Estimating carbon sequestration in the piedmont ecoregion of the United States from 1971 to 2010

Table 1 Piedmont ecoregion land cover transition rates between 1992 and 2000

	Water	Developed	M.disturbed	Mining	Nat.bare	Forest	Gra/shr	Agri.	Wetland	N.M.dist.	Total
Water	3576.9	4.0	21.4	0.0	0.0	210.2	0.0	93.2	31.3	0.0	3937.1
Developed	11.2	24,013.1	172.9	9.3	0.1	2262.8	1.2	653.1	4.3	0.0	27,128.1
M.disturbed	0.0	0.0	92.8	0.0	0.0	3176.9	0.5	16.6	16.5	0.0	3303.2
Mining	0.0	0.3	0.9	315.0	0.0	64.7	0.0	25.3	0.0	0.0	406.3
Nat.bare	0.0	0.0	0.0	0.0	3.9	0.0	0.0	0.0	0.0	0.0	3.9
Forest	23.9	2.8	3669.0	1.1	0.0	87,101.2	40.2	313.5	0.3	0.0	91,151.9
Grass/shrub	0.0	0.0	30.1	0.0	0.0	8.6	19.1	10.1	0.0	0.0	68.0
Agriculture	0.7	0.0	154.3	0.0	0.3	557.7	0.0	37,509.3	0.1	0.0	38,222.3
Wetland	0.0	0.0	14.8	0.0	0.0	0.0	0.0	0.0	1224.2	0.0	1239.0
N.M.dist.	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0
Total	3612.7	24,020.3	4156.2	325.4	4.3	93,382.1	61.1	38,621.2	1276.6	0.0	165,459.9

Areas summed by row indicate total land area in 2000; Areas summed by column indicate total land area in 1992. Area units: km². Total forest area in 1992 was 93,382.1 km². Forest to developed land (urban) conversion between 1992 and 2000 was 2262.8 km². Forest remaining as forest was 87,101.2 km². Forest to agriculture conversion was 557.7 km². Total forest area in 2000 was 91,151.9 km², of which 313.5 km² was converted from agriculture
Values italicized within the table represent land use and land cover remaining constant

ISSN: 1750-0680