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Any agricultural system which includes planting, or encouraging, trees. Tree roots can bind soil and limit soil erosion, deep-rooted trees can tap new nutrient sources, leguminous trees can fix atmospheric nitrogen and improve soil fertility, leaf litter can add organic matter, and tree cover can moderate temperatures; trees may also provide food, fodder, firewood, and timber. See Dove (2004) Agroforest. Sys. 61.

Subjects: Biological Sciences.

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