Table 1 Average Flux of Carbon Per Year
This table shows the average change per year in the total amount of carbon stored the forest between 1985 and 1998. The values shown for each category came from Tables 2 through 4.
|
Category |
Tons C/Year (from 1985 to 1998) |
|
Flux from Trees |
-56540 |
|
Understory |
1022 |
|
Forest Floor |
11439 |
|
Soil |
73156 |
|
Net Annual Flux From Forestry (tons) |
29078 |
|
Net Annual Flux From Forestry (MTCE) |
26379 |
Table 2- Flux From Trees: -56,540 tons of C per year
1985
|
Forest Type |
1985 Biomass |
Expansion Ratio of Volume of Merchantable to Total Volume of all Biomass |
Total Volume of Above and Below ground Biomass (mil ft^3) |
Tree Biomass Volume to Mass Conversion Value** |
Mass of Tree Biomass in Dry Short Tons |
Percent Carbon |
Carbon Contained In Tree Biomass |
|
White Pine/Red Pine |
37.9 |
2.193 |
83.1147 |
0.421 |
1091728.21 |
0.521 |
568790.3961 |
|
Spruce/Fir |
0 |
2.193 |
0 |
0.351 |
0.00 |
0.521 |
0 |
|
Loblolly/Shortleaf |
4.6 |
2.193 |
10.0878 |
0.497 |
156392.23 |
0.521 |
81480.35109 |
|
Oak/Pine |
5.6 |
2.193 |
12.2808 |
0.497 |
190390.54 |
0.521 |
99193.47089 |
|
Oak/Hickory |
13.7 |
2.193 |
30.0441 |
0.374 |
350578.59 |
0.521 |
182651.4475 |
|
Oakfum/cypress |
0 |
2.193 |
0 |
0.497 |
0.00 |
0.521 |
0 |
|
Elm/ash/red maple |
0 |
2.193 |
0 |
0.497 |
0.00 |
0.521 |
0 |
|
Northern Hardwoods |
8.1 |
2.193 |
17.7633 |
0.497 |
275386.32 |
0.521 |
143476.2704 |
|
Aspen Birch |
0 |
2.193 |
0 |
0.370 |
0.00 |
0.521 |
0 |
|
Total Softwoods |
69.9 |
2.193 |
153.2907 |
2064475.88 |
1075591.936 |
||
|
White Pine/Red Pine |
4 |
2.14 |
8.56 |
0.530 |
141548.16 |
0.498 |
70490.98368 |
|
Spruce/Fir |
0 |
2.14 |
0 |
0.525 |
0.00 |
0.498 |
0 |
|
Loblolly/Shortleaf |
0.4 |
2.14 |
0.856 |
0.497 |
13270.66 |
0.498 |
6608.787876 |
|
Oak/Pine |
5.3 |
2.14 |
11.342 |
0.497 |
175836.22 |
0.498 |
87566.43935 |
|
Oak/Hickory |
290.6 |
2.14 |
621.884 |
0.636 |
12340168.59 |
0.498 |
6145403.957 |
|
Oakfum/cypress |
0 |
2.14 |
0 |
0.497 |
0.00 |
0.498 |
0 |
|
Elm/ash/red maple |
43.5 |
2.14 |
93.09 |
0.497 |
1443184.10 |
0.498 |
718705.6815 |
|
Northern Hardwoods |
30.9 |
2.14 |
66.126 |
0.497 |
1025158.36 |
0.498 |
510528.8634 |
|
Aspen Birch |
0 |
2.14 |
0 |
0.497 |
0.00 |
0.498 |
0 |
|
Hardwood Total |
374.7 |
2.14 |
801.858 |
15139166.09 |
7539304.713 |
|
Total Carbon 1985 |
8614897 |
1998
|
Forest Type |
1998 Millions of f^t3 |
Expansion Ratio of Volume of Merchantable and Total Volume |
Total Volume of Above and Below ground Biomass (mil ft^3) |
Tree Biomass Volume to Mass Conversion Value** |
Mass of Tree Biomass in Dry Short Tons |
Percent Carbon |
Carbon Contained In Tree Biomass |
|
White Pine/Red Pine |
54.9 |
2.193 |
120.3957 |
0.421 |
1581421.60 |
0.521 |
823920.6529 |
|
Spruce/Fir |
10.5 |
2.193 |
23.0265 |
0.351 |
252167.81 |
0.521 |
131379.4273 |
|
Loblolly/Shortleaf |
2 |
2.193 |
4.386 |
0.497 |
67996.62 |
0.521 |
35426.2396 |
|
Oak/Pine |
16.8 |
2.193 |
36.8424 |
0.497 |
571171.62 |
0.521 |
297580.4127 |
|
Oak/Hickory |
17.7 |
2.193 |
38.8161 |
0.374 |
452937.31 |
0.521 |
235980.3373 |
|
Oakfum/cypress |
0 |
2.193 |
0 |
0.497 |
0.00 |
0.521 |
0 |
|
Elm/ash/red maple |
0 |
2.193 |
0 |
0.497 |
0.00 |
0.521 |
0 |
|
Northern Hardwoods |
9.6 |
2.193 |
21.0528 |
0.497 |
326383.78 |
0.521 |
170045.9501 |
|
Aspen Birch |
0 |
2.193 |
0 |
0.370 |
0.00 |
0.521 |
0 |
|
Total Softwoods |
111.5 |
2.193 |
244.5195 |
3252078.73 |
1694333.02 |
||
|
White Pine/Red Pine |
7.4 |
2.14 |
15.836 |
0.530 |
261864.10 |
0.498 |
130408.3198 |
|
Spruce/Fir |
0.9 |
2.14 |
1.926 |
0.525 |
31547.88 |
0.498 |
15710.84424 |
|
Loblolly/Shortleaf |
0 |
2.14 |
0 |
0.497 |
0.00 |
0.498 |
0 |
|
Oak/Pine |
15.1 |
2.14 |
32.314 |
0.497 |
500967.35 |
0.498 |
249481.7423 |
|
Oak/Hickory |
287.6 |
2.14 |
615.464 |
0.636 |
12212775.24 |
0.498 |
6081962.072 |
|
Oakfum/cypress |
1.9 |
2.14 |
4.066 |
0.497 |
63035.63 |
0.498 |
31391.74241 |
|
Elm/ash/red maple |
25.3 |
2.14 |
54.142 |
0.497 |
839369.14 |
0.498 |
418005.8331 |
|
Northern Hardwoods |
44 |
2.14 |
94.16 |
0.497 |
1459772.42 |
0.498 |
726966.6663 |
|
Aspen Birch |
0.1 |
2.14 |
0.214 |
0.497 |
3317.66 |
0.498 |
1652.196969 |
|
Hardwood Total |
382.3 |
2.14 |
818.122 |
15372649.43 |
7655579.417 |
||
|
Total Carbon 1998 |
9,349,912 |
Biomass
Unit: Millions of ft3
Source: Forest Statistics for Rhode Island: 1985 and 1998 USDA
Expansion Ratio of Volume of Merchantable Biomass to Total Volume of all Biomass
Unit: ft3/ft3
Source: State Workbook: Methodologies for Estimating Greenhouse Gas Emissions Volume VIII, Chapter 6
Total Above Ground and Below Ground Biomass
Unit: Millions of ft3
Source: Biomass x Expansion Ratio of Volume of Merchantable Wood to Total Volume of all Biomass
Tree Volume to Mass Conversion Value
Unit: Dry Short Tons/Millions of ft3
Source: Source: State Workbook: Methodologies for Estimating Greenhouse Gas Emissions Volume VIII, Chapter 6
** No data was available for certain forest types. The IPCC default of 0.497 was used in these occasions.
Mass of Tree Biomass
Unit: Dry Short Tons
Source: Total Above Ground and Below Ground Biomass x Tree Volume to Mass Conversion Value
Percent Carbon
Unit: Percentage of Carbon in Tree Biomass (Short Tons/Short Tons)
Source: State Workbook: Methodologies for Estimating Greenhouse Gas Emissions Volume VIII, Chapter 6
Carbon Contained in Biomass
Unit: Tons of Carbon
Source: Percent Carbon x Mass of Tree Biomass
Table 3 Carbon Flux From Understory
|
Year |
Forest Land (thousands of acres |
lbs of C in the Understory/Acre |
lbs of C in Understory |
tons of C |
|
|
1985 |
411.9 |
1406 |
579131400 |
289,566 |
|
|
1998 |
393 |
1406 |
552558000 |
276,279 |
|
|
Average Annual Flux (tons/Year) |
1,022 |
||||
Forested Land
Unit: Thousands of Acres
Source: Forest Statistics for Rhode Island: 1985 and 1998 USDA
Pounds of Carbon in Understory per Acre
Unit: lbs. C/ Thousands of Acres
Source: State Workbook: Methodologies for Estimating Greenhouse Gas Emissions Volume VIII, Chapter 6
Pounds of Carbon in Understory
Units: lbs. C
Source: Forested Land x Pounds of Carbon in Understory per Acre
Average Annual Flux
Units: tons/year
Source: (Tons of C in 1998-Tons of C in 1985)/ 13 years
Table 4- Flux of Carbon from Forest Floor
|
Forest Type |
1985 Forest Area |
Carbon in Forest Floor Per Acre (lbs/ac) |
Carbon (tons) |
1998 Forest Area |
Carbon in Forest Floor Per Acre (lbs/ac) |
Carbon (tons) |
|
Pines |
39 |
23061 |
449,690 |
53 |
23,061 |
611,117 |
|
Hardwoods |
341.1 |
23122 |
3,943,457 |
340 |
23,122 |
3,930,740 |
|
Total |
4,393,147 |
Total |
4,541,857 |
|||
|
Annual Flux tons/yr |
11,439 |
Forested Land
Unit: Thousands of Acres
Source: Forest Statistics for Rhode Island: 1985 and 1998 USDA
Pounds of Carbon in Forest Floor per Acre
Unit: lbs. C/ Thousands of Acres
Source: State Workbook: Methodologies for Estimating Greenhouse Gas Emissions Volume VIII, Chapter 6
Pounds of Carbon in Forest Floor
Units: lbs. C
Source: Forested Land x Pounds of Carbon in Forest Floor per Acre
Average Annual Flux
Units: tons/year
Source: (Tons of C in 1998-Tons of C in 1985)/ 13 years
|
Year |
Forest Land (thousands of acres |
lbs of C in the Soil/Acre |
lbs of C in |
tons of C |
||
|
1985 |
411.9 |
100638 |
41452792200 |
20726396.1 |
||
|
1998 |
393 |
100638 |
39550734000 |
19775367 |
||
|
Annual Flux (tons/Year) |
73,156 |
|||||
Forested Land
Unit: Thousands of Acres
Source: Forest Statistics for Rhode Island: 1985 and 1998 USDA
Pounds of Carbon in Soil per Acre
Unit: lbs. C/ Thousands of Acres
Source: State Workbook: Methodologies for Estimating Greenhouse Gas Emissions Volume VIII, Chapter 6
Pounds of Carbon in Soil
Units: lbs. C
Source: Forested Land x Pounds of Carbon in Soil per Acre
Average Annual Flux
Units: tons/year
Source: (Tons of C in 1998-Tons of C in 1985)/ 13 years