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Soil Acidity

Garrison Sposito

in The Chemistry of Soils

Published in print:
2016
Published Online:
November 2020
ISBN:
9780190630881
eISBN:
9780197559710
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780190630881.003.0015
Subject:
Chemistry, Environmental Chemistry

A soil is acidic if the pH value of the soil solution is less than 7.0. This condition is met in many soils where rainfall exceeds evapotranspiration, including ... More


Mineral Weathering

Garrison Sposito

in The Chemistry of Soils

Published in print:
2016
Published Online:
November 2020
ISBN:
9780190630881
eISBN:
9780197559710
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780190630881.003.0009
Subject:
Chemistry, Environmental Chemistry

Mineral weathering begins with mineral dissolution, typically as induced by protons or by ligands that form strong complexes with metals (Section 1.4). Proton-induced ... More


Properties and Management of Allophanic Soils

Anthony S. R. Juo and Kathrin Franzluebbers

in Tropical Soils: Properties and Management for Sustainable Agriculture

Published in print:
2003
Published Online:
November 2020
ISBN:
9780195115987
eISBN:
9780197561157
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780195115987.003.0017
Subject:
Earth Sciences and Geography, Soil Science

Allophanic soils are dark-colored young soils derived mainly from volcanic ash. These soils typically have a low bulk density (< 0.9 Mg/m3), a high water ... More


Aluminum Oxides: Alumina and Aluminosilicates

Jean-Pierre Jolivet

in Metal Oxide Nanostructures Chemistry: Synthesis from Aqueous Solutions

Published in print:
2019
Published Online:
November 2020
ISBN:
9780190928117
eISBN:
9780197559932
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780190928117.003.0009
Subject:
Chemistry, Physical Chemistry

Aluminum is the third most abundant element in Earth’s crust (8.3% in mass), behind oxygen (45.5%) and silicon (27.2%). It forms in nature various oxygenated mineral phases: hydroxides Al(OH)3, ... More


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