title: The Use of Spectroscopic Methods to Study Organic Matter in Virgin and Arable Soils: A Scoping Review
metadata.name: dc.contributor.author
metadata.value: Abakumov, Evgeny
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Lodygin, Evgeny
metadata.lang: -
metadata.name: dc.date.accessioned
metadata.value: 2024-05-16T11:11:04Z
metadata.lang: -
metadata.name: dc.date.available
metadata.value: 2024-05-16T11:11:04Z
metadata.lang: -
metadata.name: dc.date.issued
metadata.value: 2024-05-09
metadata.lang: -
metadata.name: dc.identifier.citation
metadata.value: Lodygin, E.; Abakumov, E. The Use of Spectroscopic Methods to Study Organic Matter in Virgin and Arable Soils: A Scoping Review. Agronomy 2024, 14, 1003. https://doi.org/10.3390/agronomy14051003
metadata.lang: en_GB
metadata.name: dc.identifier.issn
metadata.value: 2073-4395
metadata.lang: -
metadata.name: dc.identifier.uri
metadata.value: http://hdl.handle.net/11701/45412
metadata.lang: -
metadata.name: dc.description.abstract
metadata.value: 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.
metadata.lang: en_GB
metadata.name: dc.description.sponsorship
metadata.value: The reporting study by E. Lodygin was carried out within the scope of the research work of the Institute of Biology (No. 122040600023-8); E. Abakumov acknowledges Saint-Petersburg State University for a research project ID 93882802.
metadata.lang: en_GB
metadata.name: dc.language.iso
metadata.value: en
metadata.lang: en_GB
metadata.name: dc.publisher
metadata.value: Agronomy
metadata.lang: en_GB
metadata.name: dc.relation.ispartofseries
metadata.value: ;1003
metadata.lang: -
metadata.name: dc.subject
metadata.value: humic substances
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: organic fertilizers
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: NMR spectroscopy
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: EPR spectroscopy
metadata.lang: en_GB
metadata.name: dc.title
metadata.value: The Use of Spectroscopic Methods to Study Organic Matter in Virgin and Arable Soils: A Scoping Review
metadata.lang: en_GB
metadata.name: dc.type
metadata.value: Article
metadata.lang: en_GB
resources.filename: agronomy-14-01003-v2.pdf
resources.url: https://dspace.spbu.ru/bitstream/11701/45412/1/agronomy-14-01003-v2.pdf
resources.format: Adobe PDF
resources.size: 3,85 MB