Stream restoration and sewers impact sources and fluxes of water, carbon,and nutrients in urban watersheds
Stream restoration and sewers impact sources and fluxes of water, carbon,and nutrients in urban watersheds
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河流恢复和下水道影响城市流域的水、碳和养分的来源和通量
DOI：
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
C. Cooper
中科院分区：
文献类型：
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作者：
M. Pennino;S. Kaushal;P. Mayer;R. Utz;C. Cooper
摘要。更好地了解与城市基础设施和河流恢复相关的水、碳和养分通量的来源和时间，对于指导全球有效的流域管理至关重要。我们研究了水、碳(C)、氮(N)和磷(P)的来源、通量和流动路径如何随着城市河流修复和下水道基础设施的差异而变化。在3年的时间里，我们将一条城市修复的河流与两条城市退化的河流进行了比较，这两条河流排水水平不同，另一条河流采用了高地雨水管理系统。研究发现，河流恢复后，洪峰流量对降水事件的响应显著降低。同样，我们发现恢复后的溪流显示出明显较低的(p
Abstract. An improved understanding of sources and timing of water, carbon, and nutrient fluxes associated with urban infrastructure and stream restoration is critical for guiding effective watershed management globally. We investigated how sources, fluxes, and flowpaths of water, carbon (C), nitrogen (N), and phosphorus (P) shift in response to differences in urban stream restoration and sewer infrastructure. We compared an urban restored stream with two urban degraded streams draining varying levels of urban development and one stream with upland stormwater management systems over a 3-year period. We found that there was significantly decreased peak discharge in response to precipitation events following stream restoration. Similarly, we found that the restored stream showed significantly lower (p