘古至今曾反复上演。而随着时代发展,在三面环沙的宁夏回族自治区,人们逐渐与沙漠建立起了一种全新的关系——和谐。上世纪50年代,世界上第一条沙漠铁路——包兰铁路建成通车。这条中国西部的大动脉在经过宁夏中卫市境内时,需要六次穿越腾格里沙漠,近140公里的铁路线要常年经受风沙的考验。那时,这条大漠中的铁路,其沙漠沿线的天然植被覆盖率不足5%,一年中有一半以上的时间风沙漫 The game between human and desert in advance and retreat, has repeatedly staged since ancient times. With the development of the times, in the Ningxia Hui Autonomous Region surrounded by sand on three sides, people gradually set up a brand new relationship with the desert - harmony. In the 1950s, the first desert railway in the world, the Baotou-Lanzhou Railway, was opened to traffic. This artery of western China needs to cross the Tengger Desert six times during the passage of Zhongwei City in Ningxia. Nearly 140 kilometers of railway line have to withstand the test of wind and sand all the year round. At that time, the railroad in this desert covered less than 5% of its natural vegetation along the desert and over half of the year in a year