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Participant: part of or influencing processes

Water

Appears in 21 processs and 40 steps. Everything below is linked: open a process to see it in context.

Top processes

Chemical weathering: CO2-driven dissolution and CO2 consumption

9 steps

Weathering

4 steps

Start: Weathering
End: Weathering
Chemical weathering by carbonic acid dissolution
and 1 more in this process

Infiltration and surface partitioning of rain (rain intensity vs 1-1000 mm/h soil capacity)

3 steps

Matrix infiltration along a wetting front (rate falls from sorptivity-driven to Ksat-limited, typically 5-200 mm/h)
Excess water ponds and leaves as overland flow, carrying sediment
Soil water store refills toward field capacity (about 0.2-0.4 m3/m3 depending on texture)

Physical weathering: frost cracking, thermal stress and root wedging

3 steps

Mineral weathering and parent material

2 steps

Nitrogen cycling

2 steps

Show 15 more processes

Drainage, groundwater recharge and runoff (about 65 percent of rain returns to air, 35 percent runs off)

2 steps

Weathering regime: supply-limited versus kinetically limited

2 steps

Living soil system

1 step

Mineral weathering and parent material

Terrestrial ecosystem functioning

1 step

Weathering

Soil formation

1 step

Horizon differentiation by translocation

Soil gas exchange and redox

1 step

Aeration status

Phosphorus cycling

1 step

Fate of soil phosphate

Slaking, crust formation and runoff

1 step

Fast wetting traps air and bursts aggregates (slaking)

Pedogenesis and soil horizon development

1 step

Which dominant pedogenic pathway operates?

Peat accumulation and wetland methane

1 step

A high water table excludes oxygen and the enzyme latch (phenol oxidase starved of oxygen) slows decomposition

Erosion versus soil production balance

1 step

Erosion strips fertile topsoil, organic matter and nutrients

Biotic enhancement and climate control of weathering

1 step

Erosion supplies fresh mineral surface that speeds chemical weathering

Enhanced rock weathering on cropland

1 step

Dissolution consumes CO2 and forms bicarbonate

Decomposition

1 step

Leached out as dissolved organic carbon

Mineral surfaces accumulate and protect organic carbon as soil ages

1 step

Weathering forms short-range-order Fe and Al minerals

Often found with

Water 22 Minerals 10 Rock 9 Carbonic acid 8 Plant roots 6 Soil 6 Primary minerals 5 Calcium 5 Clay minerals 4 Parent rock 3 Microbes 3 Minerals 3

Known by 719 participants and resources across the map.