Results 211 to 220 of about 8,677,596 (242)
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CATENA, 2012
Abstract An important criterion used to determine andic properties in World Reference Base is Al + ½ Fe content (by ammonium oxalate) equal to 2% or more. Experiments have shown however that the acid–ammonium oxalate-extractable Fe (Feox) value often does not only express the amorphous or short-range-order (SRO) Fe-constituents, typical for andic ...
C. Algoe +3 more
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Abstract An important criterion used to determine andic properties in World Reference Base is Al + ½ Fe content (by ammonium oxalate) equal to 2% or more. Experiments have shown however that the acid–ammonium oxalate-extractable Fe (Feox) value often does not only express the amorphous or short-range-order (SRO) Fe-constituents, typical for andic ...
C. Algoe +3 more
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Andic Soil Properties of Spodosols in Nonvolcanic Materials of Southeast Alaska
Soil Science Society of America Journal, 1993Abstract Andic properties are typical of soils in volcanic materials, including those in southeast Alaska. Nonvolcanic materials, however, predominate in southeast Alaska, yet andic properties are common in Spodosols throughout the area.
E. B. Alexander, S. Shoji, R. West
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ANDIC SOILS OF THE INLAND PACIFIC NORTHWEST, USA: PROPERTIES AND ECOLOGICAL SIGNIFICANCE
Soil Science, 2005Holocene tephra from the cataclysmic eruption of Mount Mazama in southwestern Oregon is an important component of many soils east of Cascade Mountains in the Pacific Northwest region. This article examines ecologically important properties of these tephra-influenced soils.
P. A. McDaniel +6 more
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On typologically relevant properties of Andic verbal grammatical systems
Voprosy JazykoznanijaDespite the fact that Andic languages ( East Caucasian) are widely recognised as agglutinating, their verbal systems barely demonstrate any agglutinating properties. The most important characteristics of these systems are the incomplete orthogonality of grammatical categories and the related properties of semantic non-additivity or morphological ...
Konstantin V. Filatov
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Expression of andic and spodic properties in tephra-influenced soils of northern Idaho, USA
Geoderma, 1993Abstract Tephra from Mount Mazama (Crater Lake) has strongly influenced genesis and morphology of forest soils in the Selkirk Mountains of northern Idaho. Characteristics associated with Andisols and their intergrades are common in soils throughout the area. In addition, tephra-influenced soils of the higher elevations exhibit properties of Spodosols
P.A. McDaniel, M.A. Fosberg, A.L. Falen
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Dielectric properties of a tilled sandy volcanic-vesuvian soil with moderate andic features
Soil and Tillage Research, 2013The apparent dielectric constant, e, of many agricultural soils, measurable with the Time Domain Reflectometry (TDR) method, may be used to estimate soil water content, u, with the Topp's empirical model. However, organic soils and those of volcanic origin do not obey this model, which has been termed ''universal''.
A. Comegna +5 more
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Significance of loess addition in relation to andic soil properties of volcanic ash soils
Soil Science and Plant Nutrition, 1993 Abstract Sixty two soil-loess combinations using 2 loess samples from China and 6 volcanic ash soils from Japan were studied to determine the contribution of loess to some of the chemical properties of Andisols. Prior to mixing- the loess with the soil samples, CaCO3 was removed by pretreating the loess samples with a sodium acetate buffer solution ...
Anabella T. Bautista, Katsuhiro Inoue
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Geoderma, 2010
Abstract In volcanic soils of the Solofrana valley (south-western Italy), contamination by Cr and Cu occurs as a consequence of agricultural practices and surface deposition of polluted river sediments by periodic floods. In this study, the metal distribution in micromorphological features and clay fractions ( − 1 ).
ZAMPELLA, MARIA VITTORIA +5 more
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Abstract In volcanic soils of the Solofrana valley (south-western Italy), contamination by Cr and Cu occurs as a consequence of agricultural practices and surface deposition of polluted river sediments by periodic floods. In this study, the metal distribution in micromorphological features and clay fractions ( − 1 ).
ZAMPELLA, MARIA VITTORIA +5 more
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Geoderma, 2003
In volcanic regions, soils containing both noncrystalline materials and layer silicates are widespread. Although the respective contribution of these components to soil physical behaviours is difficult to quantify, it is an important issue in the Canary Islands, where Andisols and andic soils are transported to the low lands for cultivation (‘‘sorriba’’
S. Armas-Espinel +3 more
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In volcanic regions, soils containing both noncrystalline materials and layer silicates are widespread. Although the respective contribution of these components to soil physical behaviours is difficult to quantify, it is an important issue in the Canary Islands, where Andisols and andic soils are transported to the low lands for cultivation (‘‘sorriba’’
S. Armas-Espinel +3 more
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Communications in Soil Science and Plant Analysis, 1993
Abstract Relationships between charge variation and diagnostic soil properties were studied in Andisols and andic subgroups of Inceptisols and Ultisols. Charge variation was calculated as the difference between “field” or actual cation exchange capacity (CECa), and potential CEC (1M NH4OAc, pH 7).
M. Espino‐Mesa +2 more
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Abstract Relationships between charge variation and diagnostic soil properties were studied in Andisols and andic subgroups of Inceptisols and Ultisols. Charge variation was calculated as the difference between “field” or actual cation exchange capacity (CECa), and potential CEC (1M NH4OAc, pH 7).
M. Espino‐Mesa +2 more
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