Quantitative Estimating Salt Content of Saline Soil Using Laboratory Hyperspectral Data Treated by Fractional Derivative

Table 5

The results of the PLSR models based on .

Order	Bands	Components					RPD
0	0
0.2	129	3	26.377	0.297	24.722	0.347	1.238
0.4	835	3	25.152	0.361	22.949	0.437	1.333
0.6	891	4	20.108	0.591	17.347	0.678	1.764
0.8	743	4	18.374	0.659	16.791	0.699	1.822
1	462	2	22.825	0.474	22.332	0.467	1.370
1.2	215	4	15.682	0.751	17.684	0.666	1.730
1.4	129	3	17.658	0.685	17.448	0.675	1.754
1.6	78	3	17.917	0.675	20.493	0.551	1.493
1.8	43	3	21.585	0.529	24.202	0.374	1.264
2	30	2	26.516	0.290	30.414	0.012	1.006