How plants reduce the mobilization and migration of contaminated soil?
The major type of soil contaminants include the heavy metals that increases the soil pollution. They are classified as the potentially toxic elements (PTE) that may be disposed into the soil from domestic or industrial sources. Mining operations and use of agrochemical compounds in agriculture aggravates the soil pollution. The potentially toxic elements include barium, cadmium, selenium and zinc that exerts a negative impact in the soil.
An useful method of removing the soil contaminants is phytoremediation. Phytoremediation can be defined as the technique devised to clean the hazardous pollutants from the environment such that it improves the quality of the environment.
The processes involved in the removal of the organic contaminants are: phytostabilization, rhizofiltration, phytodegradation, rhizodegradation and phytovolatilization. The processes that are involved in the removal of the inorganic compounds are phytovolatilization, phytoaccumulation, phytostabilization and rhizofiltration.
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