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Resource: used or used up in processes

Cations

Appears in 8 processs and 11 steps. Everything below is linked: open a process to see it in context.

Top processes

Cation exchange, pH and soil solution chemistry

4 steps

Living soil system

1 step

Cation exchange, pH and soil solution chemistry

Humification and SOM stabilization

1 step

Humus increases cation exchange and water holding

Base cation cycling (calcium, magnesium, potassium, sodium)

1 step

Cations held on exchange sites exchange with the soil solution within minutes to hours

Clay mineralogy and organic matter set cation exchange capacity

1 step

2:1 clays hold high permanent charge; kaolinite and oxides hold little, mostly pH-dependent

Soil nitrogen mineralization and immobilization turnover

1 step

Ammonium pool in soil solution and on exchange sites

Show 2 more processes

Biochar and charcoal in soil

1 step

Surface oxidises, gaining carboxyl groups and CEC; pores adsorb water and nutrients

Salinity and sodicity

1 step

Classify salt-affected soil by EC_e and ESP

Often found with

Soil solution 8 Clay minerals 5 Soil organic matter 4 Water 3 Soil organic matter 2 Calcium 2 Magnesium 2 Potassium 2 Ammonium 2 Exchange sites 2 Clay minerals 2 Biochar 2

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