Salinization refers to the process by which salt accumulates in the soil. This phenomenon occurs when water evaporates from the soil surface, leaving behind dissolved salts. Irrigation practices in arid and semi-arid regions can exacerbate this issue, as irrigation water often contains salts that build up over time. For example, poorly drained agricultural lands in areas with high evaporation rates are particularly susceptible, leading to a concentration of salts near the surface.
The consequences of increased soil salinity are significant for agriculture and environmental sustainability. High salt concentrations can inhibit plant growth by reducing water uptake and disrupting nutrient balance. This, in turn, can lead to decreased crop yields and ultimately render land unsuitable for cultivation. Historically, the mismanagement of irrigation practices has contributed to widespread land degradation and economic hardship in various agricultural regions globally.