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

Table 6

The results of the PLSR models based on .

Order	Bands	Components					RPD
0	0
0.2	44	2	26.712	0.279	24.910	0.337	1.228
0.4	344	2	25.786	0.328	24.180	0.375	1.265
0.6	820	3	21.687	0.525	17.868	0.659	1.712
0.8	885	4	16.670	0.719	15.541	0.742	1.969
1	560	4	15.685	0.751	16.339	0.715	1.873
1.2	250	4	14.685	0.782	14.713	0.768	2.080
1.4	120	3	16.689	0.718	17.844	0.660	1.715
1.6	63	3	18.855	0.641	21.079	0.525	1.452
1.8	33	2	25.618	0.337	27.881	0.170	1.097
2	26	2	27.024	0.262	29.384	0.078	1.041