Study on the Evolution Process and the Drive Mechanism of Urban Residential Space in Zhengzhou City;

Both oasis development and desertification and both human advance but desert retreat and desertadvance but human retreat existed in the evolution processes of the ecological environment in the arid areas innorthwest China during the historical periods.

From an angle of technological development, this paper analyzes the causes and evolution process of forgery, and put forwards relevant countermeasures.

This paper analyzed the ice slush formation mechanism,change process and ice flood cause of the Yellow River in Inner Mongolia.

The developing Process,Characteristics and Historical value of middle school physical education system during the Period of the Republic of China(1927-1949);

Discussions have been made on the developing process,dynamics,sand source and initiation age of the tidal sand ridges off the coast of Jiangsu province,Based on sedimentary facies analysis of 39 boreholes and simulations of tidal system developments for the last 15,000 years.