Mountain stream adjustments to changes in flow and sediment supply regimes

山区的物质运动经常将泥沙直接输送到水系，造成耦合条件，在相对较大的输送事件中可以触发河道的即时响应。值得注意的是，交付事件可以重置本地通道概况，并管理交付点下游的通道床体系结构的构建和维护。沉积物输送事件后的当地响应率和轨迹是主要流域水流状况、事件强度、河道宽度梯度以及在某些情况下水生物种（如鲑鱼）活动浓度的函数。低地河流系统一直是大量研究的重点，而在山间溪流中开展的工作要少得多，关于山间河道对水流或泥沙供应制度变化的反应的研究也很少。

Mass movements in mountainous regions often deliver sediment directly to the stream network, resulting in coupled conditions that can trigger immediate channel responses during relatively large delivery events. Notably, delivery events can reset the local channel profile and govern construction and maintenance of channel-bed architecture downstream of delivery points. The local response rate and trajectory following a sediment delivery event is a function of the prevailing watershed flow regime, the event magnitude, gradients in channel width, and in some instances the activity concentration of aquatic species such as salmon. Whereas lowland river systems have been the focus of a substantial body of research, much less work has been carried out within mountain streams and little concerning mountain channel responses to changes in flow or sediment supply regimes.