唐宋开封的气候和自然灾害

6至 10世纪处在中华 5 0 0 0年气候变迁过程中的第三个温暖期 ,开封的温暖气候从隋唐经五代 ,一直持续到北宋初年。公元 10 0 0年左右 ,开封气候转寒。与气候的前后变化相伴随 ,唐宋开封的水、旱、蝗、风沙等自然灾害也不断出现 ,但这些灾害并不能从根本上改变温湿的总体气候特征。

A Study on the Climate and Natural Disaster of Kaifeng during T'ang and Song Dynasty

From the 6th to 10th century,the climate of Kaifeng standed in the Third Warm Period of 5000-year progress of Chinese climate changes. About the year of 1000 A.D., the climate of Kaifeng became cold.With the change of climate,the natural disaster of flood,drought,locust,sand often took place.But these plague could not radically change the general warm and humid feature of the climate.