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首页> 外文会议>AWRA's 2000 Summer Specialty Conference on Riparian Ecology and Management in Multi-Land USE Watersheds Aug 28-31, 2000 Portland, Oregon >STORMFLOW EFFECTS ON CHANNEL MICROTOPOGRAPHY AND WOODY DEBRIS IN A NEW ENGLAND STREAM
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STORMFLOW EFFECTS ON CHANNEL MICROTOPOGRAPHY AND WOODY DEBRIS IN A NEW ENGLAND STREAM

机译：风暴对新英格兰流道的X线断层摄影和木屑的影响

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摘要

High flow events affect substrates and large woody debris, influencing channel stability in low-order streams. To quantify these associations, we used a Total Station and radial topography surveying methods commonly used for design and construction to produce a high-resolution map of a 180-m reach of Atherton Brook on the Quabbin Reservation, in central Massachusetts, USA. The stream bed and bank topography and substrate type and size were mapped on a 0.5-m grid. Integer codes were used to differentiate substrate classes and other physical characteristics during mapping and for subsequent geographic information system (GIS) analyses. After completing our initial survey in mid-August 1999, a stormflow event substantially altered the stream reach―breaching debris dams, redistributing large woody debris (LWD), and producing extensive areas of scour and deposition. A 60-m reach was resurveyed to quantify changes in channel topography. Peak discharge during the stormflow event was estimated to be 7.5 m~3/s with a recurrence interval of 2-10 years. This information will help to quantify the interrelationship between stormflow events, channel stability, LWD movement, and brook trout habitat characteristics.
机译：高流量事件会影响基质和大量木屑，影响低阶流中的通道稳定性。为了量化这些关联，我们使用了全站仪和放射状地形勘测方法，这些方法通常用于设计和施工，以绘制美国马萨诸塞州中部Quabbin保留地上Atherton Brook 180 m的高分辨率地图。将流化床和堤岸的形貌以及基材的类型和尺寸绘制在0.5米的网格上。在制图过程中以及随后的地理信息系统（GIS）分析中，使用整数代码来区分基质类别和其他物理特征。在1999年8月中完成我们的初步调查后，一场暴风雨事件大大改变了河段的延伸范围-破坏了碎屑坝，重新分配了大块木屑（LWD），并产生了大范围的冲刷和沉积区域。重新调查了60米的距离，以量化通道地形的变化。暴风雨事件期间的峰值流量估计为7.5 m〜3 / s，重复间隔为2-10年。这些信息将有助于量化暴雨事件，河道稳定性，随钻测井运动和河鳟栖息地特征之间的相互关系。

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