CONSIDERATION ON GEOENVIRONMENT AND GEOHAZARD CONTROL AND HUMAN ACTIVITIES

In the long term practice of geosaences, from the stage of focusing on single technology to focusing on both technology and economics, now human-beings is entering into a new stage: the sustainable development of technology,economics, and environment. Meanwhile, there is a complete revolution: the theory has developed from "human-centered"into"human-earth synergetic". Besides, the method of research has developed into the systematical, non-linear,and informative level. Just as the famous geologist-Mr. Huang binwei pointed out, "geosciences is the base of sustainable development strategy, the,of which is to harmonize the relationship between human-beings and the nature".According to the inherent property of geohazard, the article begins with the analysis of geo-environmental evolution and developing process, and then explores not only the geo-environmeiztal conditions but also the human engineering activities(i. e. the environmental geological problem)in the"human-earth-society-economics"system. The aim is to builda new correct guiding ideology on geohazard(including its prevention and control),gradually to harmonize the inner dilemma in the"human-earth-society-economics"system and to promote the sustainable development of the population, the society~and the environment in China.