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6 Cards in this Set
- Front
- Back
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Acidity comes from |
high rainfall with good drainage coupled with an acid input replacing base cations with acidity over time aka. Leaching Ca, Mg, K -> H or sometimes Al |
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Processes that input acid into soils |
Respiration, nitrification, plant uptake |
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Respiration -> acid input |
CO2+H2O->H2CO3->H+HCO3 Rainfall pH=5.6 |
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Nitrification -> acid input |
NH4->NO3+H Nitric and Sulfuric acid |
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Living Organisms -> acid input |
Organic acids released by living organisms during plant uptake, H+ left behind coevolution of plant and soils succession |
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Aluminum |
Gibbsite At low pH(4.7), becomes unstable and releases Al+3 Aluminum hydrolysis -> 2step process |
