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Participant: part of or influencing processes

Drainage water

Appears in 22 processs and 36 steps. Everything below is linked: open a process to see it in context.

Top processes

Nitrate leaching from the root zone to groundwater and coastal waters

5 steps

Nutrient availability and leaching

4 steps

Nitrate fate
Nitrate and base cations leach with drainage water to groundwater and streams
Base cation cycling (calcium, magnesium, potassium, sodium)
and 1 more in this process

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

4 steps

Soil export to rivers and ocean: sediment, dissolved carbon and nutrients

4 steps

Preferential flow and macropore bypass

2 steps

Water movement

1 step

Drainage, runoff and evaporation

Show 16 more processes

Cation exchange, pH and soil solution chemistry

1 step

Leaching removes displaced base cations, base saturation falls, Al3+ rises below pH 5

Water infiltration, retention and movement

1 step

Excess water drains below the root zone (deep percolation)

Soil sulfur cycling

1 step

Sulfate leaches with calcium, magnesium and potassium into drainage water

Nitrification-driven acidification of ammonium fertilised soil

1 step

Nitrate leaches with Calcium and Magnesium, leaving net acidity

Silicate weathering rate control and CO2 drawdown

1 step

Bicarbonate and dissolved silica are exported in drainage water to rivers

Root exudate chemistry, fate and priming

1 step

Small share leached below the rhizosphere as dissolved organic carbon

Soil nitrification, nitrate reduction and nitrogen gas losses

1 step

Nitrate leaches below the root zone with drainage water

Clay mineral transformation sequence

1 step

Leaching intensity and silica activity decide the clay type

Salinity and sodicity

1 step

Reclamation: gypsum supplies Calcium and leaching removes Na

Microbial necromass pathway to stable organic matter

1 step

Dissolved necromass leaches or respired during decay

Living soil system

1 step

Soil export to rivers and ocean: sediment, dissolved carbon and nutrients

Pyrite oxidation and acid sulfate weathering

1 step

Acid, Al and sulfate drain to ditches and estuaries and cause fish kills and metal release

Phosphate sorption on Fe and Al oxides and phosphorus availability

1 step

Once sorbent saturation passes roughly 25 percent phosphate losses by leaching and runoff rise steeply

Nutrient recycling versus new inputs across ecosystem age

1 step

Leaching and runoff export the surplus

Land water partitioning and plant water flux

1 step

Runoff and groundwater recharge carry the remainder to rivers and aquifers

Enhanced rock weathering on cropland

1 step

Bicarbonate is carried to rivers and the ocean

Often found with

Water 26 Nitrate 14 Calcium 8 Groundwater 8 Rivers 7 Nitrate 6 Soil 5 Base cations 5 Plant roots 5 Potassium 5 Magnesium 5 Soil solution 5

Known by 719 participants and resources across the map.