干旱区研究 ›› 2018, Vol. 35 ›› Issue (2): 334-339.doi: 10.13866/j.azr.2018.02.10

• 水土资源 • 上一篇    下一篇

甘肃瓜州榆林窟历史洪水及其重现期研究

马玲, 王乃昂, 贾鹏   

  1. 兰州大学资源环境学院,甘肃 兰州 730000
  • 收稿日期:2017-06-07 修回日期:2017-07-06 出版日期:2018-03-15 发布日期:2025-11-17
  • 通讯作者: 王乃昂. E-mail: wangna@lzu.edu.cn
  • 作者简介:马玲(1992-),女,硕士,主要从事历史洪水与环境变迁研究. E-mail: maling1992@foxmail.com
  • 基金资助:
    国家自然科学基金重点项目(41530745)和美国国家地理项目(GEFC34-15)

Historical Floods and Their Recurrence Intervals in Yulin Cave, Hexi Corridor

MA Ling, WANG Nai-ang, JIA Peng   

  1. College of Resources and Environmental Sciences,Lanzhou University,Lanzhou 730000,Gansu,China
  • Received:2017-06-07 Revised:2017-07-06 Published:2018-03-15 Online:2025-11-17

摘要: 野外实地考察了河西走廊榆林窟1911年历史洪水,对洪水断面进行测量,采用积分的方法恢复其过水断面,分别用比降面积法和水位流量法重建其洪峰流量,并用历史洪水排位法推算其重现期。比降面积法重建洪峰流量结果为879 m3·s-1,水位流量法重建结果为738 m3·s-1,两种方法推求结果相差不大,取其均值809 m3·s-1作为最终流量推求结果。重现期的推算结果表明,榆林窟1911年的历时洪水重现期为105 a。研究结果延长了榆林河的洪水记录尺度,为榆林窟在全球变暖背景下的防洪减灾提供了依据。

关键词: 历史洪水, 水位流量法, 比降面积法, 洪峰流量, 重现期, 瓜州榆林窟, 甘肃

Abstract: Field observations and measurements of historical floods at Yulin Cave in the year of 1911 were conducted.The flood area was measured using a Leica TS06 Total Station,and the integration method was used to calculate flood area.The stage-discharge and slope-area methods were applied to calculate the peak discharge,and the rank method was used to calculate the recurrence intervals.Peak discharge values calculated by the stage-discharge and slope-area methods were 879 m3·s-1 and 738 m3·s-1 respectively.These two results were similar,and their difference was only 9.6%.Therefore the mean value of 809 m3·s-1 was taken as the estimated peak discharge. Furthermore,the calculations using the rank method suggested that a recurrence interval for the flood magnitude in the year of 1911 was 105 years. This work extended the flood record period for the Yulin River,and could provide a reliable basis for constructing flood control facilities at Yulin Cave in the context of global warming.

Key words: historical flood, stage-discharge method, slope-area method, peak discharge, recurrence interval, Yulin Cave, Gansu