Key Laboratory of Smart City and Environment Modelling of Higher Education Institute;
Xinjiang University;
Urumqi;
800046;
China;
Key Laboratory of Oasis Ecology;
Xinjiang University;
Urumqi;
830046;
China;
Salinization; Digital soil mapping; XGBoost; Sentinel-1; Sentinel-2; Ogan-Kuqa River Oasis;