中文摘要：

中国热带以约105°E为界分为东部和西部。热带西部主要是滇南地区。按照史书记载的25个冷冬降雪年份，小冰期为1498—1896年，期间有3个寒冷阶段（1498—1550年、1694—1826年、1868—1896年）和2个相对温暖阶段。热带西部的小冰期比东部地区历时短，寒冷阶段滞后，影响范围较小。小冰期时水旱灾害频仍。小冰期的寒冷阶段与太阳黑子活动的平静期有一定的相关性。热带东、西部小冰期的差异，主要是由于东部受东亚季风影响，西部受南亚季风影响。

英文摘要：

Tropical China can be divided into east and west parts. Where the longitude of 1050 may serves as their boundary. The west part is mainly in southern Yunnan. According to the historical records which show 25 years with cold winter when snowfall occurred in the west part, it is found that the Little Ice Age began in 1498 and ended in 1896. During this period there were three cold stages, i.e. 1498-1550,1694-1826 and 1868-1896, while two relatively warm stages were intercalated between two cold ones. As compared with those in the east part, the lasting time of Little Ice Age from beginning to end in the west part was shorter, the appearance of the cold stages was laggard, and the influence scope was smaller. Disasters of floods and droughts were frequent in Little Ice Age, The cold stages of Little Ice Age are essentially consistent with the tranquil periods of sunspot activity. The difference of Little Ice Age between the east part and west part was a result of the effects of different monsoons, the East Asian Monsoon in the east part and the South Asian Monsoon in the west part of tropical China.