| Since family planning as a basic national policy of our country since,advocated"fewer and healthier births,delayed marriage and childbearing concept is deeply rooted in the hearts of the people,is undeniable,based on Chinese total population,uneven distribution of resources,per capita less situation,actively promote family planning,in a certain extent alleviated the pressure on Chinese social,and promote the sustainable development of Chinese population and resources and environment.But planned birth policy on population structure impact should not be underestimated,just 30 years,Chinese population growth has from the previous "high birthrate,low death rate,high growth",basic transition to now "low birth rate,low death rate and low growth"population node structure low fertility,aging,etc.the problem gradually.Recently,at the Fifth Plenary Session of the party's eighteen allows implementation of the two child policy in general,provisions under the premise of adhering to the basic state policy of family planning,improve population development strategy,the full implementation of a couple gave birth to two children,and actively carry out to deal with the aging population action.In this background,this paper takes Nanchong of Sichuan Province as the research object,first of all from the city of Nanchong,the total population sex structure,age structure and data analysis,through static analysis and dynamic analysis method,statistical analysis method,the data were listed and compared.The effect of the total population of Nanchong economic development,consumer demand,the standard of living,aging social problems,the influence of the cultural quality of the population on the industrial structure and the effects of floating population urbanization,rural land problems,seek for the sustainable development of population and economy in Nanchong,and puts forward the planning optimum population,improve population quality and measures for the pension problem suggestion. |