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Books > Earth & environment > Earth sciences > The hydrosphere > Hydrology (freshwater)
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Runoff, Infiltration and Subsurface Flow of Water in Arid and Semi-Arid Regions (Hardcover, 1996 ed.)
Loot Price: R2,896
Discovery Miles 28 960
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Runoff, Infiltration and Subsurface Flow of Water in Arid and Semi-Arid Regions (Hardcover, 1996 ed.)
Series: Water Science and Technology Library, 21
Expected to ship within 10 - 15 working days
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Arid and semi-arid regions can be defined as environments in which
water is the limit ing factor for bio-systems. This means that
survival of life in these regions involves a constant struggle to
obtain this limited commodity and draw the maximum benefit out of
it. However, despite the difficulties for plants, animals, and man
to live in, these regions, they are being utilized more and more
because of the pressure of world population growth. This is
expressed in the expansion of agricultural activities in desert
lands as well as by the formation and rapid growth of urban and
industrial centers. These trends result in a growing demand for
water on the one hand, and the disposal of vast amounts of waste
water, as well as other types of refuse, on the other. Meeting the
first demand, namely, supplying water to the agricultural
communities and urban centers, involves, in many instances, the
over-exploitation and misuse of nat ural water resources. The
surplus of waste water, sometimes highly loaded with toxic
compounds, is likely to cause irreversible damage to the
environment. The geoscientists and engineers face a challenge on
two conflicting fronts. Success on one front, namely, in answering
the full demand for water, may lead to an increase in the pollution
of the environment by waste water."
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