Characteristics and classification of an unirrigated anthropogenic-alluvial soil found in the Kumamoto Plain

Kanno, Ichiro; Honjo, Yoshio; Arimura, Shizuoki; Kuwano, Yukio

doi:10.1080/00380768.1965.10431147

Cited by 3 publications

(1 citation statement)

References 6 publications

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“…Such a lithogenetic approach, which is treating alluvial soils as a one unit without taking into account pedogenic transformations, can be found in many publications on various study aspects, e.g. : clay minerals (Cieśla et al, 1988), water retention (Hewelke et al, 2018), soil contamination (Cappuyns and Swennen, 2007), anthropogenic changes (Kanno et al, 1965), identification of geotechnical parameters (Yilmaz and Karacan, 1997;Młynarek et al, 2012). One of the reasons for this is because in many older versions of classification systems -including international ones -most of the pedons developed from alluvial materials were put to the one main unit.…”

Section: Introductionmentioning

confidence: 99%

Classification of alluvial soils - problematic issues on the examples from South Baltic Lakelands, north Poland

Świtoniak¹,

Michalski²,

Markiewicz³

2022

Soil Sci. Ann.

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Alluvial soils constitute a group of soils that is very diverse in terms of their genesis and what is the effect of it -most of properties, e.g. organic carbon content, features connected with ground or stagnating water, development of B horizons or texture. It is also refl ected in their systematic position. Currently, the Polish Soil Classifi cation (PSC, 2019) distinguishes as many as 3 types of soils developed from fl uvic materials: ordinary, chernozemic and brown alluvial soils. Some of soils with alluvial sediments strongly infl uenced by water but without diagnostic horizons can be also classifi ed as gleysols or stagnosols. The aim of the article was to check the criteria and to verify completeness of units in the rank of types and subtypes for distinguishing alluvial soils in latest version of Polish Soil Classifi cation (PSC, 2019). The study was carried out in area covered by Vistulian glaciation in Northern Poland. 87 profi les to the maximum depth of 210 cm were studied. 18 pedons belong to chernozemic alluvial soils, the most common type (48) was classifi ed as brown alluvial soils, ordinary alluvial soils occurred 11 times. Moreover, 7 pedons with fl uvic material were classifi ed as gleysols. Other 3 soils represented organic and colluvial soils. Based on the conducted research some changes in Polish Soil Classifi cation have been proposed. They are regarding the minimum thickness of fl uvic materials for classifying alluvial soils, the revision of the humus subtype, the introduction of the type of gleyzemic alluvial soils in gleyzemic order or subtype of alluvial soils in type of gleysols and subtype of waterlogged soils in chernozemic alluvial soil type. The article also addresses important issues of the origin and classifi cation of B horizons in the studied soils, and confi rmed signifi cant usefulness of soil-agricultural maps in determining the places of occurrence of alluvial soils.

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Section: Introductionmentioning

confidence: 99%

Classification of alluvial soils - problematic issues on the examples from South Baltic Lakelands, north Poland

Świtoniak¹,

Michalski²,

Markiewicz³

2022

Soil Sci. Ann.

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So-called 14 Å clay minerals in some Ando soils

Kawasaki

Aomine

1966

Soil Science and Plant Nutrition

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The Over-Prediction of Seismically Induced Soil Liquefaction during the 2016 Kumamoto, Japan Earthquake Sequence

et al. 2022

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Following the M7.0 strike-slip earthquake near Kumamoto, Japan, in April of 2016, most geotechnical engineering experts believed that there would be significant soil liquefaction and liquefaction-induced infrastructure damage observed in the densely populated city of Kumamoto during the post-event engineering reconnaissance. This belief was driven by several factors including the young geologic environment, alluvially deposited soils, a predominance of loose sandy soils documented in publicly available boring logs throughout the region, and the high intensity ground motions observed from the earthquake. To the surprise of many of the researchers, soil liquefaction occurred both less frequently and less severely than expected. This paper summarizes findings from our field, laboratory, and simplified analytical studies common to engineering practice to assess the lower occurrence of liquefaction. Measured in situ SPT and CPT resistance values were evaluated with current liquefaction triggering procedures. Minimally disturbed samples were subjected to cyclic triaxial testing. Furthermore, an extensive literature review on Kumamoto volcanic soils was performed. Our findings suggest that current liquefaction triggering procedures over-predict liquefaction frequency and effects in alluvially deposited volcanic soils. Volcanic soils were found to possess properties of soil crushability, high fines content, moderate plasticity, and unanticipated organic constituents. Cyclic triaxial tests confirm the high liquefaction resistance of these soils. Moving forward, geotechnical engineers should holistically consider the soil’s mineralogy and geology before relying solely on simplified liquefaction triggering procedures when evaluating volcanic soils for liquefaction.

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Characteristics and classification of an unirrigated anthropogenic-alluvial soil found in the Kumamoto Plain

Cited by 3 publications

References 6 publications

Classification of alluvial soils - problematic issues on the examples from South Baltic Lakelands, north Poland

Classification of alluvial soils - problematic issues on the examples from South Baltic Lakelands, north Poland

So-called 14 Å clay minerals in some Ando soils

The Over-Prediction of Seismically Induced Soil Liquefaction during the 2016 Kumamoto, Japan Earthquake Sequence

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