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Definition
| scientific study of soils |
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| ion with a net positive charge brought about by loss of elections |
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Definition
| affixing of cations to surface of certain mineral grains, in particular, the clay minerals, as a means of neutralizing a deficieny of positive charge |
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Definition
| Ability of a material to exchange cations held on its surface for cations present in surrounding solutions |
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Definition
| surface layer of some soils consisting of organix debris derived from decay of accumulated vegetation |
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| dark colored soil horizon below O horizon that is a mixture of humus and decomposed regolith |
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| soil layer consisting primarily of quartz sand below A horizon; zone of leaching |
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| Below E horizon, materials leached from overlying horizons are deposited; zone of deposition |
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| lowest horizon, parent material from which soil forms |
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