Soil Microplastics Spectrum Based on Visible Near-Infrared Spectroscopy

As the largest "repository" of microplastics, soil is affected by structure, microplastics category and particle size. In this study, method combining indoor simulation modeling field verification proposed. The reflectance microplastic samples was collected ASD FieldSpec4 Hi-Res spectrometer, NOR, MSC, SNV were used for spectral pretreatment, differential transformations different orders are to enhance signal-to-noise ratio. results showed that decreased with increase content in soil. After FD SD transform, features enhanced obviously. regression model based on NOR transformation reflectivity combined first deviation best, Rc2, Rv2, RMSEC RMSEPare 0.75, 0.77, 0.16, 0.12,respectively.This study can provide a scientific basis quantitative research farmland northern Shaanxi, China. Bangladesh J. Bot. 51(4): 971-977, 2022 (December) Special