Enthusiasm for using beaver dam analogues (BDAs) to restore incised channels and riparian corridors has been increasing. BDAs are expected to create a similar channel response to natural beaver dams by causing channel bed aggradation and overbank flow, which subsequently raise water tables and support vegetation growth. However, lack of funding for monitoring projects post‐restoration has limited research on whether BDAs actually cause expected channel change in the Front Range and elsewhere. Geomorphic and hydrologic response to BDAs was monitored in two watersheds 1 year post‐restoration. BDAs were studied at Fish Creek, a steep mountainous catchment, and Campbell Creek, a lower gradient piedmont catchment from May to October 2018. At each restoration site, the upstream‐ and downstream‐most BDAs were chosen for intensive study in comparison with unrestored reference reaches. Monitoring focused on quantifying sediment volumes in BDA ponds and recording changes to stream stage and riparian groundwater. Despite differences in physical basin characteristics, BDA pools at both sites stored similar volumes of sediment and stored more sediment than reference pools. Sediment storage is positively correlated to BDA height and pool surface area. However, BDAs did not have a significant influence on shallow groundwater. The lack of groundwater response proximal to BDAs could indicate that local watershed factors have a stronger influence on groundwater response than restoration design 1 year post‐restoration. Systematic, long‐term studies of channel and floodplain response to BDAs are needed to better understand how BDAs will influence geomorphology and hydrology.

中文翻译：

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美国科罗拉多前沿山脉的沉积物储存和浅层地下水对海狸坝类似物的响应

使用海狸坝类似物 (BDAs) 来修复切割的渠道和河岸走廊的热情一直在增加。预计 BDA 将通过导致河床加成和河岸流，从而提高地下水位并支持植被生长，从而产生与天然海狸坝类似的河道响应。然而，由于缺乏恢复后监测项目的资金，对 BDA 是否真正导致前沿范围和其他地方的预期渠道变化的研究有限。在恢复后 1 年监测了两个流域对 BDAs 的地貌和水文响应。2018 年 5 月至 10 月，在陡峭的山区集水区 Fish Creek 和坡度较低的山前集水区 Campbell Creek 研究了 BDA。在每个恢复地点，与未恢复的参考河段相比，选择了最上游和最下游的 BDA 进行深入研究。监测重点是量化 BDA 池塘中的沉积物量并记录河流阶段和河岸地下水的变化。尽管物理流域特征存在差异，但两个站点的 BDA 池存储的沉积物量相似，并且比参考池存储的沉积物更多。沉积物储存量与 BDA 高度和水池表面积呈正相关。然而，BDAs 对浅层地下水没有显着影响。缺乏接近 BDAs 的地下水响应可能表明当地流域因素对地下水响应的影响比恢复后 1 年的恢复设计更大。系统的，