Remote Sensing Monitoring of Soil Salinity in Weigan River–Kuqa River Delta Oasis Based on Two-Dimensional Feature Space

Soil salinization is a serious resource and ecological problem globally. The Weigan River–Kuqa River Delta Oasis key region in the arid semi-arid regions of China with prominent soil salinization. saline soils oasis are widely distributed over large area, causing great harm to agricultural development environment. Remote sensing monitoring can provide reference method for management regional We extracted spectral indices performed correlation analysis using measurement data Sentinel-2 remote data. Then, two-dimensional feature space inversion models salinity were constructed based on preferred indices, namely, canopy response index (CRSI), composite (COSRI), normalized difference water (NDWI), green atmospherically resistant vegetation (GARI). typical zone was monitored analyzed. found that CRSI-COSRI model optimal (R2 0.669), followed by CRSI-NDWI (0.656) CRSI-GARI (0.604) models. Therefore, effectively extract information study area. This significance understanding situation Oasis, enriching methods, solving China.