Wildland Fire

Filkov, Alexander I.; Cawson, Jane G.; Swan, Matthew; Penman, Trent D.

doi:10.1007/978-3-030-94356-1_7

Cited by 3 publications

(1 citation statement)

References 153 publications

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“…The raging fire during burning kills the grasses and organisms that inhabit the soil. The problem is that bush burning destroys the soil structure [12] [13] and leads to erosion of chemicals into the swampy mangrove soil and surrounding water. The leaching of heavy metals down the soil profile results in the loss of soil nutrients, which negatively impacts the soil surface organisms.…”

Section: Introductionmentioning

confidence: 99%

Environmental Impact of Bush Burning on the Physico-Chemistry of Mangrove Soil at Eagle Island, Niger Delta, Nigeria

Numbere¹,

Obanye²

2023

AJPS

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Wetland soils derive their chemical composition from the sedimentary rock underneath. Among the metals produced are trace and nutrient elements which facilitate plant growth. Bush burning near mangrove forest is a common practice that has not been given much attention despite its negative impact on the environment. We thus hypothesize that the application of fire on wetland soil will negatively impact the soil chemistry. We collected soil samples from burnt and unburnt soilsat different distances from the point of burning to compare the concentration of nutrient elements (Calcium (Ca 2+ ), iron (Fe), Magnesium (Mg), Nitrate ( 3 NO − ), Phosphate ( 3 4

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Section: Introductionmentioning

confidence: 99%

Environmental Impact of Bush Burning on the Physico-Chemistry of Mangrove Soil at Eagle Island, Niger Delta, Nigeria

Numbere¹,

Obanye²

2023

AJPS

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Thermal and calorimetric investigations of some vegetative fuels

Moinuddin,

Arun,

Filkov

et al. 2024

Fire and Materials

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Bushfires pose a significant threat to numerous countries, often causing vast property damages and loss of lives. Efforts to combat and manage these fires heavily rely on predicting the fires' rate of spread and intensity. A significant component of these predictions involves understanding the thermophysical characteristics of vegetative fuels. The accuracy of predictive models (especially physical models) also depends on obtaining precise thermophysical and combustion parameters. This research aims to provide a comprehensive set of thermal degradation and combustion parameters for surface and near‐surface fuel samples collected during prescribed fire experiment conducted in April 2022 in Little Desert National Park, Victoria, Australia. Firstly, fuel properties like fuel height, moisture content, bulk density, fuel load and heat of combustion were meticulously characterized for both surface and near‐surface samples. Then activation energies for degradation reactions were determined using the Flynn–Wall–Ozawa method and for the determination of pre‐exponential factors, in most cases these reactions closely aligned with a Second order model. This was followed by determination of other parameters such as heat of reaction, specific heat and conductivity. It was found that the density, activation energy and heat of combustion did not vary significantly across the six samples under question. The comprehensive set of obtained parameters will likely help to facilitate better predictions in fire propagation modelling.

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Comprehensive laboratory study on smoke gases during the thermal oxidative decomposition of forest and vegetation fuels

Piechnik,

Heydick,

Hofmann

et al. 2024

Fire and Materials

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This study investigates the composition of smoke gases in forest and vegetation samples to draw conclusions about the actual smoke gas composition during wildfires. The focus is particularly on regions with extensive pine forests, like in Eastern Germany. The relevance of smoke gases is well illustrated by the example of wildfires in Québec, influencing air quality in New York, in 2023. By employing a modified DIN tube furnace, a bench‐scale test set‐up, the research emphasizes the examination of smoke composition from tree species and ground cover, prioritizing gases while disregarding particles. Key smoke gases are identified as CO, CO2, SO2, HCN, C3H4O (acrolein) and CH2O (formaldehyde) and their concentrations are compared with Acute Exposure Guideline Levels (AEGL) limits. Acknowledging the limitations of AEGL usage and the problem with direct quantitative comparison of toxicant concentrations (cf. ISO 29903‐1:2020), the study highlights variations in smoke composition across different samples. The results of the studies reveal a significant disparity in CO concentration between dry and fresh pine needles. Frequently, the AEGLs of key gases are exceeded significantly. The elemental analysis of the barks indicates distinct differences in composition, reflecting in the concentrations of smoke gases. The ratio of 1 mole of substance turnover to the identified key components will be used to determine input parameters for the subsequent numerical simulation.

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Wildland Fire

Cited by 3 publications

References 153 publications

Environmental Impact of Bush Burning on the Physico-Chemistry of Mangrove Soil at Eagle Island, Niger Delta, Nigeria

Environmental Impact of Bush Burning on the Physico-Chemistry of Mangrove Soil at Eagle Island, Niger Delta, Nigeria

Thermal and calorimetric investigations of some vegetative fuels

Comprehensive laboratory study on smoke gases during the thermal oxidative decomposition of forest and vegetation fuels

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