Holocene and recent fires influence on soil organic matter, microbiological and physico-chemical properties of peats in the European North-East of Russia

Дымов, А. А.; Gorbach, Nikolay; Goncharova, Nadezhda; Карпенко, Л. В.; Габов, Д. Н.; Kutyavin, Ivan N.; Startsev, V. V.; Mazur, Anton S.; Grodnitskaya, I. D.

doi:10.1016/j.catena.2022.106449

Cited by 16 publications

(6 citation statements)

References 95 publications

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“…The application of 13 C NMR spectroscopy proved to be informative in the study of soils subjected to wildfires. Due to the fact that this phenomenon leads to the widespread transformation of organic matter and an increase in black carbon pools [69][70][71], a detailed study of the molecular structure of SOM subjected to pyrogenesis has been carried out [72][73][74]. In particular, a loss of alkyl components and a relative increase in the content of aromatic fragments was observed, which indicates the apparent stabilization of organic matter molecules [75].…”

Section: Nmr Investigations Of Som Poolsmentioning

confidence: 99%

The Use of Spectroscopic Methods to Study Organic Matter in Virgin and Arable Soils: A Scoping Review

Lodygin,

Abakumov

2024

Agronomy

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The use of modern spectroscopic methods of analysis, which provide extensive information on the chemical nature of substances, significantly expands our understanding of the molecular composition and properties of soil organic matter (SOM) and its transformation and stabilization processes in various ecosystems and geochemical conditions. The aim of this review is to identify and analyze studies related to the application of nuclear magnetic resonance (NMR) and electron paramagnetic resonance (EPR) spectroscopy techniques to study the molecular composition and transformation of organic matter in virgin and arable soils. This article is mainly based on three research questions: (1) Which NMR spectroscopy techniques are used to study SOM, and what are their disadvantages and advantages? (2) How is the NMR spectroscopy technique used to study the molecular structure of different pools of SOM? (3) How is ESR spectroscopy used in SOM chemistry, and what are its advantages and limitations? Relevant studies published between 1996 and 2024 were searched in four databases: eLIBRARY, MDPI, ScienceDirect and Springer. We excluded non-English-language articles, review articles, non-peer-reviewed articles and other non-article publications, as well as publications that were not available according to the search protocols. Exclusion criteria for articles were studies that used NMR and EPR techniques to study non-SOM and where these techniques were not the primary methods. Our scoping review found that both solid-state and solution-state NMR spectroscopy are commonly used to study the structure of soil organic matter (SOM). Solution-phase NMR is particularly useful for studying soluble SOM components of a low molecular weight, whereas solid-phase NMR offers advantages such as higher 13C atom concentration for stronger signals and faster analysis time. However, solution-phase NMR has limitations including sample insolubility, potential signal aggregation and reduced sensitivity and resolution. Solid-state NMR is better at detecting non-protonated carbon atoms and identifying heterogeneous regions within structures. EPR spectroscopy, on the other hand, offers significant advantages in experimental biochemistry due to its high sensitivity and ability to provide detailed information about substances containing free radicals (FRs), aiding in the assessment of their reactivity and transformations. Understanding the FR structure in biopolymers can help to study the formation and transformation of SOM. The integration of two- and three-dimensional NMR spectroscopy with other analytical methods, such as chromatography, mass spectrometry, etc., provides a more comprehensive approach to deciphering the complex composition of SOM than one-dimensional techniques alone.

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Section: Nmr Investigations Of Som Poolsmentioning

confidence: 99%

The Use of Spectroscopic Methods to Study Organic Matter in Virgin and Arable Soils: A Scoping Review

Lodygin,

Abakumov

2024

Agronomy

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“…However, "heavy-metals" had emerged as a highly specialized and new theme, while research on "vegetation" had declined. Moreover, research on "organic-matter" had become a fundamental theme and a key direction for future research [65][66][67].…”

Section: Thematic Evolution Of Abfs-related Publicationsmentioning

confidence: 99%

Global Bibliometric Analysis of Research on the Application of Biochar in Forest Soils

Chen,

Gao,

Chen

et al. 2023

Forests

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Considering the impacts of global climate change, paths for sustainable development are of particular importance. Biochar has multiple advantages, including but not limited to climate change mitigation, waste management, soil fertility improvement, and pollution remediation. Forest soils play a significant role in terrestrial ecosystems. The application of biochar in forest soils (ABFS) is therefore considered an essential tool for improving soil quality, capturing carbon, and reducing greenhouse gas emissions. The Web of Science Core Collection database was utilized for the bibliometric analysis of ABFS publications published between 2002 and 2022. Three bibliometric software were used to analyze bibliometrics, networks, and research directions for ABFS: Bibliometrix, VOSviewer, and CiteSpace. The analysis shows that research on ABFS is always rapidly developing. Research on ABFS is engaged globally in a complex network of collaborations, and the main research has occurred in China and the United States. Collaboration among authors is relatively diffuse. Research on ABFS involves interdisciplinary integration. In the early stages of research, the origin of biochar (history and boreal forests) and its characteristics (dynamics, nitrogen content, and chemical composition) were the focus of attention. As research progressed, more attention was given to ABFS (carbon, organic matter, vegetation, and heavy metals). Our research shows that while ABFS research has a certain history, its development trend has been consistently upward and shows no signs of declining. Thus, future research will likely concentrate on ABFS. Due to the complexity of biochar functions, ample research opportunities exist in ABFS.

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“…In blueberry cultivation, it can also improve the soil aggregate structure and make the soil loose, and has strong water and nitrogen absorption, thus promoting the growth and development of blueberry plants [18]. In addition, peat contains a lot of organic acids that can reduce soil pH levels [19]. Rice husk powder, rich in carbohydrates, can be metabolized by microorganisms under specific conditions, converting them into organic acid [20].…”

Section: Introductionmentioning

confidence: 99%

Comparative Study on the Effects of Different Soil Improvement Methods in Blueberry Soil

Li,

Liu,

Wang

et al. 2024

Agronomy

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Soil improvement methods can result in changes in the microbial community in blueberry soil. Bacterial communities play an important role in soil fertilizer and plant nutrient acquisition. In this study, the response of microbial community composition, microbial function, and the nitrogen (N) cycle to different improvement methods was analyzed using high-throughput sequencing to investigate the best soil improvement method from a microbial perspective. The results showed that the highest microbial diversity was observed in the treatment involving peat combined with mushroom bran (T2), followed by the peat combined with acidified rice husk (T2) both in the rhizosphere and roots. The dominant phyla were Proteobacteria and Actinobacteria both in the blueberry rhizosphere soil and roots. Interestingly, Acidobacterium and Paludibaculum, belonging to the Acidobacteria phylum, exhibited the most significant influence and were most predominant in the T2 treatment rhizosphere soil. The T2 treatment promoted the growth of N fixation functional bacteria both in the rhizosphere soil and roots. At the module level, the T2 treatment enhanced N fixation and suppressed the assimilatory and dissimilatory nitrate reduction reactions, denitrification, and nitrification in the blueberry rhizosphere. Additionally, the T2 treatment increased the abundance of root endophytic microbes involved in N fixation. Overall, our findings suggest that the addition of peat combined with acidified rice husk is the optimal soil improvement method for blueberry cultivation.

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Holocene and recent fires influence on soil organic matter, microbiological and physico-chemical properties of peats in the European North-East of Russia

Cited by 16 publications

References 95 publications

The Use of Spectroscopic Methods to Study Organic Matter in Virgin and Arable Soils: A Scoping Review

The Use of Spectroscopic Methods to Study Organic Matter in Virgin and Arable Soils: A Scoping Review

Global Bibliometric Analysis of Research on the Application of Biochar in Forest Soils

Comparative Study on the Effects of Different Soil Improvement Methods in Blueberry Soil

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