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| | | | | Rainfall Variability | |
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| Rainfall variability |
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Rainfall variability at a time
scale from years to days is as much a characteristic of climate as
the total amounts recorded.
Low values, however, do not necessarily lead to drought, nor is drought
necessarily associated with low rainfall. Agricultural drought occurs
when water supply is insufficient to cover crop or livestock water
requirements. In addition to reduced rainfall, a number of factors
may lead to agricultural drought, some of them not always obvious.
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