Statistical analysis on Major Natural diasaters in China in the 20th cnetury

摘要

This paper deals with major natural disasters occurred in China in the 20~th century. From this paper, the following conclusions can be obtained: direct 1 The most frequent natural disasters in China are flood, hurricane and earthquake; but the natural disasters occurred most frequently in China, while 1900-1919 and 1990s are periods when natural disasters occurred least frequently. direct 3 In the 20~th century, 1920s are periods when most chinese died from natural disasters; while 1980-1999 is a period when least Chinese died from natural disasters.