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Is the mechanical construction of a series of steps on steep slopes to enable crops to be grown.
Advantages of terracing
Procedure used in making terracing
Types of terraces
Bench terraces are made of very steep slopes where both soil conservation and water conservation measures are needed so as to control erosion but at the same time trapping water and later using it for irrigation.
Disadvantages of bench terraces
It needs skilled labour to construct
Bench terraces are very expensive to construct because they need heavy machinery.
These are constructed to protect arable land that lies below a very steep slope from excessive run off water from higher areas. They have a wide but shallow channel that may be planted with grass to avoid erosion. On the lower side of the channel bunds are constructed and may be planted with grass to prevent water from moving further down the slope.
Crops will then be grown in the field below;
Narrow based ridge terrace
These are constructed on moderate slopes with deep soils. Narrow channels are constructed on either side of the bund or ridge to carry away excess water. The bund may be used for growing crops.
Broad based ridge terraces
These are constructed on more gently to carry off excess water. Both the bund and the channel can be used for growing crops (Water loving crops).
Disadvantages of terracing
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