China Tibetannet A female Tibetan antelope, shy and vigilant, stands there, watching a train running along the tracks in the distance. Feeling no danger, she continues to eat grass. For three years running, she and her herd have migrated annually to the lakeside far, far away, where adult females have their young. The migration is aided by 33 channels specially reserved to allow safe passage of animals.
The picture, in itself, attests to the success of the builders of the Qinghai-Tibet Railway in environmental protection and ecological conservation on the Qinghai-Tibet Plateau.  Here, on the "roof of the world," the railway snakes all the way from Xining, capital of Qinghai Province, to Lhasa, capital of Tibet Autonomous Region.
Some 140,000 people took part intermittently in the building of the Qinghai-Tibet Railway, and countless pieces of equipment and vehicles were used in the process. The railway line and its support facilities occupy a total of 6,240 hectares of land. Moreover, 6,174 hectares of land was used temporarily for tents and other structures during the railway’s construction that took five years. Despite all that, no "scar" was found on the plateau upon completion of the railway.