Walker - 1967 - A geography of Italy

CLIM ATE
In Italy, especially Mediterranean Italy, the availability o f water for plant life
and for domestic, irrigation and industrial uses is often o f such critical importance
Fig. 13. The distribution of aridity (after M. Pinna) (see p. 60)
that it gives particular significance to attempts to express aridity in scientific
terms. Such calculations are beset with practical difficulties; no factor can be
incorporated in the index to offset the capricious nature of the precipitation, and
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