摘要
针对河道径流易受人类活动影响而导致水资源紧张,以变化范围法（RVA）评估枫树坝水库建成后对东江上游河川径流特性的影响。利用龙川站1952~2005年的实测径流数据,通过分析32个水文改变指标的中值及离差系数,结果表明水库建设后径流年内分布发生不同程度的变化,并根据Richter建议的分类法评估得知枫树坝水库的建设对径流的影响属于中度改变。
This study employs the Range of Variability Approach （RVA） to quantitatively assess alterations of the natural flow variability. Thirty-two hydrologic parameters, called Indicators of Hydrologic Alteration （IHA）, associated with the degree of hydrologic alteration are used to assess the hydrologic alteration of streamflow after the Fengshuba reservoir construction. Based on the daily flow data from 1952 to 2005 at Longchuan station, by analyzing median and coefficient of deviation of the thirty-two ]HA indicators, it found that the distribution and quantity of month flow have some change after the construction of the Fengshuba reservoir. The hydrologic alteration degrees of the 32 IHA indicators are integrated as the synthesized hydrologic alteration degrees. According to the classification method proposed by Richter, it is found that the runoff alteration caused by the construction of Fengshuba Reservoir is moderate degree.
出处
《水电能源科学》
北大核心
2009年第3期18-21,共4页
Water Resources and Power
基金
教育部新世纪优秀人才支持计划基金资助项目(NCET-05-0483)
教育部科学技术研究基金资助重点项目(107135)
关键词
变化范围法
水文改变指标
径流
水文综合改变度
range of vaiablity approach （RVA）
indicator of hydrologic alteration
runoff
over degree of hydrologic dlteration
