Prospects and problems of using the methods of geochemistry of stable carbon isotopes in soil studies

Morgun, E. G.; Kovda, I. V.; Ryskov, Ya. G.; Oleinik, S. A.

doi:10.1134/s1064229308030046

Cited by 24 publications

(6 citation statements)

References 32 publications

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“…The obtained data are consistent with the scientific literature data. Thus, in articles [26,27] it is noted that the isotopic composition of soils depends on its composition: saline soils, as a rule, are characterized by high content of carbon isotope in contrast to the other types of soils. Data on the isotopic composition of carbon are consistent with the data of articles [28,29], which show the "isotopic signature" of grass vegetation from the pastures in the muscle tissue of raw livestock meat with a δ13C value not exceeding the level of -24.0‰.…”

Section: Resultsmentioning

confidence: 99%

Analysis of the substances migration within the trophic chain “soil — plant — raw meat materials”

Bazhenova,

Egorova,

Tcybenov

et al. 2024

Teor. prakt. pererab. mâsa (Print)

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The trophic chain, which manifests the correlation at nutritional level between various macro- and microorganisms, is an important factor of the ecosystem; it can show the migration of various substances within the chain “soil — water — plant — animals”. The trophic chain in Borgoy depression area was studied due to the profound correlation between the compositional characteristics of the soil and pronounced organoleptic features of meat of the sheep that feed on grass in this area. For the experiments, control and experimental samples of soil, water, plants and mutton meat were examined. The samples taken near the saline lake within the Borgoy depression on the west of Beloozersk village served as an experimental sample. The samples taken 30 km from the salt lake near Petropavlovsk village in the Republic of Buryatia served as control sample. Experiments have shown that the soil of the Borgoy depression is a saline soil, with a depth of the salt horizon of 0–30 cm, and the salt belongs to chloride-sulfate-soda type of salinity. It is noted that the saline soil is characterized by a much higher content of carbonates, chlorides and cations of sodium, potassium and magnesium. Correlation was found between the isotopic composition in soil, vegetation and the raw meat materials. More profound certain organoleptic features of Borgoy mutton were noted. It’s highly probable that this fact is associated with the peculiarities of the mineral, chemical, and amino acid compositions of meat of the livestock that lives in the pastures of the Borgoy depression, characterized by saline soils. Despite the increased content of heavy metals such as lead and copper in the soil, data on sheep muscle tissue showed that all values of toxic elements content are within the permissible concentration range. The transfer of heavy metals from the soil to the aboveground part of plants is hindered by the underground root part, which serves as barrier.

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Section: Resultsmentioning

confidence: 99%

Analysis of the substances migration within the trophic chain “soil — plant — raw meat materials”

Bazhenova,

Egorova,

Tcybenov

et al. 2024

Teor. prakt. pererab. mâsa (Print)

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“…One of the most informative approaches to dynamics of organic detritus and nutrient cycling in soil has been via food web analysis (Coleman 2011). Stable isotope ratios are used as a way of reconstructing environmental conditions and to indicate the process occurring within the soil (Morgun et al 2008); they have been used widely as a tool to assess feeding ecology of invertebrates. Stable isotope studies of soil invertebrates have ranged from the investigation of major taxonomic groupings within the soil food web (Neilson et al 1998), to individual species within one order (Schneider et al 2004).…”

Section: S Incementioning

confidence: 99%

“…Stable isotope ratios are used as a way of reconstructing environmental conditions and to indicate the process occurring within the soil (Morgun et al. ); they have been used widely as a tool to assess feeding ecology of invertebrates. Stable isotope studies of soil invertebrates have ranged from the investigation of major taxonomic groupings within the soil food web (Neilson et al.…”

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confidence: 99%

Using Stable Isotopes to Differentiate Trophic Feeding Channels within Soil Food Webs

Crotty

Adl

Blackshaw

et al. 2012

J Eukaryotic Microbiology

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The soil is probably the most diverse habitat there is, with organisms ranging in sizes from less than 1 μm to several metres in length. However, it is increasingly evident that we know little about the interactions occurring between these organisms, the functions that they perform as individual species, or together within their different feeding guilds. These interactions between groups of organisms and physical and chemical processes shape the soil as a habitat and influence the nature of the soil food web with consequences for the above-ground vegetation and food web. Protists are known as one of the most abundant groups of bacterivores within the soil; however, they are also consumers of a number of other food sources. Even though they are responsible for a large proportion of the mineralisation of bacterial biomass and have a large impact on the C and N cycles within the soil they are regularly overlooked when investigating the complete soil food web. Recently, stable isotopes have been used to determine trophic interactions and here we describe how this technique has been used to highlight linkages between protists and the soil food web.

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“…For example, C/N and δ 13 C ratios are widely used to examine OM sources, mixing, and evolution in sediments (e.g., Meyers 1997) and to identify nutrient sources and photosynthetic pathways in plants (e.g., C3 and C4 plant differentiation;Meyers 2003;Sharp 2007). In soils, these parameters provide the identifications of carbon reservoirs and dynamics in the soil-plant systems (e.g., Harris et al 2001) and have been successfully used to identify lithogenic and pedogenic carbonates (Nordt et al 1998), as well as the C3 vs. C4 contributions to soil organic matter (SOM), that in turn give insights on climatic conditions (Morgun et al 2008). In agronomic studies, these tracers also Responsible editor: Philippe Garrigues Electronic supplementary material The online version of this article (doi:10.1007/s11356-015-4503-x) contains supplementary material, which is available to authorized users.…”

Section: Introductionmentioning

confidence: 99%

Thermally based isotopic speciation of carbon in complex matrices: a tool for environmental investigation

Natali

2015

Environ Sci Pollut Res

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Elemental and isotopic analyses of carbon in environmental matrices usually highlight multiple pools of different composition and (13)C/(12)C (δ(13)C‰) isotopic ratio. Interpretation necessarily needs the characterization of the diverse end-members that usually are constituted by inorganic and organic components. In this view, we developed a routine protocol based on coupling of elemental and isotopic analyses that is able to discriminate the inorganic (IC) and organic (OC) contributions to the total carbon (TC) content. The procedure is only based on thermal destabilization of the different carbon pools and has been successfully applied on different environmental matrices (rocks, soils, and biological samples) with a mean C elemental and isotopic recoveries of 99.5% (SD = 1.3%) and 0.2‰ (SD = 0.2‰), respectively. The thermally based speciation (TBS) leads us to define precise isotopic end-members, which are unaffected by any chemical treatment of the sample, to be used for accurate mass balance calculation that represents a powerful tool to quantify the distinct carbon pools. The paper critically evaluates the method explaining the potentials and the current limits of the proposed analytical protocol.

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Prospects and problems of using the methods of geochemistry of stable carbon isotopes in soil studies

Cited by 24 publications

References 32 publications

Analysis of the substances migration within the trophic chain “soil — plant — raw meat materials”

Analysis of the substances migration within the trophic chain “soil — plant — raw meat materials”

Using Stable Isotopes to Differentiate Trophic Feeding Channels within Soil Food Webs

Thermally based isotopic speciation of carbon in complex matrices: a tool for environmental investigation

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