2023 Early Hearing Detection & Intervention Conference
March 5-7, 2023 • Cincinnati, OH
5/24/2018 | 11:30 AM - 11:45 AM | HOW DO WE MEASURE BIOGEOCHEMICAL HOT SPOTS AND MOMENTS? MOVING TOWARD A UNIFYING EMPIRICAL FRAMEWORK | 310 A
HOW DO WE MEASURE BIOGEOCHEMICAL HOT SPOTS AND MOMENTS? MOVING TOWARD A UNIFYING EMPIRICAL FRAMEWORK
We have long recognized that rare locations and events can contribute disproportionately to biogeochemical cycling of nutrients (i.e. hot spots and hot moments concept, HSHM). However, our inability to accurately identify, predict, and incorporate HSHM into global models has limited the concept’s utility. This is due, in part, to a lack of comparison among diverse empirical methods used to identify and quantify biogeochemical HSHM. Using data from a high-frequency soil-monitoring network in a restored wetland (SW Ohio), we compared existing methods (e.g. comparison of means, proportions, outliers, Lorenz curve, and Gini coefficient) to quantify HSHM. By using a single dataset, of methane and nitrous oxide emissions from the aquatic-terrestrial interface, with one experimental design, our work highlights the advantages and disadvantages of differing empirical methods. We aim to recommend more consistent criteria for quantifying HSHM, with the hopes that unifying the empirical framework underlying the concept will increase the testability, reproducibility, and thus utility of the HSHM concept.
- Biogeochemistry
- Climate Change
- Aquatic-terrestrial Linkage
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Presenters/Authors
Laura Podzikowski
(), University of Kansas, lpodziko@ku.edu;
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Terrance D. Loecke
(), University of Kansas, loeckete@gmail.com;
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Amy J. Burgin
(), University of Kansas, burginam@ku.edu;
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