Halophytes are adapted to obtain water from soil water with a higher osmotic pressure than normal soil water, so they need to be able to accumulate a high concentration of salts in their root cells.

• 盐土植物的渗透压高于土壤，这样就可以从土壤中吸收水分，所以它们的根细胞中积累了高浓度的盐分。