Table 2.

Final C factors per NLCD class, and source if derived from literature. Ranges of mean C factor values for each CMZ and area-weighted means across all CMZs are presented for Barren Land, Pasture/Hay, and Cultivated Crops, derived using Equation 3.

Class/Value	Classification	C factor	Source
11	Open Water	0	(Linard et al., 2014; Panagos et al., 2015b)
12	Perennial Ice/Snow	0	(Linard et al., 2014; Panagos et al., 2015b)
21	Developed, Open Space	0.03	(Fernandez et al., 2003; Linard et al., 2014)
22	Developed, Low Intensity	0.03	(Fernandez et al., 2003; Linard et al., 2014)
23	Developed, Medium Intensity	0.03	(Fernandez et al., 2003; Linard et al., 2014)
24	Developed, High Intensity	0.03	(Fernandez et al., 2003; Linard et al., 2014)
31	Barren Land	0.29 (0.02–0.52)	Calibrated Equation 3
41	Deciduous Forest	0.002	(Linard et al., 2014)
42	Evergreen Forest	0.002	(Linard et al., 2014)
43	Mixed Forest	0.002	(Linard et al., 2014)
52	Shrub/Scrub	0.04	(Linard et al., 2014)
71	Grassland/Herbaceous	0.01	(Linard et al., 2014)
81	Pasture/Hay	0.07 (0.008–0.21)	Calibrated Equation 3
82	Cultivated Crops	0.17 (0.02–0.31)	Calibrated Equation 3
90	Woody Wetlands	0.001	(Linard et al., 2014)
95	Emergent Herbaceous Wetlands	0.001	(Linard et al., 2014)