Research Article

Influence of Fractional Differential on Correlation Coefficient between EC1:5 and Reflectance Spectra of Saline Soil

Table 4

The absolute value of correlation coefficient of each mathematic conversion and the maximal absolute value of correlation coefficient after differential with corresponding order.

BandOrderOrderOrder

 
5050.3470.5981.40.3460.6021.60.3370.5671.6
8240.2740.60820.2710.59420.2570.5292
10560.2710.4731.20.2690.4781.20.2560.4761.4
17700.2350.50510.2370.49610.2360.5030.8
18670.2290.6101.80.2300.5951.80.2270.5041.8
21500.1600.55520.1610.55520.1630.5392
21510.1590.61.60.1610.6051.60.1630.5911.6
22320.1950.5110.60.1980.5020.60.2030.450.6
22390.1990.5680.60.2020.5690.60.2060.5430.6
22450.2020.5060.60.2040.510.60.2080.5180.8
22490.2010.5771.60.2040.5721.60.2080.5401.6
23700.1410.3910.1410.36510.1360.2861
24420.0040.4920.80.0050.4570.80.0080.3271
24430.0020.4520.80.0030.4180.80.0060.2730.8
 
5050.3440.5981.60.3440.5981.60.3420.4961.6
8240.2670.57620.2670.57620.2770.6212
10560.2650.4801.40.2650.4801.40.2750.4231.4
17700.2370.4880.80.2370.4880.80.2120.5171
18670.2290.5721.80.2290.5721.80.2090.5701.8
21500.1630.55220.1630.55220.1310.4932
21510.1630.6051.60.1630.6051.60.1310.5041.8
22320.2000.4900.60.2000.4900.60.1700.5110.6
22390.2040.5650.60.2040.5650.60.1760.4720.6
22450.2060.5080.60.2060.5080.60.1800.3710.6
22490.2060.5641.60.2060.5641.60.1800.5781.2
23700.1400.33810.1400.33810.1320.4680.8
24420.0070.4080.80.0070.4080.80.0020.3990.8
24430.0040.3710.80.0050.3710.80.0040.4460.6

Note: represents the absolute value of correlation coefficient of each mathematic conversion without differential treatment; represents the maximal absolute value of correlation coefficient after differential.