After consulting lots of literatures and data, the summary and analysis about the natural geography environment of the coarctate areas in which the hundred aged person lived are achieved;

• 通过查阅大量文献资料,对百岁老人分布密集区域的自然地理环境进行总结、分析,探讨自然地理环境与长寿的关系,及其作用机理。