The effect by the non-demographical factors,take account for 81% of deaths,and the demographical factors 19% in the 1970 s to 1980 s of the 20th century according to the book "Deaths and their Risk Factors among Chinese Population",compiled by Professor YANG Gong-huan.

Furthermore,the paper analyzed the trend of increasing population of Yunnan Province,based on the census date of population in past fi fty years,and explain the relationship of the population factor and the eco-environment problem in Yunnan .

The influences of population factors on nature mainly include population quantity and quality.

It is about the important traits of Chinese population factor, its influence on Marxism in China and some problems when we gradually understand and grasp the population factor in the light of historical experience and lessons.

China Component in International Income Inequality: Controlling Population Factors Approach;

From macro\|point of view,it is worthy to discuss how population factors\|such as population quantity and its change,population reproduction,population employment,population migration,and population age structure\|affect the currency demand.

95‰ micro data from tables from the 5(th) population census to study the impact of immigrant features on migration region selections,and the results show that the demographic factors and social features exert rather strong impacts on the selections of migration regions.

Study on the Realtions between the LUCC and Demographic Factors in Headstream Zone of Tarim River;

There exists much close relation between demographic factors and circular economy.

And make a exploration of the human and inhuman factors.