从趋势分析和周期分析两方面分析长江上游寸滩站年最大洪峰流量演变规律。
The variation law of annual maximum peak discharge time series at Cuntan station of the upper reaches of Yangtze River has been probed, including trends and periods analysis.
模拟结果表明，土地利用结构与格局的变化，使得暴雨洪水的最大洪峰流量和洪量加大，汇流时间变短。
The modeling result shows that land use structure and pattern change results in the increase of maxi- mum flood peak and flood discharge and the decreases of runoff concentration time.
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