The triad approach to ecological assessment of urban soils

Терехова, В. А.; Pukalchik, Mariia; Yakovlev, A. S.

doi:10.1134/s1064229314090129

Cited by 19 publications

(19 citation statements)

References 7 publications

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“…The values of environmental risk indices obtained by the triad method provide evidence on the influence of humic preparations at various biological levels, from organ ism to population or community. The Chemical Risk Index, Ecotoxicological Risk Index, and Ecological Risk Index (ChemRI, EtoxRI, and EcoRI) are cal culated in three stages, i.e., the comparison of data obtained with the background data for every index; the choice of transitional function depending on the deviation from the background values for each index; calculation of integral indices (ChemRI, EtoxRI, and EcoRI)) [26,31].…”

Section: Methodsmentioning

confidence: 99%

“…There is a history of applying detoxi cation coefficient as an integral index for assessing the remediation activity of humates [6,7]. However, we consider the methodology applied at the interdiscipli nary level, i.e., the triad method, to be the most objec tive and versatile, as it integrates a triad of ecological data, i.e., chemical, biological and toxicological indices [26,31].…”

Section: Introductionmentioning

confidence: 99%

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Triad method for assessing the remediation effect of humic preparations on urbanozems

et al. 2015

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The data on the pollutant content, ecological toxicity, and structural and functional specifics of soil microbial communities in urbanozem sampled in the city of Kirov were used to describe the remediation effect of humic substances (lignohumate and nanomagnetitohumate). The integral index of environmental risk on contaminated and background soil sites was calculated using the triad method. Based on varying Chemical Risk Index, Ecotoxicological Risk Index, and Ecological Risk Index, this method proved that humic substances are able to reduce ecological toxicity and transform the ecophysiological indices of biota in urban soils. The most vivid effect of humic products has been revealed on introduction of 0.0025 and 0.01% mass. The biological activity of nanomagnetitohumate and lignohumate, rather than their ability to bind tox icants, is apparently the principal factor controlling their remediating effect.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Triad method for assessing the remediation effect of humic preparations on urbanozems

et al. 2015

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“…According to Dagnino A. [21][22], equations used to calculate the indexes of soil status by the Triad approach are presented in Table 1.…”

Section: Estimating Pollution Levelmentioning

confidence: 99%

A Comparison of Various Ecological Indexes for Environmental Assessment of Vulnerable Mountain Ecosystems

Totubaeva¹,

Tokpaeva²,

Kojobaev³

et al. 2020

Pol. J. Environ. Stud.

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“…The direction of pedogenesis in urban environment also depends on characteristics of soil forming material and climate (Aleksandrovskiy et al 2012). Biological properties of urban soils can serve as indicators of their ecosystem function (Piotrowska-Dlugosz and Charzyńsky 2015), with the microbial diversity and activity being among the most meaningful biological characteristic of soils (Schindelbeck et al 2008;Terekhova et al 2014;Rozanova et al 2016). Microbial properties (including substrate-induced and basal respiration) are influenced by specific chemical properties in dif-ferent functional zones of city (Ivashchenko et al 2019).…”

Section: Introductionmentioning

confidence: 99%

Microbiological indicators and heavy metal concentration in ecological assessment of urban soils of Saint Petersburg, Russia

Matinian¹,

Gusareva²,

Бахматова³

et al. 2020

GES

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This paper aimed to characterize urbostratozems (Urbic Technosol, WRB) of Saint Petersburg located in industrial (“Electrodepo” railway station) and residential (region Polish Garden) zones. These soils were also compared with background (natural) soddy podzol soil (Umbric Albic Gleic Podzol, WRB) sampled in recreational zone (suburban park “Oranienbaum”). Soil samples were collected from soil horizons for chemical analysis and from top of soils for microbialogical analysis in June of 2012. Chemical properties (pH, total organic carbon, mobile forms of K and P) and content of heavy metals (Pb, Cu, Zn, Ni) in soils were determined. Culturable forms of microorganisms (bacteria and fungi) were studied. Assessment of the enzymatic activity of the soil was carried out by culturing of microorganisms-producers of protease, amylase, cellulase and lipase on special media. Biotesting using cress (Lepidium sativum L.) seeds had been carried out for assessment of soil phytotoxicity. It was found that chemical properties of urban and natural soils differ greatly. Heavy metal pollution was evident in both urban soils, but maximum concentrations of heavy metals were found in the soil of the industrial zone. Phytotoxocity had been also most pronouncend in the soil of the industrial zone. The natural soil exhibited significantly higher respiration activity than urbostratozems. The greatest difference in the structure of the bacterial and fungal communities was observed between the natural soil of the recreational zone and the urbostratozem of the industrial zone. Algae had been present in the urban soils of the residential zone that was not observed in the natural podzol. The minimum number of producers of all enzymes, except for cellulase, was observed in the soddy podzol in the recreational zone. The maximum number of protease and amylase producers was found in the soil of the industrial zone. Lipolytic activity was almost the same in all samples. It was found that more sensitive biological methods are needed for environmental assessment of urban soils. The results of the article can be used by soil scientists and environmental engineers for a comprehensive environmental assessment of the condition of urban soils and for creating new urban green spaces.

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The triad approach to ecological assessment of urban soils

Cited by 19 publications

References 7 publications

Triad method for assessing the remediation effect of humic preparations on urbanozems

Triad method for assessing the remediation effect of humic preparations on urbanozems

A Comparison of Various Ecological Indexes for Environmental Assessment of Vulnerable Mountain Ecosystems

Microbiological indicators and heavy metal concentration in ecological assessment of urban soils of Saint Petersburg, Russia

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