Ecology is research organisms and its surrounding environment reciprocity Any organisms are not isolated: same between individuals have mutual competition， The plant， animal， microbial also exist between XiangShengXiangKe complex To meet the needs of their human environment， environmental improvement， and in turn affect Therefore， the research scope of modern ecology in individual organisms， population and biological communities， human society has been expanded to include various types of compound ecosystem Facing the human population and Environmental problems are and research contents of
2005 human development report parative analysis of life quality index of China's population population modernization and giving priorty to the development of education quantitative study on the contribution of increased population quality to economic growth proposed formation and assessment of "comprehensive index of population quality" China sustainable development strategy report study on the index/indicator system of population modernization assessment fuzzy mathematics and its economic analysis science press china standards publishing house China statistics press hina statistical yearbook 2007 hina labor force statistical yearbook 2007
