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Participant: part of or influencing processes

Permafrost

Appears in 4 processs and 9 steps. Everything below is linked: open a process to see it in context.

Top processes

Permafrost thaw and release of frozen soil carbon

5 steps

Soil thermal regime and heat flow

2 steps

Northern permafrost soils hold about 1,300 Pg C (range 1,100-1,500), more than the atmosphere
Deeper summer thaw exposes frozen organic matter to decomposition, releasing CO2 and methane; 5-15% of permafrost carbon may be released by 2100 under high emissions

Living soil system

1 step

Permafrost thaw and release of frozen soil carbon

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

1 step

Thawing permafrost deepens flow paths and raises baseflow

Often found with

Soil microbes 5 Arctic climate 4 Soil organic matter 4 Water 4 Carbon dioxide 3 Methane 3 Carbon 3 Heat 2 Soil organic matter 1 Frozen soil 1 Water 1

Known by 719 participants and resources across the map.