Skip to main content Skip to navigation

Jill S. Baron

Posted by | February 28, 2021


Jill S Baron

Job Title:

Senior Scientist


Phone Number:



Google Scholar Profile


Dr. Jill S. Baron is a senior scientist with the U.S. Geological Survey, and a Senior Research Ecologist with the Natural Resource Ecology Laboratory at Colorado State University. Her interests include applying ecosystem concepts to management of human-dominated regions, and understanding the biogeochemical and ecological effects of climate change and atmospheric nitrogen deposition to mountain ecosystems. She is founder and Co-Director of the John Wesley Powell Center for Earth System Science Analysis and Synthesis. Baron was President of the Ecological Society of America in 2014 and is a Fellow of the ESA and AAAS. She was named a Woman of Vision in 2015 by Colorado Women of Influence for her work advancing women’s role in science. She is founder and Principal Investigator of the Loch Vale Watershed long-term monitoring and research program in Rocky Mountain National Park, an instrumented catchment with 34 years of continuous records. As Director of the North American Nitrogen Center, part of the International Nitrogen Initiative, she works at regional to global scales to maximize benefits while reducing pollution from reactive nitrogen. Dr. Baron received her Ph.D. from Colorado State University in 1991, and has undergraduate and master’s degrees from Cornell University and the University of Wisconsin.

Research Areas:

  • Ecosystem ecology
  • Biogeochemistry

Current N-related Projects:


Castner EA, Leach AM, Leary N, Baron J, Compton JE, Galloway JN, Hastings MG, Kimiecik J, Lantz-Trissel J, de la Reguera E, Ryals R. 2017. The Nitrogen Footprint Network: A Multi-Institution Program to Reduce Nitrogen Pollution. Sustainability: The Journal of Record 10:79-88; DOI: 10.1089/sus.2017.29098.eac

Greaver TL, CM Clark, JE Compton, D Vallano, AF Talhelm, CP Weaver, LE Band, JS Baron, EA Davidson, CL Tague, JD Herrick, L Liu, JA Lynch, CL Goodale, E Felker-Quinn, KJ Novak, RA Haeuber. 2016. Key ecological responses to nitrogen are altered by climate change. Nature Climate Change 6:836-843. 10.1038/nclimate3088.

Baron, JS, EA Davidson, R Nifong. 2016. Managing Nutrients, Water, and Energy for Producing More Food with Low Pollution (MoFoLoPo); What Would Success Look Like? Environment and Development 18:52-53.

Boot CM, Hall EK, Denef K, Baron JS. 2015.Long-Term Reactive Nitrogen Loading Alters Soil Carbon and Microbial Community Properties in a Subalpine Forest Ecosystem. Soil Biol Biochem. DOI 10.1016/j.soilbio.2015.10.002

Mast, MA, Clow, DW, Baron JS, Wetherbee GA. 2014. Links between N Deposition and Nitrate Export from a High-Elevation Watershed in the Colorado Front Range. Environmental Science & Technology 48: 14258-14265.

Hartman, MD, JS Baron, HE Ewing and KT Weathers. 2014. Combined global change effects on ecosystem processes in nine U.S. topographically complex areas. Biogeochemistry 119: 85-108.

JS Baron, EK Hall, BT Nolan, JC Finlay, ES Bernhardt, JA Harrison, F. Chan, EW Boyer. 2013. The interactive effects of excess reactive nitrogen and climate change on aquatic ecosystems and water resources of the United States. Biogeochemistry 114:71-92.

Pardo, Linda H, Fenn, Mark E, Goodale, Christine L, Geiser, Linda H, Driscoll, Charles T, Allen Edith B, Baron, Jill, Bobbink, Roland, Bowman, William D, Clark, Christopher, Emmett, Bridget, Gilliam, Frank S., Greaver, Tara, Hall, Sharon J., Lilleskov, Erik A., Liu, Lingli, Lynch, Jason, Nadelhoffer, Knute, Perakis, Steven S., Robin-Abbott, Molly J., Stoddard, John, Weathers, Kathleen, Dennis, Robin L. 2011. Effects of nitrogen deposition and empirical nitrogen critical loads for ecoregions of the United States. Ecological Applications 8:3049-3082.

Baron, J.S., C.T. Driscoll, J.L. Stoddard, and E.E. Richer. 2011. Critical loads of atmospheric nitrogen deposition for nutrient enrichment and acidification of U.S. freshwaters. BioScience 61:602-613.