Fig. 3

Spatial distribution of near-surface oxygen concentration in dry bare land (Maps generated by ArcGIS 10.7(https://www.esri.com/en-us/arcgis/products/arcgis-desktop/overview)).
Spatial distribution of near-surface oxygen concentration in dry bare land (Maps generated by ArcGIS 10.7(https://www.esri.com/en-us/arcgis/products/arcgis-desktop/overview)).