Journal of Sensors / 2018 / Article / Tab 2

Research Article

Application of Fractional Differential Calculation in Pretreatment of Saline Soil Hyperspectral Reflectance Data

Table 2

Classification criteria of the soil salinization type and soil sample classification statistics.

C(Cl)/2C(SO42−)Salinization typeZone AZone B
SamplesProportion (%)SamplesProportion (%)

<0.20SO42− salt type2288.000%1446.667%
0.20–1.00Cl-SO4 salt type312.000%1240.000%
1.00–2.00SO4-Cl salt type00310.000%
>2.00Cl salt type0013.333%

Note: C(Cl) and C(SO42−), respectively, represent the millimole amount of Cl and SO42− contained in 100 g soil.

We are committed to sharing findings related to COVID-19 as quickly and safely as possible. Any author submitting a COVID-19 paper should notify us at to ensure their research is fast-tracked and made available on a preprint server as soon as possible. We will be providing unlimited waivers of publication charges for accepted articles related to COVID-19. Sign up here as a reviewer to help fast-track new submissions.