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Agroforestry is using trees on farms. The World Agroforestry
Centre (formerly ICRAF) defines agroforestry as a dynamic,
ecologically based, natural resources management system that,
through the integration of trees on farms and in the agricultural
landscape, diversifies and sustains production for increased
social, economic and environmental benefits for land users
at all levels. Two varieties of agroforestry are distinguished:
simultaneous and sequential systems. In a simultaneous system,
trees and crops or animals grow together, at the same time
on the same piece of land. These are the systems in which
trees and crops compete most for light, water and nutrients.
Competition is minimized by spacing and other means. Examples
of simultaneous systems are hedges, agroforests, and shaded
crops such as coffee
In sequential systems, crops and trees take turns in occupying
most of the same space. The systems generally start with crops
and end with trees. The time sequence keeps competition to
a minimum. Shifting cultivation is a well-known example of
a sequential system.
Analogue forestry is a methodology that seeks to restore
ecosystems, analogous in architectural structure and ecological
function to the original forest ecosystems that once existed
in the area. It uses a combination of planting, natural regeneration
and re-introduction of flora and fauna. It requires high levels
of management, is labour intensive and offers a great variety
of products (especially non-timber forest products or NFTPs)
all year round.
Agroforestry is dealt with more extensively in the chapter
on sustainable agriculture (REF)
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TBI sources
López
Rojas, B.H. & Rincon Henao, H.D. (1999). Sistemas
Agroforestales Tradicionales en el Guaviare.
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