2023 Early Hearing Detection & Intervention Conference
March 5-7, 2023 • Cincinnati, OH
5/22/2018 | 10:15 AM - 10:30 AM | HOW DOES URBANIZATION AFFECT AQUATIC-TERRESTRIAL LINKAGES IN INTERMITTENT STREAMS? | 310 B
HOW DOES URBANIZATION AFFECT AQUATIC-TERRESTRIAL LINKAGES IN INTERMITTENT STREAMS?
Intermittent streams have highly dynamic aquatic-terrestrial linkages but little is known about how urbanization affects those linkages and their corresponding ecosystem services. Urban intermittent streams provide a unique opportunity to study aquatic-terrestrial linkages due to the availability of public datasets and the visibility of ecosystem services provided. We will develop a conceptual model for how urbanization may affect aquatic-terrestrial linkages within intermittent streams. As a case study, we will then focus on karstic intermittent streams in one of the United States’ largest and fastest growing urban centers, San Antonio, TX, where 94% of stream kilometers are intermittent. We will focus on quantifying several aspects of ecosystem linkages: 1) temporal and spatial variability in the amount of channel that is wet vs. dry, 2) flow magnitude, frequency, and duration, and 3) fluxes of organic matter, including algae production and desiccation. We hypothesize that urbanization will alter channel morphology and connectivity, which may increase water and organic matter storage and increase algal carbon export from aquatic to terrestrial systems. Quantifying alterations in these linkages will improve understanding of urbanization impacts on water quality and groundwater recharge dynamics in intermittent streams.
- Aquatic-terrestrial Linkage
- Urban
- Organic Matter
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Presenters/Authors
Jennifer Courtwright
(), BLM/Utah State University National Aquatic Monitoring Center, jennifer.courtwright@usu.edu;
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Brian Laub
(), The University of Texas at San Antonio, laubbriang@gmail.com;
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