The results showed that the order of ecological early warning exponent of Hexi Corridor and the five cities is shown as the following: Zhangye, Wuwei, Jinchang, Hexi Corridor, Jiayuguan and Jiuquan.

• 结果发现，河西走廊及五大地市按照预警指数从大到小的顺序依次为：张掖市、武威市、金昌市、河西走廊、嘉峪关市和酒泉市。