Digital Mapping of Soil Drainage Classes Using Multitemporal RADARSAT-1 and ASTER Images and Soil Survey Data

Table 8

Accuracy (%) assessment of soil drainage classification models (DAC and DTC) as function of drainage classes (rows) and land use types.

Drainage classes	N1	N2	P	C	F	H
DAC method
D3	64	73	56	50	53	UC
D4	33	50	UC	UC	38	UC
D5	38	33	53	47	69	61
D6	79	73	33	56	26	58
D7	55	UC	40	69	30	74
Global accuracy	59	52	39	48	41	67
Kappa coefficient	0.38	0.35	0.19	0.29	0.38	0.45
Omission	11	17	11	23	7	22
DTC method
D3	73	75	59	89	47	UC
D4	54	81	UC	UC	68	UC
D5	59	60	49	UC	60	71
D6	65	77	67	78	29	80
D7	66	UC	42	85	77	92
Global accuracy	62	68	55	48	53	85
Kappa coefficient	0.45	0.57	0.39	0.24	0.21	0.74
Omission	12	16	12	21	6	22

UC: unclassified.