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Beetle on a flower
Forestry students
field day
Industrial Hemp. Image: Lee Bethlehem


We study People, Land Use and Society (PLUS). The PLUS lab is directed by Dr. John Tyndall, a natural resource economist and social scientist with broad interests in environmental and natural resource economics, policy and sociology within forestry, agriculture, and urban contexts. 

Congrats to Melanie Bogert!

Melanie Bogert successfully defended her MS thesis today (May 11)! Her thesis is titled: "Plant and Insect Community Responses to Manure Application in Prairies".  Here is a pdf of her research talk (she gave a fantastic presentation!)

Congrats to Haleigh Summers and colleagues!  Haleigh Summers, Tiffanie Stone, Loulou Dickey et al. won First Prize for their poster presented at the ISU Environmental Science Symposium April 17. Check it out: “Intersections of Barriers to Equitable Food-Energy-Water System Resources Across the United States

New $1.8 M Project - Agrivoltaics in Iowa! (Dec 8):  The PLUS Lab is now into Agrivoltics! And the US DOE is helping us to pursue our ideas regarding horticultural and honey production systems that best fit solar farm designs for Iowa, and how best can these agrivoltaic systems provide farming opportunities to new and beginning farmers (particularly underserved/ underrepresented farmers). This project will feature engineers, horticultural specialists, entomologists, economists and other social scientists, and outreach specialists collectively working to advance renewable energy opportunities here in Iowa and serve as a model for how this can be done throughout the region.

The ACPF in Action (Nov 9):  Jessica Nelson presented some of her work recently (November 9), check it out!  The North Central Region Water Network Webinar Series:

The FiNRT ("fine art") is available for use! News Release (June 23)

The  Financial and Nutrient Reduction Tool ( FiNRT) is an ACPF-compatible tool that provides information about estimated costs and nitrate reduction outcomes from ACPF-generated conservation scenarios. FiNRT offers conservation planners the ability to examine opportunities and tradeoffs regarding BMPs more effectively on the landscape and offers information about potential outcomes from various conservation scenarios.

Check it out @:


Publications (*student authors)


Bravard, E.*, Zimmerman, E., Tyndall, J.C., James, D. (Forthcoming). Welcome to the new frontier: Introducing Extension to the next generation of conservation planning tools. Journal of Extension

Stone, T.*, Dickey, L.C.*, Summers, H.*, Thompson, J.R., Rehmann, C.R., Zimmerman, E., and JC Tyndall. (2023) A systematic review of social equity in FEWS analyses. Frontiers in Environmental Science.


Audia E.*, Schulte, L.A., J.C. Tyndall. (2022) Measuring changes in financial and ecosystems service outcomes with simulated grassland restoration in a Corn Belt watershed. Frontiers in Sustainable Food Systems. 13 September 2022.

Bravard, E.*, Zimmerman, E., James, D., Tyndall, J.C. (2022). The Agricultural Conservation Planning Framework Financial and Nutrient Reduction Tool: A planning tool for cost effective conservationJournal of Environmental Quality.

Tyndall, J.C. (2022) Prairie and Tree Planting Tool - PT2 (1.0): A conservation decision support tool for Iowa, USAAgroforestry Systems.


View full publication list