U.S. Department of EnergyOffice of Scientific and Technical Information
Heating effects on jack pine pyrogenic organic matter properties from a pyrocosm study in 2022
Abstract
This dataset contains data associated with the preprint “Fire removes preexisting pyrogenic organic matter from the ecosystem through the mechanisms of both direct combustion and increasing mineralizability” (Luo et al., 2025b), which is the complementary study to the published paper “Reburning pyrogenic organic matter: a laboratory method for dosing dynamic heat fluxes from above” (Luo et al., 2025a). We designed a full-factorial experiment with different burial depths of jack pine (Pinus banksiana Lamb) pyrogenic organic matter (PyOM) (Surface, 1 cm, and 5 cm) and different heat-flux profiles (High, Low, and Control) to examine how subsequent fires affect the properties of preexisting PyOM. We measured total carbon (C), pH, dissolved organic carbon (DOC), dissolved inorganic carbon (DIC), and mineralized C (as CO₂-C, from a 12-week incubation).We found that high heat flux and/or surface placement resulted in substantial direct C losses through combustion. Intermediate heat exposure produced both combustion losses and increases in DOC and mineralizability, which may have complex long-term implications: an increased dissolved fraction of PyOM may promote downward transport into mineral soils and potentially contribute to deeper, longer-term C storage, but it may also make PyOM more susceptible to microbial decomposition. Under the lowest heat flux and deepest burial,more »
- Authors:
-
;
;
- University of Wisconsin - Madison
- Northern Research Station, USDA Forest Service
- Forest Products Laboratory, USDA Forest Service
- University of British Columbia
- Publication Date:
- DOE Contract Number:
- AC02-05CH11231
- Research Org.:
- Dissection of Carbon and Nitrogen Cycling in Post-Fire Soil Environments using a Genome-Informed Experimental Community (DE-SC0020351)
- Sponsoring Org.:
- U.S. DOE > Office of Science > Biological and Environmental Research (BER); University of Wisconsin-Madison Hatch
- Subject:
- 54 ENVIRONMENTAL SCIENCES; Biochar; Black carbon; Burn; Carbon; Charcoal; Combustion; Cone calorimeter; EARTH SCIENCE > AGRICULTURE > FOREST SCIENCE > FOREST FIRE SCIENCE; EARTH SCIENCE > AGRICULTURE > SOILS > CARBON; EARTH SCIENCE > AGRICULTURE > SOILS > SOIL PH; EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > FIRE ECOLOGY; EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > FIRE ECOLOGY > FIRE DYNAMICS; Fire; Fire simulation; Heat flux; Jack pine; Mass loss calorimeter; Organic matter; PyOM; Pyrogenic organic matter; Sand heating; Soil heating; Temperature; pyrogenic_organic_matter_change_after_heating_in_sand_with_depths
- OSTI Identifier:
- 3005739
- DOI:
- https://doi.org/10.15485/3005739
Citation Formats
Luo, Mengmeng, Yedinak, Kara, Bourne, Keith, and Whitman, Thea. Heating effects on jack pine pyrogenic organic matter properties from a pyrocosm study in 2022. United States: N. p., 2024.
Web. doi:10.15485/3005739.
Luo, Mengmeng, Yedinak, Kara, Bourne, Keith, & Whitman, Thea. Heating effects on jack pine pyrogenic organic matter properties from a pyrocosm study in 2022. United States. doi:https://doi.org/10.15485/3005739
Luo, Mengmeng, Yedinak, Kara, Bourne, Keith, and Whitman, Thea. 2024.
"Heating effects on jack pine pyrogenic organic matter properties from a pyrocosm study in 2022". United States. doi:https://doi.org/10.15485/3005739. https://www.osti.gov/servlets/purl/3005739. Pub date:Tue Dec 31 23:00:00 EST 2024
@article{osti_3005739,
title = {Heating effects on jack pine pyrogenic organic matter properties from a pyrocosm study in 2022},
author = {Luo, Mengmeng and Yedinak, Kara and Bourne, Keith and Whitman, Thea},
abstractNote = {This dataset contains data associated with the preprint “Fire removes preexisting pyrogenic organic matter from the ecosystem through the mechanisms of both direct combustion and increasing mineralizability” (Luo et al., 2025b), which is the complementary study to the published paper “Reburning pyrogenic organic matter: a laboratory method for dosing dynamic heat fluxes from above” (Luo et al., 2025a). We designed a full-factorial experiment with different burial depths of jack pine (Pinus banksiana Lamb) pyrogenic organic matter (PyOM) (Surface, 1 cm, and 5 cm) and different heat-flux profiles (High, Low, and Control) to examine how subsequent fires affect the properties of preexisting PyOM. We measured total carbon (C), pH, dissolved organic carbon (DOC), dissolved inorganic carbon (DIC), and mineralized C (as CO₂-C, from a 12-week incubation).We found that high heat flux and/or surface placement resulted in substantial direct C losses through combustion. Intermediate heat exposure produced both combustion losses and increases in DOC and mineralizability, which may have complex long-term implications: an increased dissolved fraction of PyOM may promote downward transport into mineral soils and potentially contribute to deeper, longer-term C storage, but it may also make PyOM more susceptible to microbial decomposition. Under the lowest heat flux and deepest burial, most PyOM was retained, and changes in DOC and C mineralization were minimal. Finally, PyOM pH, an important chemical property, decreased under low-temperature heating but increased under higher temperatures.We uploaded pH data for all samples (“pH_of_all_samples.csv”); pH and temperature-related data (peak temperature and degree hours) for samples in High and Low heat-flux treatments (“pH_vs_peakT_and_degree_hours_only_for_heated_samples.csv”); total C data (“CN_pct_C_stock_C_loss_in_samples.csv”); DOC and DIC data (“doc_dic.csv”); and mineralized C (CO₂-C) data (“CO2-C_all_original.csv”). Additional details can be found in the Methods & Sampling section.All datasets uploaded to ESS-DIVE are clearly labeled, cleaned, and include both raw and derived data, ready for reuse in other analyses. All analysis code and raw datasets are also available on GitHub: https://github.com/MengmengLuo/Fire-removes-preexisting-pyrogenic-organic-matter-from-the-ecosystem.},
doi = {10.15485/3005739},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Dec 31 23:00:00 EST 2024},
month = {Tue Dec 31 23:00:00 EST 2024}
}