Magnetic susceptibility of soils along a lithotoposequence in southeast Iran

Sarmast, Masoomeh; Farpoor, Mohammad Hady; Esfandiarpour-Boroujeni, I.

doi:10.1016/j.catena.2017.04.019

Cited by 36 publications

(15 citation statements)

References 37 publications

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“…In its turn, clay content present median values of 358 and 273 g kg − 1 for Cx and Cc, respectively. The geomorphological compartments have indirect influence on the values of MS (Sarmast et al, 2017) and clay content, since they influence the transport of particles in the directions horizontal, via runoff (Matias et al, 2014), and vertical, by lessivage (Hanesch and Scholger, 2005). Allied to this, the geomorphological compartments also change the water dynamics in the system, altering processes of oxidation and reduction responsible by minerals neoformation with higher or lower magnetic potential (Jong et al, 2000).…”

Section: Resultsmentioning

confidence: 99%

“…For tropical soils, soil mineralogy and clay content have great relationship with the taxonomic classes of soil (Costa et al, 1999) and directly influence the definition of mapping units (Marques Jr. et al, 2014;Siqueira et al, 2015). The magnetic susceptibility (MS) is covariative of factors and processes of soil formation, in addition to be closely related to its mineralogy (Camargo et al, 2014;Sarmast et al, 2017). The increasing use of MS is due to the simplicity and low cost in its determination (Dearing, 1994) and high relation with soil physical, chemical and mineralogical attributes (Siqueira et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

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Mapping units based on spatial uncertainty of magnetic susceptibility and clay content

Teixeira

Marques

Siqueira

et al. 2018

CATENA

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This study aimed to use spatial uncertainty of magnetic susceptibility (MS) and clay content to improve soilmapping units. In an experimental area of 870 ha, a regular sampling grid containing 371 points was set, in which MS and clay content were assessed at a depth range of 0-0.25 m. Using a digital elevation model and field observations, a 4440-m transect was established on the study area from hilltop to the foothill, toward the gentlest slope. Standard deviation maps based on 200 realizations of the sequential gaussian simulation measured spatial estimate uncertainties. To limit transition zones along the transect, uncertainty isolines representative of the transition between soil-mapping units were selected. Both attributes presented peaks of uncertainties near the change of mapping units, previously known. Uncertainty zones, previously delineated, ranged from 45 to 210 m and from 60 to 170 m, for MS and clay content, respectively. However, after extrapolating the uncertainties to the side of the transect, amplitude changes of the uncertainty zones were observed, especially in the transition regions between landscape shape and geology. Delineation of mapping units, which incorporated the uncertainties of MS and clay content, was similar. However, due to lower cost and promptness, MS becomes the most feasible alternative. Knowing spatial uncertainties enables readjusting limits in maps of soil-mapping units and may support identification of most favorable regions for determining modal pedon representative of each unit.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Mapping units based on spatial uncertainty of magnetic susceptibility and clay content

Teixeira

Marques

Siqueira

et al. 2018

CATENA

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“…Sensor alat tersebut menampilkan nilai volume suseptibilitas magnetik yang kemudian akan dihitung untuk mendapatkan nilai suseptibilitas magnetik dengan membaginya dengan volume sampel, yaitu χ = κ/ρ. Uji suseptibilitas magnetik dilakukan dengan frekuensi rendah 0,46 Hz dan frekuensi tinggi 4,6 Hz [17], [18]. Pengukuran dengan frekuensi berbeda tersebut nantinya akan dimanfaatkan untuk menghitung nilai frekuensi dependen [9].…”

Section: Karaterisasi Sampelunclassified

Suseptibilitas Magnetik dan Kelimpahan Mineral Magnetik pada Tanah Sawah di Lawang dan Soekarno-Hatta, Malang

Daryanti

Zulaikah

Mufti

et al. 2018

JPSE

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Paddy soil is a typical anthropogenic soils that has an important role throughout the world. Along with the development in urban area of Soekarno-Hatta Malang, paddy soils become switch function so many fields close to human activities. Efforts in understanding such environmental circumstances can be done by studying the properties of magnetic minerals contained in agricultural land or plantations. Magnetic properties are often used as indicators of the state and development of soils, especially to understand the magnetic and nonmagnetic properties of paddy soils. To fulfill the requirement, research of magnetic mineral properties of paddy soils in Lawang and Soekarno-Hatta, Malang. The result of this research is χlf 0,885-7,648 × (10-6 m 3 kg-1). The elements that dominated on paddy soil such as Fe, Si, Al, Ca with the lowest value is at Ca of 4,5% and which is the Fe element of 45,52%.

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“…Moreover, as mentioned earlier, the trajectory of the eroded sediments of a gully throughout the natural drainage network can be considerable (hundreds of meters). Sediments can be deposited and recirculate throughout different types of soil – for example, different mineralogy and associated magnetic susceptibility (Sarmast et al, 2017). In addition, the soil moisture content of the soil, especially of higher strata, is very variable in time, even when considering short periods.…”

Section: Introductionmentioning

confidence: 99%

Assessment of magnetite as a magnetic tracer for sediments in the study of ephemeral gully erosion: Conditioning factors of magnetic susceptibility

Zubieta

Larrasoaña

Aldaz

et al. 2021

Earth Surf Processes Landf

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Magnetic susceptibility of soils along a lithotoposequence in southeast Iran

Cited by 36 publications

References 37 publications

Mapping units based on spatial uncertainty of magnetic susceptibility and clay content

Mapping units based on spatial uncertainty of magnetic susceptibility and clay content

Suseptibilitas Magnetik dan Kelimpahan Mineral Magnetik pada Tanah Sawah di Lawang dan Soekarno-Hatta, Malang

Assessment of magnetite as a magnetic tracer for sediments in the study of ephemeral gully erosion: Conditioning factors of magnetic susceptibility

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