Assessing the Ecotoxicity of Soil Affected by Wildfire

Barroso, Petra Martínez; Vaverková, Magdalena Daria; Elbl, Jakub

doi:10.3390/environments8010003

Cited by 4 publications

(4 citation statements)

References 33 publications

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“…The negative impact of diatomite on organisms is not new, as it is used as a natural pesticide in agriculture [ 40 ]. In the study by Borroso et al [ 41 ], an increased plant root inhibition was shown in a 3-day Phytotoxkit assay in sites where diatomite was added to the soil. The observed effect of diatomite therefore seems plausible and, in addition, consistent with the literature [ 42 ].…”

Section: Discussionmentioning

confidence: 99%

Modified Natural Diatomite with Various Additives and Its Environmental Potential

et al. 2023

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Diatomite has recently been the subject of intensive scientific research aimed at its extensive use in industry, breeding and agriculture. The only active diatomite mine is in Jawornik Ruski, in the Podkarpacie region of Poland. Chemical pollution in the environment, including that from heavy metals, poses a threat to living organisms. Reducing the mobility of heavy metals in the environment through the use of diatomite (DT) has recently gained much interest. More effective immobilisation of heavy metals in the environment with DT, mainly through the modification of its physical and chemical properties by various methods, should be applied. The aim of this research was to develop a simple and inexpensive material showing more favourable chemical and physical properties compared with unenriched DT in terms of metal immobilisation. Diatomite (DT), after calcination, was used in the study, considering three grain fractions, i.e., 0–1 mm (DT1); 0–0.5 mm (DT2) and 5–100 µm (DT3). Biochar (BC), dolomite (DL) and bentonite (BN) were used as additives. The proportion of DTs in the mixtures amounted to 75%, and of the additive, 25%. The use of unenriched DTs after calcination poses the risk of releasing heavy metals into the environment. Enrichment of the DTs with BC and DL resulted in a reduction or absence of Cd, Zn, Pb and Ni in aqueous extracts. It was found that for the specific surface area values obtained, the additive used for the DTs was of crucial importance. The reduction in DT toxicity has been proven under the influence of various additives. The mixtures of the DTs with DL and BN had the least toxicity. The obtained results have economic importance, as the production of the best quality sorbents from locally available raw materials reduces transport costs and thus the environmental impact. In addition, the production of highly efficient sorbents reduces the consumption of critical raw materials. It is estimated that the savings from producing sorbents with the parameters described in the article can be significant in comparison with popular competitive materials of other origins.

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Section: Discussionmentioning

confidence: 99%

Modified Natural Diatomite with Various Additives and Its Environmental Potential

et al. 2023

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“…The application of soil amendments to burnt soil modifies the soil properties (pH, distribution of substances) and changes the conditions for vegetation recovery [20,21]. Limiting factors of phytoremediation include bad root growth and development in contaminated soil.…”

Section: Discussionmentioning

confidence: 99%

“…Soil amendments can be materials of organic (e.g., compost, biochar) or inorganic (e.g., bentonite, diatomite) origin. Based on previous studies carried out by Barroso et al [20,21], the following organic soil amendments have been chosen here: biochar, compost, a combination of the two, and a combination of biochar and NPK fertilizer with Lolium perenne L., (a grass species that is commonly used for phytoremediation owing to its global geographical distribution in both cold to humid regions). Grass species are used in phytoremediation thanks to properties such as rapid growth, tolerance to contaminants, and the capability to regrow shoots after cutting [22,23].…”

Section: Introductionmentioning

confidence: 99%

Aided Phytoremediation in Fire-Affected Forest Soil

Barroso

Winkler

Vaverková

et al. 2022

Fire

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Wildfires are occurring with an increasing frequency, and substances they generate can negatively affect the environment. A pot experiment with Lolium perrene was performed on burnt soil supplemented with organic (biochar, compost) and inorganic (NPK fertilizer) supplements and combinations of soil amendments in order to assess the possibility of aided phytomanagement of fire-affected areas. Soil amendments affect more aboveground biomass growth than underground biomass growth. Organic amendment, biochar, and compost promoted aboveground biomass growth; however, they did not increase the bioconcentration of metal elements in the roots. Unamended burnt soil achieved the highest bioconcentration of metal elements in underground biomass, while it produced significantly less aboveground biomass than burnt soil amended with biochar and with compost. Based on the ash composition from this study, aided phytostabilization appears to be a suitable phytomanagement method, as the priority is to rapidly recover vegetation in order to prevent soil erosion. This study therefore recommends selecting a suitable phytoremediation method based on the composition of ash.

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“…Landscape position or condition can also affect the determination of hydrologic recovery, with some slope aspects having different recovery trajectories and timescales (e.g., Cerda et al, 1995;Kinoshita and Hogue, 2011). Post-fire land management, including treatments to reduce runoff and erosion as well as post-fire logging or site preparation for planting can substantially affect recovery trajectories (e.g., Barroso et al, 2021;Cole et al, 2020;Di Prima et al, 2017;García-Orenes et al, 2017;Kim et al, 2021;Leverkus et al, 2021;Vieira et al, 2018;Wagenbrenner et al, 2015) and may influence the selection of a recovery determination approach. Incorporating anthropogenic stressors (e.g., altered disturbance regimes, habitat conversion and degradation, invasive vegetation species, pollution, see Maxwell et al (2016)) may be essential when assessing functional recovery, especially when projecting hydrologic function of fire-affected watersheds into the future (Kinoshita et al, 2016).…”

Section: Barriers and Challenges For Assessing Post-fire Hydrologic R...mentioning

confidence: 99%

Hydrologic recovery after wildfire: A framework of approaches, metrics, criteria, trajectories, and timescales

Ebel

Wagenbrenner

Kinoshita

et al. 2022

Journal of Hydrology and Hydromechanics

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Deviations in hydrologic processes due to wildfire can alter streamflows across the hydrograph, spanning peak flows to low flows. Fire-enhanced changes in hydrologic processes, including infiltration, interception, and evapotranspiration, and the resulting streamflow responses can affect water supplies, through effects on the quantity, quality, and timing of water availability. Post-fire shifts in hydrologic processes can also alter the timing and magnitude of floods and debris flows. The duration of hydrologic deviations from a pre-fire condition or function, sometimes termed hydrologic recovery, is a critical concern for land, water, and emergency managers. We reviewed and summarized terminology and approaches for defining and assessing hydrologic recovery after wildfire, focusing on statistical and functional definitions. We critically examined advantages and drawbacks of current recovery assessment methods, outline challenges to determining recovery, and call attention to selected opportunities for advancement of post-fire hydrologic recovery assessment. Selected challenges included hydroclimatic variability, post-fire land management, and spatial and temporal variability. The most promising opportunities for advancing assessment of hydrologic recovery include: (1) combining statistical and functional recovery approaches, (2) using a greater diversity of post-fire observations complemented with hydrologic modeling, and (3) defining optimal assemblages of recovery metrics and criteria for common hydrologic concerns and regions.

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Assessing the Ecotoxicity of Soil Affected by Wildfire

Cited by 4 publications

References 33 publications

Modified Natural Diatomite with Various Additives and Its Environmental Potential

Modified Natural Diatomite with Various Additives and Its Environmental Potential

Aided Phytoremediation in Fire-Affected Forest Soil

Hydrologic recovery after wildfire: A framework of approaches, metrics, criteria, trajectories, and timescales

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