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中文摘要：
本文以晋西昕水河为研究对象．综合利用累积距平分析、Kendall秩次相关检验法、有序聚类法等分析方法对其径流和径流系数的变化特征进行了分析研究，初步估算了人类活动对径流的影响。结果表明：流域径流年内分配不均，年际变化大，并存在一个5-6年左右的变化周期；20世纪60年代中期，随着水土保持措施的实施，流域下垫面在人类活动影响下发生显著变化，流域径流变异显著；年径流量下降趋势显著，相对于降水量变化，人类活动是径流量减少的主要原因。
英文摘要：
Statistical approaches, such as the methods of accumulative anomaly analysis, Kendall＇ s rank verification and ordered clustering, were used in this paper to analyze the change characteristics of runoffand runoffcoefficient of the Xinshui River. This paper also estimated the influence of human activities on the runoff. The results show that the intra-annual distribution of runoffis uneven, and the runoffvaried from year to year with a change periodicity of 5-6 years. In the middle of 1960s, with the strategies of water and soil conservation put into effect, the underlying surface had a great change under the influence of human activities, the runoff varied obviously, and annual runoff reduced obviously. Comparing with the variation of precipitation, human activity was the main factor of leading to reduction of annual runoff.
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