Results 1 to 10 of about 2,978 (150)

Andic properties in soils with histic horizon “O” in the highlands of Southern Brazil [PDF]

open access: yesRevista Brasileira de Ciência do Solo, 2021
Soils with andic properties are characterized by a low apparent density, variable charges, large amounts of allophanes, imogolite, ferrihydrite, and/or organo-metallic complexes with Al, and present high phosphate retention.
Jaime Barros dos Santos Junior   +1 more
doaj   +6 more sources

The effect of Al, Si and Fe contents (selective dissolution) on soil physical properties at the northern slope of Mt. Kawi [PDF]

open access: yesJournal of Degraded and Mining Lands Management, 2015
A toposequence at the northern slope of Mt. Kawi (East Java), having andic properties, were studied. Soil samples at various horizons from five profiles along the toposequence were selected for this study.
I Nita, S R Utami, Z Kusuma
doaj   +4 more sources

VARIABILIDAD ESPACIAL DE LAS PROPIEDADES ÁNDICAS DE UN ANDISOL HIDROMÓRFICO DEL ORIENTE ANTIOQUEÑO (COLOMBIA) SPATIAL VARIABILITY OF THE ANDIC PROPERTIES IN AN HYDROMORPHIC ANDISOL FROM THE ANTIOQUIA EAST (COLOMBIA)

open access: yesRevista Facultad Nacional de Agronomía Medellín, 2009
Se estudió la variabilidad espacial de las propiedades ándicas y de otras relacionadas con ellas, en el horizonte superficial de un Andisol de régimen de humedad ácuico.
Daniel Francisco Jaramillo Jaramillo
doaj   +1 more source

Andic Soil Properties and Tephra Layers Hamper C Turnover in Icelandic Peatlands [PDF]

open access: yesJournal of Geophysical Research: Biogeosciences, 2021
Abstract Due to frequent volcanic activity and erosion of dryland soils, magnified by land use after human settlement (ca. 870 CE), peatlands in Iceland receive regular additions of mineral eolian deposits. Their soils may develop not only histic but also andic characteristics. Yet, mineral eolian deposition as an
Susanne Claudia Möckel   +2 more
openaire   +1 more source

Non-allophanic Andosols of Trindade Island, south Atlantic: a new soil order in Brazil [PDF]

open access: yesRevista Brasileira de Ciência do Solo, 2020
The pedological studies carried out so far in Trindade Island (TI) have obtained patchy evidences of allophane, without detailed mineralogical and micromorphological studies to confirm the occurrence of Andosols in TI.
Ana Carolina Campos Mateus   +4 more
doaj   +1 more source

Phosphorus desorbability in soils with andic properties from the Azores, Portugal

open access: yesRevista de Ciências Agrárias, 2009
Desorbability of phosphorus (P des) at P sorption maxima in eighteen horizons (surface and subsurface) of soils with andic properties from the Azores, Portugal, was determined by eight successive extractions using distilled water (H2O), calcium chloride (CaCl2), Bray 2 (B2), Mehlich 3 (M3), Egnér-Riehm (ER) and Olsen (OL) methods.
Auxtero, E., Madeira, M.
openaire   +5 more sources

The hidden ecological resource of andic soils in mountain ecosystems: evidence from Italy [PDF]

open access: yesSolid Earth, 2018
Andic soils have unique morphological, physical, and chemical properties that induce both considerable soil fertility and great vulnerability to land degradation.
F. Terribile   +10 more
doaj   +1 more source

Competitive adsorption of phosphate with sulfate, humic acid, and fulvic acid by allophane in different parent materials in Central Java

open access: yesIlmu Pertanian (Agricultural Science), 2022
Andisol is a soil that has andic properties and develops from volcanic parent materials, especially ash. Andic soil properties are formed due to weathering of tephra or other parent materials that contain volcanic glass in large quantities.
Lilia Fauziah   +2 more
doaj   +1 more source

Evolutive and regressive soil sequences for characterization of soils in laurel forest (Tenerife, Canary Islands) [PDF]

open access: yesSpanish Journal of Soil Science, 2014
Soil degradation processes have achieved the recognition of a global environmental problem in recent years. It has been suggested by various international forums and organizations that in order to adequately establish methods to combat land degradation ...
José Asterio Guerra-García   +2 more
doaj   +1 more source

Ground Fire Legacy Effects on Water-Dynamics of Volcanic Tropical Soils

open access: yesSpanish Journal of Soil Science, 2023
The forest floor is a critical component in maintaining the life cycles of forest ecosystems. It normally includes organic soil horizons, known as duff and litter, which are prone to be rapidly consumed after flaming and smoldering fires.
Luis D. Olivares-Martinez   +3 more
doaj   +1 more source

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