Soil salinity distribution

Soil salinity distribution in the North China Plain in 2020. According to the standards for different soil salinity levels defined by the United States Department of Agriculture (USDA), soil salinity is divided into four categories: Slightly saline, Moderately saline, Strongly saline, and Very strongly saline. The data were derived from the survey and interpretation results of the project team conducted in October 2020. The dataset is in vector format and can be edited and analyzed using GIS software such as ArcGIS.