长江科学院院报2018，Vol.35Issue(5)：17-22,6.DOI:10.11988/ckyyb.20161298
1980—2015年资水尾闾水文条件变化分析
Changes in Hydrological Conditions of the Tail of Zishui River During 1980-2015
马利军 1郭穗丰 2戴阳豪1
作者信息
- 1. 湖南省交通规划勘察设计院有限公司,长沙 410008
- 2. 长沙国禹水利水电设计咨询有限公司,长沙 410000
- 折叠
摘要
Abstract
According to the daily stage-discharge data during 1980-2015 collected from Taojiang and Yiyang hydro-logical stations,the trend and abrupt change of water level and flow discharge in the tail of Zishui River are ana-lyzed. On this premise,the causes and influences of aforementioned changes are explored. Results reveal that runoff in the tail of Zishui River fluctuated periodically during the past 36 years with alternating flood and dry periods;ev-er since the dry period from 2000,runoff has been decreasing overall with an insignificant trend. In the meantime, affected by riverbed downcutting and water level drawdown in Xiangshui flood channel induced by disorderly dred-ging,water level in the tail of Zishui river declined sharply, and the mean value changed abruptly by 1.72 m at Taojiang station and 0.80 m at Yiyang station. In addition,the abrupt change of water level has brought about evi-dent changes in stage-discharge relation together with the reciprocal relation between river and lake. By replenishing into river unidirectionally,lake water has alleviated the further drawdown of water level in the Zishui river.关键词
资水尾闾/水文特性/变化趋势/均值突变/河湖关系Key words
the tail of Zishui River/hydrological features/change trend/abrupt change of mean value/relation between river and lake分类
天文与地球科学引用本文复制引用
马利军,郭穗丰,戴阳豪..1980—2015年资水尾闾水文条件变化分析[J].长江科学院院报,2018,35(5):17-22,6.
