Physical properties of the soils of Georgia

Jorbenadze, Leo T.; Urushadze, T. F.; Kunchulia, Ilia

doi:10.1016/j.aasci.2017.05.008

Cited by 4 publications

(3 citation statements)

References 2 publications

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“…Clay soils turn out to be very susceptible to these wetting and drying cycles. In the same way, Jorbenadze et al (2017), when studying the physical properties of the soils of Georgia, found that Vertisols showed an increase in soil bulk density with depth. This caused a decrease in the maximum capacity of the soil to store water when all pore volumes are full of water (saturation water); of the amount of water contained in the soil previously saturated after the excess has been drained by the gravity force action, and the percolation speed has decreased considerably (water at field capacity).…”

Section: Resultsmentioning

confidence: 79%

Hydropedological behavior of a chromic vertisol under different plant covers

Gómez

2021

rcia

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Vertisols present edaphic limiting factors primarily of a physical nature. The study of their hydropedology, supported by multivariate techniques, is of vital importance. The work was developed with the objective of determining, through multivariate analysis, the hydropedological behavior of a Chromic Vertisol under different plant covers. In areas under natural grass, sugarcane, and secondary forest, belonging to the Holguín Sugarcane Provincial Research Station, three random points were chosen in each. Soil penetration resistance, soil bulk density, gravimetric moisture, and volumetric moisture at depths of 0-10, 10-20 and 20-30cm were determined. A Principal Component Analysis and Canonical Correlations were performed using Statistica 7 and Statgraphics Plus XV.II. The first two components made the greatest contribution to the variance, with 83.09%. The greatest contributions (1st component) were given by moisture at all depths and by soil compaction at a depth of 20-30 cm. The 2nd component was influenced by soil compaction in the 0-10 and 10-20cm layers. There was a contrast between the variables that characterize the solid phase with which they describe the liquid phase of the soil. There was a correlation between soil moisture and compaction. The first two pairs of canonical variables showed a strong linear correlation and regularly dispersed along the central values of the model, with a remarkable grouping by depths.

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Section: Resultsmentioning

confidence: 79%

Hydropedological behavior of a chromic vertisol under different plant covers

Gómez

2021

rcia

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“…As reported in the work by Sáňka and Materna (2004), the average values of the bulk density found in the topsoil during Basal monitoring of agricultural soils (BMAS) in the Czech Republic range from 1.17 to 1.45 g/cm 3 (Sáňka & Materna 2004). Jorbenadze et al (2017) listed the values of the bulk density in the topsoil from Georgia in the range of 0.91 g/cm 3 (Dystric Gleysols, Eutric Gleysols and Histosols) to 1.43 g/cm 3 (Stagnic Acrisols and Ferric Acrisols). Sáňka and Materna (2004) listed the average values of the total soil porosity found in the topsoil during the BMAS in the range of 45.25 to 55.25%.…”

Section: Resultsmentioning

confidence: 99%

Comparison of the physical properties of soils belonging to different reference soil groups

Vopravil¹,

Formánek²,

Khel³

2020

Soil Water Res.

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Soil properties can be influenced by long-term agricultural management practices as described in pedological literature. In this study, selected physical properties (particle density and bulk density, total porosity, maximum capillary water capacity, minimum air capacity, field capacity, permanent wilting point and available water capacity) of topsoils from different reference soil groups (Cambisols, Luvisols, Fluvisols, Chernozems and Phaeozems, Leptosols, Stagnosols and Gleysols) were sampled and analysed in the years 2016–2017. The topsoil samples were taken from points of so-called S (specific) soil pits to be sampled from the General Soil Survey of Agricultural Soils (GSSAS) which was accomplished in the years 1961–1970. In addition, some of the properties were also compared with those measured during the GSSAS. Recognising the properties, only the particle density, the maximum capillary water capacity, the permanent wilting point and the available water capacity of the topsoil of the individual soil groups were statistically significantly (P < 0.05) different. A comparison of the physical properties with those analysed after more than 40 years was performed, the bulk density increased and the total porosity decreased in the topsoil of the major part of the studied soil groups.

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“…The nomenclature of soils in its legend was still based on the national classification (Urushadze 1997), including the soil resources of the world, according to the available basic data (Urushadze et al 2016). Before and since then, a few researches were conducted using this system (Lezhava 1997;Urushadze et al 2011;Urushadze et al , 2016Jorbenadze et al 2017;Kunchulia 2017;Lortkipanidze et al 2018). The newest edition of the WRB was translated and published in early 2017 in the Georgian language (Kvrivishvili et al 2017).…”

Section: Introductionmentioning

confidence: 99%

Classification of shallow and skeletal mountain soils with the WRB system on the example of the Trialeti Range, Lesser Caucasus (Georgia)

Kunchulia

Kakhadze

Tsereteli

et al. 2018

Bulletin of Geography. Physical Geography Series

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The aim of the paper is to evaluate the usefulness of the World Reference Base for Soil Resources (WRB) 2015 to classify shallow soils on mountains of the Trialeti Range, Lesser Caucasus, Georgia. The article also presents the evolution of the concept of Leptosols and of the qualifier “Leptic” and the diagnostic property of continuous rock. It also provides approaches to defining keys in the reference soil group (RSG) of Leptosols and identifying principal and supplementary qualifiers in WRB 2015 on example of soils of the Trialeti Range. The article gives few examples of classification for such shallow and stony soils with different set of qualifiers. Most of them fulfil the criteria of Leptosols and Regosols. These soils occur on the mountain range together with other RSGs (e.g. Pheozems). The authors propose to add the qualifier Technolithic to the list of Principal/Supplementary qualifiers of Leptosols.

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Physical properties of the soils of Georgia

Cited by 4 publications

References 2 publications

Hydropedological behavior of a chromic vertisol under different plant covers

Hydropedological behavior of a chromic vertisol under different plant covers

Comparison of the physical properties of soils belonging to different reference soil groups

Classification of shallow and skeletal mountain soils with the WRB system on the example of the Trialeti Range, Lesser Caucasus (Georgia)

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