Climate change effects on soil salinity in rainfed maize areas: a case study from South Africa

Abstract In maize fields, few studies have been conducted to identify the temporal trend of soil salinity and formulate optimal irrigation plans under climate change. Therefore, main goals this study were predict changes in over 2022–2050 an supplemental plan preventing a South African rainfed field. The used Global Climate Model (GCM) MPI-ESM1-2-LR obtain future data for area from 2022 2050 applied HYDRUS-1D model project effects these on same period best Two key findings revealed: first, combined use GCMs (i.e., model) soil-water models HYDRUS-1D) was powerful tool trends Second, addition rainfall amount, supplying limited amount equal 8% actual evapotranspiration at mid-season stage growth can significantly reduce (<1.7 dS m−1) enhance moisture change by 2050. These will be useful fields.