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Table 2 Inventory-based site C stocks and ∆C estimates using arithmetic plot means (standard deviation)

From: Comparison of carbon-stock changes, eddy-covariance carbon fluxes and model estimates in coastal Douglas-fir stands in British Columbia

  DF49 HDF90 HDF88 HDF00
Live     
Foliage C 2002 12.7 (1.8) 2.7 (0.9) 2.6 (0.8) 0 (0.1)
Foliage ∆C −0.1 (0.7) 1.2 (0.7) 1.5 (0.4) 0.4 (0.5)
Branch C 2002 22.1 (4) 2.5 (1) 1.5 (0.4) 0 (0.1)
Branch ∆C 0.7 (1.2) 1.3 (0.9) 1.8 (0.5) 0.1 (0.2)
Bark C 2002 17.6 (3.8) 0.7 (0.1) 1.1 (0.4) 0 (0)
Bark ∆C 0.9 (0.9) 0.7 (0.3) 1 (0.3) 0.1 (0.2)
Stem C 2002 90.6 (23.4) 2.4 (0.4) 4.7 (2) 0.1 (0.3)
Stem ∆C 5.7 (4.7) 3.3 (1.1) 4.4 (1.3) 0.6 (1.1)
Roots C 2002 32.6 (8.3) 1.8 (0.3) 2.8 (1.3) 0.1 (0.1)
Roots ∆C 1.6 (1.6) 1.8 (0.6) 3.9 (0.9) 0.7 (1.5)
Understory C 2002 1.3 (0.6) 8.3 (1.9) 11.2 (4.7) 4.9 (1.8)
Understory ∆C 1.3 (1.8) −0.2 (2.8) −2.6 (4.5) 1.7 (1.9)
Total Live C 2002 177 (39.9) 18.5 (3.7) 24 (4.7) 5.2 (2)
Total Live ∆C 10.2 (8.7) 8.1 (6) 10 (5.9) 3.7 (4.4)
Detritus     
Standing Dead C 2002 21.8 (13.9) 0.2 (0.2) 0 (0.1) 0 (0.2)
Standing Dead ∆C −3.4 (11.1) 0.5 (0.6) 0.1 (0.2) 0 (0.2)
Stumps C 2002 6.4 (3.2) 5.7 (2.8) 11.7 (6.1) 11.9 (10.6)
Stumps ∆C 0 (0) 0 (0) 0 (0) 0 (0)
Large Woody Debris C 2002 34.9 (20.5) 12.3 (8.7) 43.3 (25.3) 14.4 (11.1)
Large Woody Debris ∆C 1.6 (12.4) −3.5 (9.7) −1.5 (18.8) −0.9 (6.3)
Fine Woody Debris C 2002 3.1 (1) 1.3 (0.7) 0.5 (0.6) 6.1 (2.9)
Fine Woody Debris ∆C −0.9 (1) −0.7 (0.8) 0.8 (0.8) −4.5 (2.6)
Forest Floor C 2002 13.8 (7.3) 12.1 (7.2) 18.8 (13.1) 18.2 (11.6)
Forest Floor ∆C 11 (6.5) 1.9 (11.2) 24.8 (19.7) 0.1 (12.3)
Total Detritus C 2002 79.9 (32.7) 31.6 (8.4) 74.4 (38.7) 50.6 (16.8)
Total Detritus ∆C 8.2 (21) −1.9 (8.1) 24.2 (30.3) −5.4 (12.6)
Soil     
Mineral Soil 0–15 cm C 2002 38.6 (21.9) 29 (8.9) 34.6 (16.1) 23.6 (11.3)
Mineral Soil 0–15 cm ∆C 18.8 (24.1) 27.8 (27.7) 10.7 (32.4) 24.2 (15.2)
Totals     
Total Live ∆C 18.3 (23.4) 6.2 (10.5) 34.2 (30.6) −1.7 (14.9)
+ Total Detritus ∆C
Total Live ∆C 37.2 (34.7) 34 (29.8) 44.9 (41.3) 22.5 (14.2)
+ Total Detritus ∆C
+ Mineral Soil 0 - 15 cm ∆C
  1. All units are Mg C ha−1.