Alexander Krichels, PhD

Treesearch Publications

• Sharon Zhao, Alexander Krichels, Elizah Z. Stephens, Anthony D. Calma, Emma L. Aronson, G. Darrel Jenerette, Marko J. Spasojevic, Joshua P. Schimel, Erin J. Hanan, Peter M. Homyak. 2025. Nitrogen availability and changes in precipitation alter microbially mediated NO and N2O emissions from a Pinyon-Juniper dryland
• Alexander Krichels, Elizah Z. Stephens, Chloe Reid, M. Fabiola Pulido Barriga, Maria E. Ordonez, Jennie R. McLaren, Meg Kargul, Loralee Larios, Sydney I Glassman, Peter M. Homyak. 2025. Wildfire-induced losses of soil particulate and mineral-associated organic carbon persist for over 4 years in a chaparral ecosystem
• Alexander Krichels, Robert A. Sanford, Joanne C. Chee-Sanford, Lynn Connor, Rachel Van Allen, Angela D. Kent, Wendy H. Yang. 2025. Distinct N-cycling microbial communities contribute to microtopographic variation in soil N2O emissions from denitrification
• Jianning Ren, Erin J. Hanan, Aral Greene, Christina Tague, Alexander Krichels, William D. Burke, Joshua P. Schimel, Peter M. Homyak. 2024. Simulating the role of biogeochemical hotspots in driving nitrogen export from dryland watersheds
• Alexander Krichels, Aral C. Greene, Elizah Z. Stephens, Sharon Zhao, Joshua P. Schimel, Emma L. Aronson, Erin J. Hanan, Peter M. Homyak. 2024. Nitrifier controls on soil NO and N2O emissions in three chaparral ecosystems under contrasting atmospheric N inputs
• Alexander Krichels, G. Darrel Jenerette, Hannah Shulman, Stephanie Piper, Aral C. Greene, Holly M. Andrews, Jon Botthoff, James O. Sickman, Emma L. Aronson, Peter M. Homyak. 2023. Bacterial denitrification drives elevated N2O emissions in arid southern California drylands
• Alexander Krichels, Peter M. Homyak, Emma L. Aronson, James O. Sickman, Jon Botthoff, Aral C. Greene, Holly M. Andrews, Hannah Shulman, Stephanie Piper, G. Darrel. Jenerette. 2023. Soil NH3 emissions across an aridity, soil pH, and N deposition gradient in southern California

• Program
  

  Maintaining Resilient Dryland Ecosystems

  https://research.fs.usda.gov/rmrs/programs/drylandecosystems
  Station

  Rocky Mountain Research Station
• Project
  

  Science to support high priority data needs at stream restoration sites in priority landscapes throughout the Forest Service Southwestern Region

  https://research.fs.usda.gov/rmrs/projects/bil-science-support-high-priority-data-needs-stream-restoration-sites-priority
  Station

  Rocky Mountain Research Station

Articles

• Article
  

  Stream restoration can increase riparian soil carbon pools

  https://research.fs.usda.gov/rmrs/articles/stream-restoration-can-increase-riparian-soil-carbon-pools
• Article
  

  Spring prescribed burning can maintain soil carbon

  https://research.fs.usda.gov/rmrs/articles/spring-prescribed-burning-can-maintain-soil-carbon
• Article
  

  Wildfires deplete soil carbon for over four years

  https://research.fs.usda.gov/rmrs/articles/wildfires-deplete-soil-carbon-over-four-years
• Article
  

  Distinct N-cycling microbial communities contribute to microtopographic variation in soil nitrous oxide emissions

  https://research.fs.usda.gov/rmrs/articles/distinct-n-cycling-microbial-communities-contribute-microtopographic-variation-soil
• Article
  

  Bacterial denitrification drives elevated nitrous oxide emissions in arid southern California drylands

  https://research.fs.usda.gov/rmrs/articles/bacterial-denitrification-drives-elevated-nitrous-oxide-emissions-arid-southern

• University of Illinois at Urbana-Champaign, Ph.D, Ecology, Evolution, And Conservation Biology, 2019
• Oberlin College, B.A., Biology and Environmental Studies, 2013