Global Soil Salinity Disturbance Index

In the context of urban expansion from 2000 to 2020, to quantify the positive and negative effects of urban expansion on soil salinization, we adopted the construction of a Salinity Disturbance Index (SDI) as a judgment indicator. The data includes the mean value of the comprehensive environmental background variables (EBF) from 2000 to 2019, the comprehensive environmental background variables (EBF) in 2020, SDI, and SDI_-1_0_1.