摘要
利用清代志桩涨水尺寸和雨分寸记录、近现代器测水文与降雨数据等多种资料，重建／修正了永定河卢沟桥断面和黄河三门峡断面1766．2004年的汛期径流量（m^3／s），其在夏秋汛期的多年平均径流量分别为109．0m。／s和5121．1m^3／s。并依据多年径流量平均值士1个标准差值得出了新的丰一枯水发生年表。小波分析显示两者具有较为明显的30～40年周期，1920年之后，永定河持续性的枯流使河流水量变化周期消失，黄河中游的高频周期则更加发育。两者在1780．1900年存在20年尺度上的变化同步性现象，而1840—1860年代和1890．1910年代两者出现了明显的反相位现象。从1766年以来的情况分析，中国东部季风区进入20世纪暖期之后，黄河中游与永定河卢沟桥以t流域的汛期降雨基本为反相关关系。
Reconstruction of river runoff has been an important component of paleo-climatolpgy and paleo-hydrology. The Yellow River and Yongding River are two major surface drainage systems in North China. In this paper, both of them were studied to reconstruct annual flood-season runoff from 1766 to 2004 at Sanmenxia station （Yellow River） and Lugouqiao station （Yongding River） using the water level records and Yu-Fen-Cun records in the Qing Dynasty documents and modem hydrological records. We reconstructed the annual flood-season runoff of Yellow River （Sanmenxia station） and Yongding River （Lugouqiao station）, with the average of 109.0 m3/s （Yongding River） and 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. The wavelet shows that there was a 30-year cycle in both of the rivers; however, after the 1920s the cycle disappeared in the Yongding River. On a 60-80a scale, the changing runoff of the Yellow River was earlier than that of the Yongding River. In MWP, the inverse correlation in the trend of the two rivers was more obvious. Warm period, PDO and sunspot number have affected the changes of river runoffs in North China.
出处
《地理学报》
EI
CSCD
北大核心
2013年第7期975-982,共8页
Acta Geographica Sinica
基金
国家重点基础研究发展计划(973)资助项目(2010CB950100)
中国科学院重点部署项目(KZZD-EW-04-01)~~
关键词
黄河
永定河
径流量
气候变化
Yellow River
Yongding River
runoff
climatic change
