地理科学进展

地理科学进展 ›› 2011, Vol. 30 ›› Issue (5): 550-556.doi: 10.11820/dlkxjz.2011.05.005

• 地表过程 • 上一篇    下一篇

1957-2008年黑河流域径流年内分配变化

郭巧玲1, 杨云松2, 畅祥生3, 陈志辉3   

  1. 1. 河南理工大学资源环境学院, 河南 454003;
    2. 河南理工大学经管学院, 河南 454003;
    3. 黑河流域管理局, 甘肃 730000
  • 收稿日期:2010-08-01 修回日期:2011-02-01 出版日期:2011-05-25 发布日期:2011-05-25
  • 作者简介:郭巧玲(1978-),女,副教授,硕士生导师,主要研究方向为水文水资源及相关领域。E-mail: yys7401@163.com
  • 基金资助:

    河南理工大学博士基金项目(B2010-18)。

Annual Variation of Heihe River Runoff during 1957-2008

GUO Qiaoing1, YANG Yunsong2, CHANG Xiangsheng3, CHEN Zhihui3   

  1. 1. Institute of Resource & Environment, Henan Polytechnic University, Jiaozuo 454003, Henan, China;
    2. Institute of Economics & Management, Henan Polytechnic University, Jiaozuo 454003, Henan, China;
    3. Heihe River Basin Bureau, Lanzhou 730000, China
  • Received:2010-08-01 Revised:2011-02-01 Online:2011-05-25 Published:2011-05-25

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摘要： 根据黑河流域重点控制水文站莺落峡、正义峡实测月径流量观测资料,应用不均匀系数、集中度(期)、变化幅度等方法指标,分析了黑河流域径流年内变化规律；采用累积滤波器和Mann-Kendall 秩相关法诊断了各月径流量的变化趋势。结果表明：①对于莺落峡站,总体上各个年代径流年内分配均呈明显的“单峰型”分布,其径流量7月达到极大值,对于正义峡站,总体上各个年代径流年内分配均呈明显的“双谷型”分布,其径流量基本上都是5 月和11 月达到低谷值,7 月和9 份到达峰值。②对于莺落峡站,不均匀性和集中程度20 世纪50 年代最大,2000-2008年最小,各年代最大径流量出现时间均在7 月下旬；对于正义峡站,不均匀性和集中程度90 年代和2000-2008 年较大,60 年代最小,各年代最大径流量出现时间在8 月或12 月。③1957 年以来,莺落峡站径流量除7 月呈略微减少趋势外,其余各月均呈现一定的增加趋势；正义峡站径流量除9 月呈略微增加趋势外,其余各月均呈现一定的减少趋势。

关键词: Mann-Kendall, 黑河流域, 集中度(期), 年内变化, 月径流

Abstract: Based on the observed monthly streamflow of 2 key hydrological control stations in Heihe River Basin since 1950, by using nonuniformity coefficient and concentration degree (period) ,we studied the intra-annual change. The Mann-Kendall test and the cumulative filter methods were employed to detect the trends of intra- annual runoff. The results indicate that: 1) Generally, the annual runoff distribution reached a maximum in July at Yingluoxia, and the curve of it had a single peak value. At Zhengyixia the annual runoff reached the minimum in May and November and reached the maximum in July and September, and the curve of it had two valleys; 2) the inhomogeneity and concentration degree of the runoff in the 1950s reached the maximum, while those in the 2000s hit the lowest. The maximum runoff appeared in July at Yingluoxia. At Zhengyixia the inhomogeneity and concentration degree of the runoff in the 1990s and 2000s reached the maximum, while those in the 1960s hit the lowest. The maximum runoff appeared in August and December; 3) the monthly runoff at Yingluoxia presented an increasing trend since 1957 except in July, but at Zhengyixia the monthly runoff had a descending trend except in September.

Key words: concentration degree (period), Heihe River Basin, intra-annual change, Mann-Kendall, monthly runoff