The Pandaoling tunnel is the longest non-pressure diversion tunnel of the main channel from Datong river to water irrigation project at Qinwangchuan region.

Jinghe county large irrigation areas and water conservation improvement works fine line Henan Canal reform measures and the use are introduced.

Surface water mainly from precipitation and off the water, precipitation, rainfall in the main flood season, water comes mainly from the old passenger Shahe, Song eight Tuan, sand east of the trunk.