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中文摘要：
人类活动加剧了水文系统的变异。本文提出一种概率统计方法,来度量水文时间序列发生变异的程度。基于相关积分的概念,定义水文时间序列的变异标度指标--变异度和变异率。以北江流域径流量序列为例,证明该方法的有效性,并对北江流域径流序列的变异程度做了初步评价。
英文摘要：
Human activates aggravated the variation of hydrological system. This paper put forward a probability statistics method for measuring the hydrological variation, and two indices based on the concept of correlation integral were defined to measure this variation, i.e. variation degree and variation ratio. The method was proved effected in analyzing the runoff series of the Beijiang River Basin and the writer made some preliminary conclusions from this analysis.
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