The Inspection Of Several Problems About The Weather Changes And The Two Han Dynasties' Social Development

It is a new academic area that the historical change of the weather was studied from the historic view to inspect the its influence on the social devevelopment.Recently,though the study results are enough ,most of which focus on the period after the two Han Dynasties due to being lack of historic materials and only inspect the historic weather situation,the study on the relation between the historic weather change and social development is relatively few. Further more, most researchers only inspect the weather change itself but ignore the great influence of the weather change on the ancient Chinese society. The study results based on the historical humanism view are scare. The writer hopes to inspect the situation of the historical weather changes of two Han Dynasties and analyze its influence on the society ,which will enrich the details of the relevant study and deepen the study and understanding of the social developing law of the two dynasties.Taking full advantage of the historical documents and analyzing the weather change of the two Dynasties elaborately, I inspect the influence of the weather change of the two dynasties on the social development and changes combined with the weather change.The paper embrace the following parts:The first part, An inspection on the situation of the two Han Dynasties.I analyze the research of the academic circle in recent decades, so two different view points were drawn out, which embrace the warmness of Xi Han's weather and the warmness of Dong Han's weatherBased on the historical matirials ,it was poited out the weather of the two han dynasties became cold and droughty step by step. I insisted on the view point of fluctuating weather in Xi Han and cold weather in Dong HanThe second part, the influence of the weather change on the social development of the two dynasties.It is believed the natural disasters in the early period were more serious than the ones in the late period just because the weather became cold and draughty little by little in the first section of the first chapter. In the second section, I believe that the development of the northwest district had a close tie with the appropriateness of the weather in Xi Han and agricultural areas shrinked to the south gradually because of the cold weather.Weather change also varied the plant structure. in the third section ,I believe the economic development of the south of the Yangtze River depended on the weather change .In the fourth section ,the rise and decline of the two dynasties depend on the weather change,Which showed the following aspects: 1,it is one of the important reasons that weather appropriateness of the early Xi Han resulted in the boom of the Wen dynasty and Jing dynasty. 2, the worse weather and the fluent natural disasters were the reasons why the economy slumped in the last years of Han Wu dynasty. 3,Wang Mang's regain collapsed partly because of the colder weather, fluent natural disasters4, the cold weather and the drought in the last years of the Dong Han was one of the reasons why the regime broke down.The third chapter,weather change and population'move.,in the first section, the worsen environment of the northern nomadic people led to the move and invasion to the south because of the same reason.They had to seek for a surviving place which was located in the ZhongYuan area.at the same time ,Qiang Race moved to the interior because of the same reason.In the second section, it is believed that two times of population'move of Han Race had some relation with the weather change.The fourth chapter is the conclusion of the paper, which summarizes the main view and examines the shortness of the whole paper ,point out the academic value and the realistic significance of the relationship between the weather study and two dynasties and highlight the the academic value and the realistic significance of the historical weather study.