By including diversity within the landscape, we're able to increase the multifunctionality of the land. Forest farming, for instance, utilizes the understory while boosting plant diversity and providing pollinator services. Slide courtesy of the USDA's National Agroforestry Center.
PHYTOREMEDIATION: describes the treatment of environmental problems (bioremediation) through the use of plants that mitigate the environmental problem without the need to excavate the contaminant material and dispose of it elsewhere. Phytoremediation consists of mitigating pollutant concentrations in contaminated soils, water, or air, with plants able to contain, degrade, or eliminate metals, pesticides, solvents, explosives, crude oil and its derivatives.