Table 3 Average and standard error of the mean (SE) of daily growing season net ecosystem exchange (NEE) and methane (CH4) emissions for each of the major peatland-containing ecozones [69]
From: Spatially-integrated estimates of net ecosystem exchange and methane fluxes from Canadian peatlands
(A) Fen categories combined for use with Peatlands of Canada Map | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Ecozone | NEE (g CO2 m−2 day−1) | CH4 (mg CH4 m−2 day−1) | ||||||||||
Bog | Fen | Bog | Fen | |||||||||
n | Avg | SE | n | Avg | SE | n | Avg | SE | n | Avg | SE | |
Atlantic Maritime | 5 | − 0.7 | 5.2 | 0 | − 1.3 | 2.8 | 7 | 40.8 | 7.0 | 0 | 65.8 | 8.4 |
Boreal Plains | 11 | − 8.6 | 2.7 | 6 | − 11.2 | 1.2 | 3 | 2.2 | 2.1 | 12 | 78.8 | 23.6 |
Boreal Shield | 13 | − 4.4 | 2.0 | 5 | − 0.2 | 1.4 | 28 | 33.0 | 8.4 | 31 | 39.6 | 7.8 |
Hudson Plains | 5 | − 3.8 | 1.4 | 7 | − 0.9 | 2.2 | 15 | 28.8 | 7.8 | 17 | 17.1 | 6.0 |
Mixedwood Plains | 2 | − 3.1 | 0.1 | 4 | − 1.3 | 2.8 | 3 | 7.0 | 6.5 | 3 | 65.8 | 8.4 |
Taiga Plains | 1 | − 1.3 | 2.7 | 4 | − 5.8 | 3.2 | 4 | 124.2 | 54.9 | 4 | 63.8 | 36.5 |
Taiga Shield | 0 | − 1.3 | 2.7 | 3 | 0.3 | 0.5 | 2 | 27.0 | 21.0 | 28 | 34.3 | 7.4 |
Total | 37 | − 4.9 | 1.3 | 29 | − 3.5 | 1.1 | 62 | 35.8 | 6.2 | 95 | 40.8 | 5.1 |
(B) Fen categories separated for use with new peatlands map | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Ecozone | NEE (g CO2 m−2 day−1) | CH4 (mg CH4 m−2 day−1) | ||||||||||||||||
Bog | Poor fen | Rich-intermediate | Bog | Poor fen | Rich-intermediate | |||||||||||||
n | Avg | SE | n | Avg | SE | n | Avg | SE | n | Avg | SE | n | Avg | SE | n | Avg | SE | |
Atlantic Maritime | 5 | − 0.7 | 5.2 | 0 | − 1.3 | 2.8 | 0 | − 0.9 | 2.2 | 7 | 40.8 | 7.0 | 0 | 65.8 | 8.4 | 0 | 17.1 | 6.0 |
Boreal Plains | 11 | − 8.6 | 2.7 | 1 | − 12.5 | 0.5 | 5 | − 10.2 | 1.1 | 3 | 2.2 | 2.1 | 1 | 0.9 | 9.4 | 11 | 85.8 | 24.7 |
Boreal Shield | 13 | − 5.5 | 2.1 | 1 | 0.4 | 0.5 | 4 | − 0.3 | 1.8 | 28 | 33.0 | 8.4 | 12 | 34.2 | 9.4 | 19 | 43.0 | 11.4 |
Hudson Plains | 5 | − 5.4 | 1.7 | 0 | − 1.3 | 2.8 | 7 | − 0.9 | 2.2 | 15 | 28.8 | 7.8 | 0 | 34.2 | 9.4 | 17 | 17.1 | 6.0 |
Mixedwood Plains | 2 | − 7.6 | 2.1 | 4 | − 1.3 | 2.8 | 0 | Not mapped | 3 | 3 | 7.0 | 3 | 65.8 | 8.4 | 0 | Not mapped | ||
Taiga Plains | 1 | − 1.3 | 2.7 | 0 | 0.3 | 0.5 | 4 | − 5.8 | 3.2 | 4 | 124.2 | 54.9 | 1 | 165.3 | 11.6 | 3 | 30.0 | 19.4 |
Taiga Shield | 0 | − 1.3 | 2.7 | 3 | 0.3 | 0.5 | 0 | − 5.8 | 3.2 | 2 | 27.0 | 21.0 | 7 | 39.5 | 11.6 | 21 | 32.5 | 9.2 |
Total | 37 | − 4.9 | 1.3 | 9 | − 1.8 | 1.8 | 20 | − 4.3 | 1.4 | 62 | 35.8 | 6.2 | 24 | 43.7 | 8.2 | 71 | 39.8 | 6.2 |