Research Article
Estimating Salt Concentrations Based on Optimized Spectral Indices in Soils with Regional Heterogeneity
Figure 2
Diffuse reflectance spectra of soil in different areas. (a) Mean reflectance spectra curve of the three regions. (b) Mean reflectance spectra curve of the three regions with SSC (0 g·kg−1).
| (a) |
| (b) |