Research On Sex Ratio At Brith Change Of Liaoning Province

The data displayed that from 1980th to now, the birth rate of our nation have gone out the normal range for 30 years, from 107 to 120, and this is a unquestionable fact now, which also made our country the most serious one of this problem. Some scholars side that is the family planning policy's negative effect, others pointed out this baby gender choice was caused by Chinese traditional gender preference. More and more domestic and foreign scholars began to study the sex ratio at birth, at the same time; the problem attracted the attention of our government.As the start point of the whole population gender structure, sex gender ratio of birth baby play a very important role of the whole lifetime, its imbalance will affect every social unit organization, go through individual's whole life, the influence to the social life is multi-level and comprehensive. So, understand the nature, influence and the consequences of this problem is not only a demography problem, but also a big issue which concern about the overall situation and national's future.This paper summarized and analyzed the current available research results, find out the past problem of sex ratio at birth as well as the coming problem, summarizes the sex ratio at birth's characteristics of the foreign countries, discover the birth sex ratio disproportion's common ground according to contrast these materials, At the same time, analysis the birth sex ration problem of Liaoning province comprehensively, explains its change status and influence factors according to analysis Liaoning province's each population data, predict the future trend, exploring the methods of solving this problem.As one of the most important north cities of China, population change of Liaoning Province play a very important role in China's population structure. Clarify its trend and influence factors would help us to make clear of Chinese birth sex ratio and the same problem of other problems.