Changes in the soil hydrophobicity and structure of humic substances in sandy soil taken out of cultivation

Mielnik, Lilla; Hewelke, Edyta; Weber, Jerzy; Oktaba, Lidia; Jończak, Jerzy; Podlasiński, Marek

doi:10.1016/j.agee.2021.107554

Cited by 35 publications

(22 citation statements)

References 87 publications

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“…The increased hydrophobicity strongly limits the leachability of organic matter, and thus positively influences soil organic carbon sequestration in the soil. Hydrophobicity indicates an affinity of the soil matter to the water particles, and thus, has an impact on soil wetting and retention of water, and consists of an important feature for the evaluation of SOC quality [23]. For soil S1, we have not observed a clear tendency for hydrophobicity with the age of remediation (Figure 3).…”

Section: Resultsmentioning

confidence: 75%

“…The ratio of hydrophobic C and hydrophilic C indicates hydrophobicity of the soil and consists of a sum of unoxidized atoms of carbon [20]. This ratio is considered to be an important indicator of SOM quality [23]. The value of hydrophobicity of the SOM results from the presence of aliphatic C-H founded in methyl, methylene, and methine groups [38].…”

Section: The Influence Of the Remediation Post-mining Soils On The Stability Of Socmentioning

confidence: 99%

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Potential and Mechanisms for Stable C Storage in the Post-Mining Soils under Long-Term Study in Mitigation of Climate Change

2021

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Carbon storage in soil increases along with remediation of post-mining soils. Despite many studies on the issue of carbon sequestration in soils, there is a knowledge gap in the potential and mechanisms of C sequestration in post-mining areas. This research, including nuclear magnetic resonance analysis, determines the soil organic carbon formation progress in a long-term study of limestone (S1), and lignite (S2) post-mining soil under different remediation stages. The main remediation target is reforesting; however, S2 was previously amended with sewage sludge. The study showed that for S1, the O-alkyl groups were the dominant fraction in sequestered soil. However, for S2, increased fractions of acetyl-C and aromatic C groups within remediation progress were observed. The remediation of S1 resulted in improved hydrophobicity and humification; however, the decrease in aromatic groups’ formation and C/N ratio was noted. For S2, we noticed an increase for all indicators for sequestered C stability, which has been assigned to the used sewage sludge in remediation techniques. While both post-mining soils showed huge potential for C sequestration, S2 showed much higher properties of sequestered C indicating its higher stabilization which can suggest that soils non-amended with sewage sludge (S1) require more time for stable storage of C.

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Section: Resultsmentioning

confidence: 75%

Section: The Influence Of the Remediation Post-mining Soils On The Stability Of Socmentioning

confidence: 99%

Potential and Mechanisms for Stable C Storage in the Post-Mining Soils under Long-Term Study in Mitigation of Climate Change

2021

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“…2 B), although the OC contents and pH of the vineyard soil, and both the river and wetland sediments (Rouffach and Alteckendorf) were similar ( Table 1 ). The fraction of non-extractable residues (NER) may increase with lower water content due to the more hydrophobic nature of soil organic matter controlling pesticide extraction [22] . Therefore, together with changes in soil texture and structure, pH, soil OC content and the initial soil water content appear as fundamental parameters controlling pesticide aging in soil [23] and thus extraction from soil and sediment samples.…”

Section: Extraction From Soil and Sedimentmentioning

confidence: 99%

Simple extraction methods for pesticide compound-specific isotope analysis from environmental samples

et al. 2022

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“…It has significant repercussions on plant growth (Doerr et al, 2000), reduces evaporation (Rye and Smettem, 2017), retards infiltration, thereby enhancing overland flow/surface runoff and erosion (Ebel, 2020;Müller et al, 2018). SWR characteristics are influenced by soil water content (Leelamanie and Nishiwaki, 2019), soil water retention (Czachor et al, 2020), soil texture (Benito et al, 2019), soil pH (Diehl et al, 2010), SOC content and structure of humic substances (Mielnik et al, 2021), and clay (mainly kaolinite) content (Lichner et al, 2006). SWR is temporally and spatially variable (Täumer et at., 2006) and varies with depth (Sepehrnia et al, 2017;Turski et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Fire-induced changes in soil properties depend on age and type of forests

Hološ

Šurda

Lichner

et al. 2022

Journal of Hydrology and Hydromechanics

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Wildfires affect different physical, chemical, and hydraulic soil properties, and the magnitude of their effects varies depending on intrinsic soil properties and wildfire characteristics. The objectives of this study are: to estimate the impact of heating temperature (50–900°C) on the properties of sandy soil (Arenosol) taken in 1) coniferous forests (Scots pine Pinus sylvestris) of different ages (30 and 100 years); and 2) coniferous (Scots pine Pinus sylvestris) and deciduous (alder Alnus glutinosa) forests of the same age (30 years). The forests are located in the central part of the Borská nížina lowland (western Slovakia), and the properties treated were soil organic carbon content (SOC), pH, and soil water repellency (measured in terms of water drop penetration time, WDPT). It was found that the impact of heating temperature on the properties of sandy soil is great and depends on both the age and type of forest. The SOC value decreased unevenly with temperature in all three soils, and it was higher in the 30-year-old deciduous forest soil than in the 30-year-old coniferous forest soil. The value of pH increased monotonously with temperature from 200 °C, and it was higher in 30-year-old coniferous forest soil than in the 100-year-old coniferous forest soil. SOC and WDPT in the 100-year-old coniferous forest soil were higher than SOC and WDPT in the 30-year-old coniferous forest soil. Results obtained (decrease in SOC, disappearance of SWR after heating to 400 °C, and increase in pH from heating temperature 200 °C) bring important information for post-fire vegetation restoration and post-fire management of Central European forests established on sandy soil.

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Changes in the soil hydrophobicity and structure of humic substances in sandy soil taken out of cultivation

Cited by 35 publications

References 87 publications

Potential and Mechanisms for Stable C Storage in the Post-Mining Soils under Long-Term Study in Mitigation of Climate Change

Potential and Mechanisms for Stable C Storage in the Post-Mining Soils under Long-Term Study in Mitigation of Climate Change

Simple extraction methods for pesticide compound-specific isotope analysis from environmental samples

Fire-induced changes in soil properties depend on age and type of forests

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