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

