# Interactive effects of fire and plant invasion on belowground processes and microbiome functions

> **NSF 01002526DB NSF RESEARCH & RELATED ACTIVIT** · University of Arizona (AZ) · $558,676

## Abstract

Nonnative weedy plants can promote wildfires. In the Southwestern U.S., for example, weedy grasses can fill gaps between native cacti, significantly increasing fire fuel availability, leading to bigger fires. To reduce impacts of this weed-fire connection scientists have traditionally focused on the planting of native plant species. Focusing on plants alone, however, might be misplaced. Important processes that affect fire behavior might occur below ground, in the soil, and may play a crucial role in post-fire habitat recovery. This project will study the bacteria and viruses (microbes) and the different types of organic matter in soil to better understand the relationship between weedy plants and wildfire. Once the researchers understand these soil processes, they will design inocula that contain soil and plant seeds that promote recovery in damaged areas. Combining the right belowground (soil) and aboveground (seeds) ingredients, the researchers hope to create an environment where soil microoganisms promote growth of native plants, which in turn provide nutrients back to the soil that promote growth of beneficial microbes. The project will publicize its results to land managers via workshops, extension publications, and the EcoRestore digital portal. In addition, high school students participating in a free outdoor science program will collect data, identify plants and maintain experimental plots.

With increasing temperature, drought severity and fire frequency, western 

## Key facts

- **NSF award ID:** 2422603
- **Awardee organization:** University of Arizona (AZ)
- **SAM.gov UEI:** ED44Y3W6P7B9
- **PI:** Albert Barberán
- **Primary program:** 01002526DB NSF RESEARCH & RELATED ACTIVIT
- **All programs:** —
- **Estimated total:** $558,676
- **Funds obligated:** $558,676
- **Transaction type:** Standard Grant
- **Period:** 07/01/2025 → 06/30/2028

## Primary source

NSF Award Search: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2422603

## Citation

> US National Science Foundation, Award 2422603, Interactive effects of fire and plant invasion on belowground processes and microbiome functions. Retrieved via AI Analytics 2026-06-08 from https://api.ai-analytics.org/grant/nsf/2422603. Licensed CC0.

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