Analysis of driving forces of urban land expansion in the cities with population over 106 in China

The three characteristics of urban land expansion: firstly, city quantity and urban land gross are continually increasing, the risingspeed of urban land and urbanization developing speed are out of line;secondly, average urban land per capita is fluctuant, average urbanland per city is keeping on increasing instead; thirdly, gardens and greenbelt area and provided with extend equipped roadway area actually.In what follows, driving forces of urban land expansion in the cities with population over 1 000 000 since 1990 in China are analyzed whichare population growth, economic development, environment improvement and society action, etc. By stepwise regression approaches, thisarticle makes a conclusion that the population growth and the provided with extend equipped roadway areas growth actually at the end of theyear are the primary driving forces. Finally, in order to utilize urban land reasonably, correlative policies should be adopted positively byconcerned departments to control the speed of urban land expansion reasonably.