The time scales of a catchment hydrologic response in a human impacted intra-Apennine basin, was assessed by a power spectral analysis. Turbidity and streamflow data, at high resolution (10 min) have been considered during four years. The turbidity and streamflow have heavy tails that follow approximately Pareto distributions. Both also display scaling Fourier power spectra of the form f^-b, over different scaling ranges: from 10 min to one day for the turbidity and from 1 h to 20 days for the streamflow data. For both locations the slope for the streamflow is close to b = 1.7, whereas for turbidity the values b = 1.68 and 2.25 are found for the upstream and downstream locations, respectively. The turbidity dataset at the downstream station has a steeper slope than the upstream station, implying a higher persistence of the turbidity fluctuations: this change of slope shows that the effect of the river channel and catchment is similar to a fractional integration from the upstream to the downstream data. Furthermore, the delay times of the turbidity dataset, and hence of suspended sediment, were calculated using a co-spectrum between the series and indicating characteristic transit times of 25 days and 145 days.

通过功率谱分析评估了受人类影响的亚平宁盆地内流域水文响应的时间尺度。四年来考虑了高分辨率（10 分钟）的浊度和流量数据。浊度和水流具有重尾，大致遵循帕累托分布。两者都还显示了 f ^-b形式的缩放傅立叶功率谱，在不同的缩放范围内：浊度从 10 分钟到一天，流数据从 1 小时到 20 天。对于这两个位置，水流的斜率接近 b = 1.7，而对于浊度，上游和下游位置的值分别为 b = 1.68 和 2.25。下游站的浊度数据集比上游站的坡度更陡，这意味着浊度波动的持续性更高：这种坡度变化表明河道和集水区的影响类似于从上游到上游的部分整合。下游数据。此外，浊度数据集的延迟时间以及悬浮沉积物的延迟时间是使用系列之间的共谱计算的，并指示 25 天和 145 天的特征传输时间。