Research of population development and city security in China

With the fire-new and all-sided development of city in China, problems of the city development and population security occur inevitably. In the course of the society development, problems of the population scale, as well as the bearing capacity of the environment and economy become more and more urgent and severe, and arouse lots of society and security problems. Among those problems, the resolve of the city development and population security may be pivotal and will arouse a chain reaction. So the research of it becomes theoretically and realistically important, especially to the society harmoniousness of city in China.