【摘 要】
：
Reconstruction of river runoff has been an important component of paleoclimatology and paleo-hydrology.The Yellow River is a major surface drainage systems in North China.In this paper,4 points of the
【机 构】
：
Center for Historical Environment and Socio-Economic Development in Northwest China of Shaanxi Norma
【出 处】
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The 6th International Symposium on Larger Asian River(第六届亚洲大
论文部分内容阅读
Reconstruction of river runoff has been an important component of paleoclimatology and paleo-hydrology.The Yellow River is a major surface drainage systems in North China.In this paper,4 points of the annual runoffs over upper-middle reaches of the Yellow River have been reconstructed from 1736 to 2004.Based on the water level records (水位志桩) and Yu-Fen-Cun(雨分寸) records in the Qing Dynasty documents and modern hydrological records.We reconstructed the annual flood-season runoffs series,with the average of 5121.1 m3/s (Yellow River),respectively.In this article,the extreme flood/dry years are reconstructed based on a new method.Based on the two runoff series,we find that the synchronization of the Yellow River and Yongding River existed in a specific period,and during 1840-1860s and 1890-1910s,the synchronization disappeared,and the inverse correlation was very obvious.
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