The forest on the north slope of Qilian Mountain covers up the main ecosystem in Hexi Corridor in Gansu Province, which is also the genetic base of Northwest China and the ecological protector of the people in Hexi Area.
　　 Qilian Mountain is cosidered as the mother of Hexi Corridor, which is not exaggerated at all in consideration of the responsibility of Qilian Mountain. However, due to the excessive exploration, the mother cannot provide more any longer.
　　Hexi Corridor lies inland of China, which is maintained by melted snow on Qilian Mountain. It also plays a significant role in sustain the economy and ecobalance of Hexi Area.
Under the cultivation of the melted snow, Hexi Corridor has become one of the twelve bases of commodity grain in China. There are more than 4.86 million people living in Hexi Corridor with more than ten million mu of farmland. The annual rainfall is 60 to 100 millimeters. If there was no Qilian Mountain, there would be the desert. The annual production of grain takes up one third in that of the whole province, and the annual production of commodity grain takes up 70% of that in the whole province.
　　There are 22 protective station responsible for protecting the forests in Qilian Mountain – the forests that conserve water resources, one of which is Xiama Forest.