2023 Early Hearing Detection & Intervention Conference
March 5-7, 2023 • Cincinnati, OH
5/21/2018 | 3:00 PM - 3:15 PM | CAUSES AND CONSEQUENCES OF URBAN HEADWATER HETEROGENEITY | 310 A
CAUSES AND CONSEQUENCES OF URBAN HEADWATER HETEROGENEITY
Like non-urban streams, streams in urban areas have heterogeneous structure and function. In addition to natural sources of variation, urban streams vary across gradients of land cover, legacies, and infrastructure. Variation exists across scales – both within and across cities and has important consequences for stream function. In this presentation, I focus on stormwater infrastructure as an important source of heterogeneity in urban headwater streams. Given the highly modified nature of urban flow paths, zero-order urban streams are often designed stormwater conveyance systems. The design of these systems can vary substantially, from highly connected storm sewers to disconnected retention basins, with important consequences for the hydrology and biogeochemistry of small urban watersheds. The underlying drivers of stormwater heterogeneity include development history both with cities and across cities, as well as climate and other biophysical factors. In addition to technological developments in infrastructure design, stormwater systems reflect shifting and expanding priorities in urban environmental management. In contrast to the paradigm of urban homogenization, urban headwaters display significant heterogeneity, which is the result of the complex social-ecological dynamics of urban ecosystems.
- Watershed
- Water Quality
- Interdisciplinary
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Presenters/Authors
Rebecca Hale
(), Idaho State University, halereb3@isu.edu;
ASHA DISCLOSURE:
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Nonfinancial -