2023 Early Hearing Detection & Intervention Conference
March 5-7, 2023 • Cincinnati, OH
5/25/2021 | 2:00 PM - 3:30 PM | Synthesizing Long-term Data to Explain an Unexpected Streamwater Nitrate Pulse | Virtual Platform
Synthesizing Long-term Data to Explain an Unexpected Streamwater Nitrate Pulse
The Hubbard Brook Ecosystem Study has involved long-term observation of catchment ecosystem behavior in response to atmospheric deposition and climate changes. A major pulse of streamwater nitrate from the reference catchment occurred in 2013-14, however there was no clear perturbation to the ecosystem that might have caused the pulse. We quantitatively synthesized the suite of ecosystem data collected at Hubbard Brook to objectively identify the most likely causes for this nitrate pulse. The analysis required handling time lags in the catchment since the diversity of potential drivers are operating at different time scales. The approach identified a novel combination of warm air temperature, heavy soil frost, low forest gross primary production, and a series of large storms that we hypothesize together produced excess nitrate and transported it to the catchment outlet. This data-driven synthesis required novel data analysis techniques to objectively arrive at new hypotheses about how this forested ecosystem is responding to climate change.
- Big data
- Ecohydrology
- Nutrients
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Presenters/Authors
Mark Green
(), Case WEstern Reserve University, mbg78@case.edu;
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John Campbell
(), US Forest Service, Northern Research Station, jcampbell@fs.fed.us;
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Linda Pardo
(), US Forest Service, linda.pardo@usda.gov;
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Emma Rosi
(), Cary Institute of Ecosystem Studies, rosie@caryinstitute.org;
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Charles Driscoll
(), Syracuse University, ctdrisco@syr.edu ;
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Timothy Fahey
(), Cornell University, tjf5@cornell.edu;
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Nicholas LoRusso
(), Syracuse University, nlorusso@syr.edu;
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Jackie Matthes
(), Wellesley College, jmatthes@wellesly.edu;
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Pamela Templer
(), Boston University, ptempler@bu.edu;
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