长江科学院院报 ›› 2011, Vol. 28 ›› Issue (12): 118-124.

• 流域数字模拟 • 上一篇    

三峡水库蓄水运行初期对径流过程影响分析

庞树森1, 许继军1, 徐杨2   

  1. 1.长江科学院 水资源综合利用研究所, 武汉  430010;2.三峡梯级调度通信中心,湖北 宜昌  443133
  • 收稿日期:2011-10-20 出版日期:2011-12-01 发布日期:2011-12-05
  • 作者简介:庞树森(1986-),男, 山东临沂人, 硕士研究生 ,主要从事水文预报等方面研究 ,(电子信箱)pshusen@163.com
  • 基金资助:

    水利部公益性行业专项201101004

Impact of the Impoundment of Three Gorges Reservoir on Runoff Process

PANG  Shu-Sen1, XU  Ji-Jun1, XU  Yang2   

  1. 1.Yangtze River Scientific Research Institute, Wuhan  430010, China;2.Three Gorges Cascade Dispatching and Communication Center, Yichang  443133, China
  • Received:2011-10-20 Online:2011-12-01 Published:2011-12-05

摘要: 依据三峡水库蓄水前后上下游水文站的观测资料,采用TFPW-MK方法对寸滩站、武隆站、宜昌站观测流量的长期变化趋势进行了显著性检验,并对三峡水库蓄水运行以来水库对径流过程的影响做了对比分析。结果表明三峡水库运行对径流总量无明显影响,但对径流的年内过程有一定影响:12-6月水库下泄流量大于天然径流量,而9-11月蓄水期则存在明显的减泄现象,2009年最大减泄流量12 015 m3/s。经优化调整后的三峡水库汛末蓄水方案,对此减泄过程有一定缓解,2010年最大减泄流量7 923 m3/s。

关键词: 三峡水库, 径流变化趋势, 水库汛末蓄水, 径流过程分析

Abstract: On the basis of hydrologic data at upstream and downstream stations of Three Gorges Reservoir(TGR) before and after the impoundment, significance test was performed on the trend of longterm flow variation observed at Cuntan station, Wulong station, and Yichang station by TFPW-MK method. The impact of  TGR  impoundment on runoff process was also comparatively analyzed.  Results revealed that no evident impact on the runoff process was found, while the yearly runoff process was somehow influenced. The discharge volume from December to next June was larger than natural runoff, while was reduced remarkably from September to November with a maximum decrease of 12 015 m3/s in 2009. Having been optimized by the impoundment scheme at the end of flood season, the maximum decrease of discharge volume fell to 7 923 m3/s.

Key words: Three Gorges Reservoir, runoff trends, impoundment at the end of flood season, analysis of runoff process

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