Evaluation of Different Soil Salinity Mapping Using Remote Sensing Techniques in Arid Ecosystems, Saudi Arabia

Table 2

Regression significances.

	NDSI	BI	SI-1	SI-2	SI-3	SI-4	SI-5	SI-6	SI-7	SI-8	SI-9
square	0.62	0.94	0.89	0.90	0.95	0.90	0.44	0.44	0.91	0.86	0.98
square adjusted	0.62	0.94	0.89	0.90	0.95	0.90	0.44	0.44	0.91	0.86	0.98
Root mean square error	1.51	760.08	1000.38	1139.67	773.06	1638.87	0.29	0.29	1780.57	1266.35	603.14
Mean of response	0.01	30262	14749	15716	33634	22431	0.18	0.01	19408	14958	28103