Research Review on the Improvement and Utilization Technologies of Saline-Alkali Soils

Saline-alkali soil refers to land where excessive soluble salts in the soil lead to increased soil osmotic pressure, affecting the normal growth of plants and crop yields. Saline-alkali soils are widely distributed in arid and semi-arid regions globally, posing severe challenges to agricultural production, ecological environment, and regional economic development. Therefore, the improvement and utilization of saline-alkali soils have become a hot issue of global concern. In recent years, scholars both domestically and internationally have made significant progress in saline-alkali soil improvement technologies, cultivation of salt-tolerant crops, and ecological restoration of saline-alkali soils. This paper reviews relevant literature, analyzing the current research status, existing problems, and future development directions of saline-alkali soil improvement and utilization technologies.