Sponsor
This research was funded by National Science Foundation Awards 2015616 and 2333154 to Rebecca L. Hale and Kristina G. Hopkins, 2015661 to Jennifer L. Morse, 2015619 to Krista A. Capps, 2015632 to John S. Kominoski, and 2015624 to Allison H. Roy. A portion of Krista A. Capps's salary was supported by the Department of Energy Office of Environmental Management under Award Number DE-EM0005228 to the University of Georgia Research Foundation. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the US government. This is contribution #2039 from the Institute of Environment at Florida International University.
Published In
Limnology and Oceanography
Document Type
Article
Publication Date
1-1-2025
Subjects
Environmental Assessment and monitoring -- study of, Urban studies
Abstract
Urbanization reshapes dissolved organic matter (DOM) sources, transport, and transformations through changes in vegetation, hydrology, and management of waste and water. Yet the impacts of urbanization on DOM are variable within and among cities. Predicting heterogeneous responses to urbanization is challenged by diverse human activities and underlying biophysical variation along stream networks. Using data from the 486 largest urban areas in the continental United States and seven focal cities, we identified macro and local scale urban gradients in social, built, and biophysical factors that are expected to shape DOM. We used these gradients and the literature to develop hypotheses about heterogeneity in DOM quantity and quality within and among cities. Interactions among landscape and infrastructure attributes across spatial and temporal scales result in heterogeneous responses in DOM. Characterizing and quantifying these inconsistent responses to urbanization in contrasting settings may help to better understand heterogeneity and identify generalities among urban watersheds.
Rights
Copyright (c) 2025 The Authors
This work is licensed under a Creative Commons Attribution 4.0 International License.
Locate the Document
DOI
10.1002/lno.70201
Persistent Identifier
https://archives.pdx.edu/ds/psu/44120
Citation Details
Hale, R. L., Hopkins, K. G., Capps, K. A., Kominoski, J. S., Morse, J. L., Roy, A. H., Chen, S., Quick, A., Blinn, A. J., Ortiz Muñoz, L., & Folk, G. (2025). Urban heterogeneity drives dissolved organic matter sources, transport, and transformation from local to macro scales. Limnology and Oceanography. Portico.