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Publications & Products

Carbon in United States Forests and Wood Products, 1987-1997: State-by-State Estimates
by Richard A. Birdsey & George M. Lewis

Florida Estimate for 1987-1997

Table 1. Area by land class (1000 ac).
Land class	1987	1992	1997	Average Annual Change
				1987-1992	1992-1997	1987-1997
Timberland	14,983	14,794	14,605	-38	-38	-38
Other forest land	1,245	1,146	1,047	-20	-20	-20
Reserved timberland	493	548	602	11	11	11
TOTAL	16,721	16,487	16,254	-47	-47	-47

Table 2. Area of forest land by forest type (1000 ac).
Forest type	1987	1992	1997	Average Annual Change
				1987-1992	1992-1997	1987-1997
White-red-jack pine	0	0	0	0	0	0
Spruce-fir	0	0	0	0	0	0
Longleaf-slash pine (planted)	3,350	3,513	3,677	33	33	33
Longleaf-slash pine (natural)	2,513	2,351	2,189	-32	-32	-32
Loblolly-shortleaf pine (planted)	638	792	946	31	31	31
Loblolly-shortleaf pine (natural)	762	725	688	-7	-7	-7
Oak-pine	1,125	1,316	1,507	38	38	38
Oak-hickory	1,205	1,652	2,098	89	89	89
Oak-gum-cypress	4,899	4,578	4,258	-64	-64	-64
Elm-ash-cottonwood	114	88	62	-5	-5	-5
Maple-beech-birch	0	0	0	0	0	0
Aspen-birch	0	0	0	0	0	0
Other forest types	343	212	80	-26	-26	-26
Non-stocked	1,772	1,260	748	-102	-102	-102
TOTAL	16,721	16,487	16,254	-47	-47	-47

Table 3. Total carbon stock on forest land and annual change by forest type (MMTC).
Forest type	1987	1992	1997	Average Annual Change
				1987-1992	1992-1997	1987-1997
White-red-jack pine	0.0	0.0	0.0	0.00	0.00	0.00
Spruce-fir	0.0	0.0	0.0	0.00	0.00	0.00
Longleaf-slash pine (planted)	167.7	178.2	188.1	2.11	1.97	2.04
Longleaf-slash pine (natural)	137.7	133.9	129.5	-0.76	-0.89	-0.83
Loblolly-shortleaf pine (planted)	30.0	38.0	46.0	1.59	1.61	1.60
Loblolly-shortleaf pine (natural)	39.7	39.4	39.3	-0.05	-0.03	-0.04
Oak-pine	59.4	71.3	83.6	2.37	2.46	2.42
Oak-hickory	68.6	92.4	116.5	4.77	4.81	4.79
Oak-gum-cypress	298.5	287.5	275.9	-2.20	-2.33	-2.27
Elm-ash-cottonwood	7.8	5.6	3.3	-0.45	-0.47	-0.46
Maple-beech-birch	0.0	0.0	0.0	0.00	0.00	0.00
Aspen-birch	0.0	0.0	0.0	0.00	0.00	0.00
Other forest types	15.3	9.5	3.7	-1.17	-1.17	-1.17
Non-stocked	56.7	43.5	30.4	-2.63	-2.62	-2.62
TOTAL	881.5	899.4	916.2	3.59	3.35	3.47

Table 4. Total carbon stock on forest land and annual change by accounting component (MMTC).
Accounting component	1987	1992	1997	Average Annual Change
				1987-1992	1992-1997	1987-1997
Biomass	239.7	245.6	251.5	1.19	1.17	1.18
Forest floor and coarse woody debris	82.1	85.5	89.2	0.69	0.74	0.72
Soils	488.8	486.1	483.2	-0.54	-0.59	-0.57
Wood products and landfills	70.9	82.1	92.3	2.25	2.03	2.14
TOTAL	881.5	899.4	916.2	3.59	3.35	3.47

Table 5. Total carbon stock on forest land and annual change by owner (MMTC).
Owner group	1987	1992	1997	Average Annual Change
				1987-1992	1992-1997	1987-1997
National Forest	57.2	61.2	64.8	0.80	0.71	0.75
Other Public	129.2	143.0	157.5	2.76	2.89	2.83
Forest Industry	252.5	246.9	240.4	-1.12	-1.31	-1.21
Other Private	442.5	448.3	453.6	1.15	1.07	1.11
TOTAL	881.5	899.4	916.2	3.59	3.35	3.47

Table 6. Change in total carbon stock on forest land attributed to land use change (MMTC).
Accounting component	1987	1992	1997	Average Annual Change
				1987-1992	1992-1997	1987-1997
Biomass	0.0	-2.9	-3.9	-0.58	-0.21	-0.39
Forest floor and coarse woody debris	0.0	-1.2	-2.6	-0.25	-0.26	-0.26
Soils	0.0	-2.7	-4.7	-0.54	-0.40	-0.47
Wood products and landfills	0.0	3.0	6.5	0.59	0.70	0.65
TOTAL	0.0	-3.9	-4.8	-0.77	-0.18	-0.48

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