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An extended windbreak of living trees and shrubs established and
maintained for the protection of farmlands over an area larger
than a single farm.

shifting cultivation
Found mainly in the tropics, especially in humid and sub humid
regions. There are different kinds; for example, where a settlement
is permanent, but certain fields are fallowed and cropped
alternately ('rotational agriculture'). In others, whole settlements
move and clear new land once the old is no longer productive. Also
called 'swidden' (Old English for a 'burnt clearing'), used more to
designate the social group, or 'slash-and-burn', so-called because
of the operations undergone. Related term: slash-and-burn
system.

silvopastoral system
Any agroforestry system that include trees or shrubs and pastures
and animals. Related term: forest grazing

slash-and-burn system
A kind of shifting cultivation in high rainfall areas where the
cropping period is followed by a fallow period during which grass,
herb, bush or tree growth occurs.

A pattern of agriculture in which existing vegetation is cut,
stacked and burned to provide space and nutrients for cropping;
also called 'swidden' cultivation and shifting cultivation.

strip cropping
Growing two or more crops simultaneously in different bands wide
enough to permit independent cultivation but narrow enough for
the crops to interact agronomically. Related term: zonal
agroforestry system.

Growing crops in a systematic arrangement of strips or bands to
serve as vegetative barriers to wind and water erosion. Related
terms: wind strip, barrier hedge

The practice of growing crops in narrow bands along the contour
in an attempt to reduce runoff, thereby preventing erosion or
conserving moisture.

sustainable development
The management and conservation of the natural natural base,
and the orientation of technological and institutional change, in
such a manner as to ensure the attainment and continued
satisfaction of human needs for present and future generations. It
conserves land, water, plant and animal genetic resources, is