[Geospatial] Reminder: Geospatial/GIS meetup tomorrow, May 13

[Janet Reyes]

Hello everyone,

This is a gentle reminder that our next Geospatial/GIS meetup will be held tomorrow, Tuesday, May 13 from 12:00-12:50 pm.

This meetup will be held on Zoom only.

https://ucr.zoom.us/j/98698561850?pwd=U7vwx7UUllSXX01Ds7wS5neMn0nyHp.1

Meeting ID: 986 9856 1850
Passcode: 780827


Dr. Nan Li, Associate Project Scientist in Environmental Sciences, will give a presentation on From Prairie to Crop: Spatiotemporal Dynamics of Surface Soil Organic Carbon Stocks Over 160 Years in Illinois.

In this study, I explored the 160 years soil organic carbon (SOC) change across Illinois using geospatial modeling and machine learning. I applied a space-for-time substitution approach, combining legacy soil data, historical land use/land cover records, and environmental covariates to estimate how SOC stocks have shifted from 1845 to 2012. Using random forest models, I mapped SOC at high resolution for both A horizons and the 0-30 cm depth layer. The analysis revealed that converting native prairie and forest to cropland led to dramatic SOC losses-up to 50% in some regions, particularly in Mollisols of central Illinois. This work not only visualizes the long-term carbon consequences of land use change but also pinpoints SOC loss hotspots that could be prioritized for carbon sequestration. By integrating GIS, historical datasets, and predictive modeling, I aimed to demonstrate how spatial tools can help us reconstruct environmental baselines and support climate-resilient land management.

Dr. Nan Li is a project scientist at UC Riverside. Her research focuses on environmental soil physics, digital agriculture, and the application of geospatial technologies and machine learning to study soil-plant-water interactions in agroecosystems. She integrates remote sensing, proximal sensing, and big data analytics to model soil moisture and nutrient dynamics across spatial and temporal scales. Nan has worked on diverse projects across Australia, Illinois, and California, and is passionate about developing geospatial tools for sustainable land and water management.


The meetup will start with announcements of general interest.

Registration is appreciated but not required. If you have already registered, thank you! If not, you can register by responding to the calendar invitation you may have received on May 1, or register through Eventbrite<https://www.eventbrite.com/e/geospatialgis-meetups-tickets-1307132952849?aff=oddtdtcreator>.

The meetup will be recorded. (Please do not use AI note-taking tools; I'll provide notes and a link to the recording after the meetup.)

Feel free to forward this invitation to anyone who may be interested.

I hope you can join us for this last presentation-focused meetup of the academic year!

Best,


Janet Reyes
Geospatial Information Librarian
UCR Library | University of California, Riverside
P.O. Box 5900 | Orbach Library, Room 118
Riverside, CA 92517-5900
Office: 951.827.6421 | Fax: 951.827.2255 | janet.reyes at ucr.edu<mailto:janet.reyes at ucr.edu>

Web<https://library.ucr.edu/> | Facebook<https://www.facebook.com/ucrlibrary> | Instagram<https://www.instagram.com/ucrlibrary/> | YouTube<https://www.youtube.com/user/ucrlibraries>
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