Vegetation Biomass Data from the 2023 Department of Defense Wildland Fire Science Initiative Eglin Air Force Base Campaign

To characterize fine-scale variations in vegetation structure, quantify heterogeneity, and capture fuel estimation and consumption, destructive clip plots were sampled across the G-20, G-25, and L-25 units. This dataset provides the vegetation biomass by fuel type data collected before (December 2022) and after (March 2023) the prescribed burns.

Data and Resources

Additional Info

Mező Érték
Last Updated Július 2, 2025, 21:51 (UTC)
Created Július 2, 2025, 21:51 (UTC)
Forrás https://wfsi-data.org/view/doi%3A10.60594/W4ZW25
associated_parties Gregg Chapman, gregg.chapman@usda.gov, USDA Forest Service, Southern Research Station, Clemson, SC, https://orcid.org/0009-0004-6735-9867, contributor | Derek Wallace, derek.wallace@usda.gov, USDA Forest Service, Southern Research Station, Athens, GA, https://orcid.org/0009-0001-2533-4838, contributor | Vanessa Niemczyk, vniemczyk@talltimbers.org, Tall Timbers Research Station, Tallahassee, FL, contributor
award Object-based aggregation of fuel structures, physics-based fire behavior and self-organizing smoke plumes for improved fuel, fire, and smoke management on military lands.
creators Eva Louise Loudermilk, eva.l.loudermilk@usda.gov, USDA Forest Service, Southern Research Station, Athens GA, https://orcid.org/0000-0001-8191-8670 | Andrew Hudak, andrew.hudak@usda.gov, USDA Forest Service, Rocky Mountain Research Station, Moscow ID, https://orcid.org/0000-0001-7480-1458 | Chad Hoffman, c.hoffman@colostate.edu, Colorado State University, Department of Forest and Rangeland Stewardship , https://orcid.org/0000-0001-8715-937X | Christie Hawley, christie.m.hawley@usda.gov, USDA Forest Service, Southern Research Station, Athens GA, https://orcid.org/0000-0001-9105-2065 | Irenee Payne, irenee.payne@usda.gov, USDA Forest Service, Southern Research Station, Athens, GA, https://orcid.org/0009-0000-7490-6954 | Mary Carlton Murphy, mary.murphy@usda.gov, USDA Forest Service, Southern Research Station, Athens GA, https://orcid.org/0009-0002-2453-9927 | Scott Pokswinski, spokswinski@newmexicoconsortium.org, New Mexico Consortium, Center for Applied Fire and Ecosystems Science, https://orcid.org/0000-0001-5753-4132
doi doi:10.60594/W4ZW25
funder U. S. Department of Defense (DoD), Strategic Environmental Research and Development Program (SERDP), http://dx.doi.org/10.13039/100013316
maintainor Christie Hawley, christie.m.hawley@usda.gov
method Eglin Air Force Base (EAFB) is a 464,000-acre United States Air Force (USAF) base in the western Florida Panhandle, located in Santa Rosa, Okaloosa, and Walton counties. In 2023, G-20 (382 ha/946 ac), G-25 (548 ha/1354 ac), and L-25 (117 ha/290 ac) were available for prescribed burning. G-20 and G-25 are located on the western side of EAFB. G-20 is between Range Road 213 and B-70, and G-25 is south of B-70 and split by Live Oak Creek. These units were burned three years ago (2020). L-25 is located on the eastern side of EAFB, south of Range Road 213, across from the C80C Test site. It was last burned 4 years ago (2019). G-20 and G-25 were broken into smaller, more manageable sampling blocks. Using a remnant, undesignated EAFB road, G-20 was split into G-20W (184 ha/455 ac) and G-20E (193 ha/476 ac). Live Oak Creek was used to split G-25 into G-25W (235 ha/581 ac) and G-25E (311 ha/770 ac). In December 2022, 150 sandhills, 30 planted pine, 6 oak hammock, and 23 hardwood hammock/transition zone macroplots were established. These were distributed across the sampling blocks as follows: G-20W: 30 sandhills, 10 planted pine, 0 oak hammock, 0 hardwood hammock, 0 transition zone G-20E: 30 sandhills, 0 planted pine, 0 oak hammock, 5 hardwood hammock, 0 transition zone G-25W: 30 sandhills, 10 planted pine, 0 oak hammock, 0 hardwood hammock, 5 transition zone G-25E: 30 sandhills, 10 planted pine, 0 oak hammock, 4 hardwood hammock, 4 transition zone L-25: 30 sandhills, 0 planted pine, 6 oak hammock, 5 hardwood hammock, 0 transition zone The pre-burn clip plot was located at the macroplot center. A post-burn clip plot was established approximately two to three meters from the macroplot center. The post-burn clip plot was visually identified as having a fuel composition and structure similar to the pre-burn clip plot. From the macroplot center, the distance and azimuth to the northwest corner of the post-burn clip plot were measured. The compass declination was set to zero (magnetic north). The sampling area was 0.5 m in width by 0.5 m in length by 1 m in height. The frame was subdivided into two vertical sampling layers or strata: ground to 30 cm and 30 to 100 cm. Vegetation and fuel categories were recorded in both the pre-and post-burn clip plots. Vegetation, fuel category, and biomass data were collected using a simplified approach from Hawley et al. 2018. The vegetation and fuel categories for this site were defined as woody live vegetation, now dead woody vegetation, woody litter, woody dead and downed 1-hour fuels, 10-hour fuels, 100-hour fuels, 1000-hour fuels, pinecones, conifer litter, conifer needles, and herbaceous vegetation, which includes graminoids, forbs, and vines. The ‘now dead woody vegetation’ category was used only in post-burn sampling to classify pre-burn woody live stems partially consumed by the prescribed fire and when the aboveground plant was dead or top-killed. Before the prescribed burn, within both the pre- and post-burn clip plots, the presence and absence of each vegetation and fuel category were recorded within each stratum. At the pre-burn plot, biomass was destructively harvested from each stratum. After the prescribed burn, within each post-burn clip plot, the presence and absence of each vegetation and the fuel category were recorded again, and the biomass was destructively harvested within each stratum. In the Athens Prescribed Fire Science Laboratory, Athens, GA, USA, the clip plot biomass was sorted, dried, and weighed to determine each vegetation and fuel category's dry weight (grams). The sorted biomass was dried at 60 ◦C until the sample's weight no longer changed, typically within 48–72 hours. NOTE: A prescribed burn was not conducted at L-25 during this campaign; therefore, this unit does not have post-burn data. Hawley, C.M.; Loudermlk, E.L.; Rowell, E.M.; Pokswinski, S. A novel approach to fuel biomass sampling for 3D fuel characterization. MethodsX 2018, 5, 1597–1604. https://doi.org/10.1016/j.mex.2018.11.006
project Funding Awards RC20-1346 and RC19-1119 for DoD Wildland Fire Science Initiative (WFSI)
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temporal {"endTime": "2023-03-20", "startTime": "2022-12-06"}