On the basis of investigation,the artical analyses the income gaps of residents of Gansu in follows fields:between two areas,two trades,between town and country,between the different system of ownership and between the different person ect.

Nanjing is the southern area south of the Ming and Qing Dynasties -- Former Residence of Gan Xi, from the design point of the courtyard space for the research.

The authors dissected the ants main way at middle and through dam in the Lianshan reservoir of Guangxi Liucheng county, expounded a group characteristic value and important parameters reflecting the ants way features.