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Resource: used or used up in processes

Potassium

Appears in 14 processs and 28 steps. Everything below is linked: open a process to see it in context.

Top processes

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

7 steps

Nutrient availability and leaching

4 steps

Clay mineral transformation sequence

3 steps

Mineral weathering and parent material

2 steps

Soil CO2 and biotic enhancement of weathering

2 steps

Biological weathering by roots, mycorrhizal fungi and microbes (plants speed weathering about 2-10 fold)

2 steps

Show 8 more processes

Living soil system

1 step

Nutrient availability and leaching

Decomposition

1 step

Leaching of soluble compounds from litter

Cation exchange, pH and soil solution chemistry

1 step

Cations held on exchange sites (Ca, Mg, K, Na, NH4, Al, H)

Roots and rhizosphere

1 step

Roots absorb water and mineral nutrients

Organic matter decomposition

1 step

Leaching of soluble compounds from fresh litter

Soil sulfur cycling

1 step

Sulfate leaches with calcium, magnesium and potassium into drainage water

Clay mineralogy and organic matter set cation exchange capacity

1 step

Higher CEC retains Ca, Mg, K and NH4 against leaching

Biotic enhancement and climate control of weathering

1 step

Fungal hyphae tunnel into feldspar and release cations

Often found with

Calcium 16 Magnesium 15 Water 9 Plant roots 8 Soil solution 7 Phosphorus 6 Clay minerals 6 Drainage water 5 Mycorrhizal fungi 4 Clay minerals 4 Nitrogen 3 Litter 3

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