根据对三峡地区考古的研究成果,在分析该地史前遗址分布情况的基础上得出结论:三峡地区独特的自然地理条件及其变迁,使得当地各个时期的人类主要是沿着沿河两岸优越的环境中生存和发展,环境的变迁对生存地点的选择产生着影响.遗址数量的增加反映着自然环境的适宜,而遗址数量的减少正是洪水等自然灾害影响的结果. Based on the research results of the archeology in the Three Gorges area, based on the analysis of the distribution of the prehistoric sites in the area, the author concludes that the unique natural and geographical conditions and their changes in the Three Gorges area make the human beings in all periods of the region mainly along the banks of the rivers Survival and development in the environment and changes in the environment have an impact on the choice of place of survival. The increase in the number of sites reflects the appropriateness of the natural environment. The reduction in the number of sites is just the result of natural disasters such as floods.