Mineralogical properties of andisols of the Kitakami mountain range, Northeastern Japan

Adjadeh, T. A.; Inoue, Katsuhiro

doi:10.1080/00380768.1999.10409327

Cited by 2 publications

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References 25 publications

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“…On the contrary, KCl‐extractable Al content of the Typic Melanudands and Fulvudands ranged from as low as 0.1 cmol (+) kg −1 to as high as 13.4 cmol (+) kg −1 (Table 2). Furthermore, the genesis of Melanudands and Fulvudands has been linked to the influence of grass and forest vegetation, respectively, (Shoji and Otowa, 1988), whereas the provenance of KCl‐extractable Al in Andisols has been attributed to the presence of crystalline clay minerals (Smith, 1978; Saigusa et al, 1980; Wada, 1985; Inoue, 1986; Adjadeh and Inoue, 1999b). These two phenomena (i.e., the influence of grassland/forest vegetation on the genesis of Melanudands/Fulvudands and the presence of crystalline clay minerals in these soils) are noninteractive (Adjadeh and Inoue, 1999c) and as a result cannot justify classifying Alic Melanudands/Fulvudands as Typic (as the 10th edition of the Keys to Soil Taxonomy indicates).…”

Section: Resultsmentioning

confidence: 99%

“…(Note: Water retention of the soils at 1500 kPa was not determined. Nevertheless, none of the soils is likely to classify in the HydriC subgroup based on the environment in which they occur [Adjadeh and Inoue, 1999c;Shoji et aI., 1985] (Smith, 1978;Saigusa et aI., 1980;Wada, 1985;Inoue, 1986;Adjadeh and Inoue, 1999b Staff, 2006). Pedon 13 at Yamaoohata, provisionally classified as an Alic Pachic Fulvudand by Adjadeh and Inoue (1999c) under the seventh edition of the Keys to Soil Taxonomy (Soil Survey Staff, 1997), is now a Pachic Fulvudand (Soil Survey Staff, 2006).…”

Section: Classification At the Subgroup Levelmentioning

confidence: 99%

“…Adjadeh and Inoue (1999a,b,c) studied the pedogenesis of Andisols of the Kitakami Mountain range, northeastern Japan, and classified some of the soils, especially those located at the southern part of the mountain, as Alic Melanudands, Alic Fulvudands, Alic Hapludands and Alic Pachic Melanudands. They even proposed a new subgroup, Alic Pachic Fulvudands, because one of the pedons located at Yamaoohata (Pedon 13) could only be classified by this name.…”

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Disappearance of Alic Melanudands and Alic Fulvudands in the Kitakami Mountains, Northeastern Japan

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Andisols of the southern part of the Kitakami mountain range are strongly influenced by long‐range eolian dust deposited during the Quaternary. These Andisols are enriched with crystalline clay minerals, KCl‐extractable Al and organic C. Under the seventh edition of Keys to Soil Taxonomy, they were classified variously as Alic Melanudands, Alic Fulvudands, Alic Hapludands, or Alic Pachic Melanudands. However, with the publication of the eighth edition of Keys to Soil Taxonomy, all the Alic subgroups of Melanudands and Fulvudands were removed whereas those subgroups of Hapludands were retained. The change was carried forward into the second edition of Soil Taxonomy (Soil Survey Staff, 1999) and the latest Keys to Soil Taxonomy (i.e., 10th edition). We present some selected chemical properties and the andic soil properties of 13 pedons of the Kitakami Mountain range to expose the inconsistency in the classification of Alic Andisols. The amount of KCl‐extractable Al in the Melanudands and Fulvudands ranged from 0.1 to 13.4 cmol(+) kg−1. Those Melanudands and Fulvudands that satisfied the Alic subgroup requirements because they contained >2.0 cmol(+) kg−1 KCl‐extractable Al in the prescribed horizons are currently classified as Typic Melanudands or Typic Fulvudands. On the contrary, the Hapludands that previously met the Alic subgroup requirements in the earlier editions of Soil Taxonomy are still classified as Alic Hapludands. We also emphasize the need to create the Alic Pachic Fulvudands subgroups.

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Disappearance of Alic Melanudands and Alic Fulvudands in the Kitakami Mountains, Northeastern Japan

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Andisols of the Kitakami mountain range, Northeastern Japan: Their characterization and classification

Adjadeh

Inoue

1999

Soil Science and Plant Nutrition

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Andisols of the Kitakami mountain range were derived from a mixture of tephras and long range eolian dust deposited during the Quaternary. Thus, the relative proportions of the components of the mixture determined the unique properties of the soils. Soils of the northern and central parts of the mountain range were derived mainly from tephras and had been classified, generally, as Typic Kuroboku soils by the Group of Japanese Pedologists. Soils of the southern part showed a strong influence of long range eolian dust and had been classified, generally, as Typic Para Kuroboku soils. We studied the Andic soil properties of 35 pedons covering the mountain range in order to classify them under the Andisols order. All the soils showed a bulk density (BD) < 0.90 Mg m-3 and Pretention >85% in the Andisol diagnostic horizon. The soils of the northern and central parts of the mountain range had a pH(H 2 0) range of 5.1-6.7 and acid oxalate-extractable Al plus half Fe (Alo+0.5Feo) level was >2%. They were therefore classified under criterion one of the Andic soils requirements. The soils of the southern part of the mountain range had a pH(H 2 0) range of 4.3-5_7 and the majority of them contained <2.0% of Al o +0.5Fe o . The pedons with Alo +0.5Fe o level < 2.0%, however, had a sufficient amount of volcanic glass in their sand fraction to satisfy the criterion two of the Andic soil requirements. The soils of the northern part contained moderate amounts of organic C and were mainly Typic Hapludands. The soils of the southern part contained large amounts of KCI-extractable Al and organic C and also showed a wider spectrum of Andisols. However, Alic and Typic Fulvudands, and Alic and Typic Melanudands tended to occur in higher frequencies. The classification of the pedons of the central part bridged that of the pedons of the northern and the southern parts.Key Words: Andisols, Kitakami mountain range, long-range eolian dust, tephra, USDA Soil Taxonomy.Soils derived from tephras and others with similar properties, perhaps more than any other group of soils, have been subjected to continuous changes in their terminology. Apart from numerous local names, these soils have been classified variously; Ando soils (Thorp and Smith 1949), Andosols (FAa/UNESCO 1974), Andepts (Soil Survey Staff 1975) and, presently, Andisols (Soil Survey Staff 1990. The extent of the changes is a measure of the advances in the knowledge of their pedogenesis. Although these soils have originally been associated solely with tephra, with the creation of the Andisols order and its subsequent revisions, Andisols derived from parent materials other than tephra have been reported. The reports cover tephric nonallophanic Andisols (Baham and Simonson 1985;Hunter et al. 1987;Shoji and Otowa 1988), nontephric nonallophanic Andisols (Garcfa-Rodeja et al. 1987;Clayden 1989;Leamy et al. 1990;Baumler and Zech 1994) and non-tephric allophanic Andisols (Whitton et al. 1985). Thus, the central concept of Andisols has expanded from soils dominated by allophane, imogolite...

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Mineralogical properties of andisols of the Kitakami mountain range, Northeastern Japan

Cited by 2 publications

References 25 publications

Disappearance of Alic Melanudands and Alic Fulvudands in the Kitakami Mountains, Northeastern Japan

Disappearance of Alic Melanudands and Alic Fulvudands in the Kitakami Mountains, Northeastern Japan

Andisols of the Kitakami mountain range, Northeastern Japan: Their characterization and classification

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