Agroforestry systems

Forms of land-use and land-management, in which trees or shrubs are used together with crop and/or animals in the same area, simultaneously or in a sequence of time. They must include at least one tree or shrub forest species, which can be combined with one or more crops and/or animal species, because this forest species provides useful products to the producer, as well as playing an essential role in maintaining soil fertility.

Agroforestry Systems (AFSs) mimic the vegetation cover of the forest, with diversification being its essence and foundation. This perspective favors the productivity recovery of degraded soils through implanted tree species, which naturally fertilize the soil, reducing the use of external inputs and, thus, the production costs, and increasing the economic efficiency of the productive unit. In addition, the greater diversification represents more marketable products, favoring a more harmonic generation of income in time. This context is very suitable for small family farming.

Agroforestry systems can be categorized into:

Silvicultural systems – a combination of trees or shrubs with agricultural species.

Silvopastoral systems – a combination of trees or shrubs with herbaceous forage plants and animals.

Agrosilvopastoral systems – animal husbandry or management in silvi-agricultural consortia.

There are several possible techniques for using AFSs. The main ones are windbreaks, protection shelters, hedgerows, Taungya (periodic planting of trees and agricultural crops), alleys (permanent trees in contour lines), agroforestry yards, non-successive agroforestry (trees associated with agricultural crops), and successive agroforestry.

Source: Apremavi – Association for the Preservation of the Environment and Life

Veja também

See also

Diffusion in the oceans

Diffusion in the oceans

The process through which the atmosphere and water continuously exchange molecules of carbon dioxide. The diffusion of carbon dioxide into the oceans accounts for almost half of the carbon extracted from the atmosphere. The colder oceans absorb more CO2 than warmer...



After signing an international treaty, such as the Climate Change Convention or the Kyoto Protocol, a country has to ratify the commitment, often with the approval of its parliament or other legislature. The ratification instrument must be deposited with the UN...



It is the conversion, directly induced by the humans, of land that has not been forested – for a period of at least 50 years – into forested land through planting, sowing, and/or human-induced promotion of natural sources of seeds. This definition is used for...