Table 2 Classification of the N pool according to age, depth and thaw legacy
From: A globally relevant stock of soil nitrogen in the Yedoma permafrost domain
N budget (Gt) | + | − | % | |
|---|---|---|---|---|
Frozen | 37.0 | 3.1 | 3.8 | 89.8 |
Unfrozen | 4.2 | 1.0 | 1.1 | 10.2 |
Holocene | 20.8 | 2.2 | 2.4 | 50.5 |
Pleistocene | 20.4 | 2.4 | 3.1 | 49.5 |
Seasonally thawed | 4.2 | 1.0 | 1.1 | 10.2 |
Thawed in the past | 30.4 | 2.9 | 3.6 | 73.8 |
‘Never’ thawed since deposition | 6.6 | 1.1 | 1.2 | 16.0 |
Below 1 m | 36.4 | 3.1 | 3.8 | 88.3 |
Below 3 m | 30.6 | 3.1 | 3.8 | 74.2 |
