Journal Articles

Krohn, J., Hong, H., Matisziw, T., Pile Knapp, L., Fraser, J., Sunde, M. (2025). Detecting the Distribution of Callery Pear (Pyrus calleryana) in an Urban U.S. Landscape Using High Spatial Resolution Satellite Imagery and Machine Learning. Remote Sensing. View article

Krohn, J., Davis-Manigaulte, J., Fulcher, C., & Tiffany, J. (2022). Visualizing Diversity: Spatial Data as a Resource Enabling Extension to Better Engage Communities. Journal of Human Sciences and Extension, 10(2). View article

Briefs, Blogs and Other Publications

Krohn, J. (2024, February 21). Decoding Commuting Distance Patterns. Sparkmap Blog. https://sparkmap.org/decoding-commuting-distance-patterns/

Spell, Alan and Justin Krohn (2024). Commuting Trends. Missouri Economy Indicators 5(15). https://shorturl.at/Rb8rb

Spell, Alan and Justin Krohn (2022). Commuting Trends. Missouri Economy Indicators 4(3). shorturl.at/bpu78

Spell, A., Jacobs, K., Low, S., & Krohn, J. (2022, September 19). The Importance of Off-Farm Income to the Agricultural Economy. CoBank Knowledge Exchange / University of Missouri Extension.
This report highlights how off-farm employment and income underpin the financial stability of many U.S. farm households and reflects the growing economic interdependence between rural and nearby metro economies. It summarizes recent trends in farm household income and employment, motivations for off-farm work (including reliable income and benefits), and broader rural labor-market shifts relevant to rural development and agricultural policy.
Read the report (PDF)