According to the economy character of great northwest area in China, the relationship of economy development of great northwest with the transportation channel between Shaanxi and Gansu provinces is discussed.

The Comparative Study of the Shaanxi-Gansu Hui Uprising during Tongzhi Years;

Climate characteristics of spring precipitation in the eastern part of northwest China and western Inner Mongolia;

Evolution of Gan-Shaan paleochannel during Early and Middle Jurassic in Ordos basin;

The established of si-cun yuan border area government of shan-xi and gan-su province;