Abstract
One person in every seven lives in an arid environment. The dry lands produce one fifth of the world’s food supplies; they yield one half of the world’s precious and semi-precious metals; they contain the bulk of the world’s reserves of oil and natural gas (Heathcote 1983). Between 1960 and 1984 the populations of arid and semi-arid lands have more than doubled.
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Grove, A.T. (1985). The arid environment. In: Wickens, G.E., Goodin, J.R., Field, D.V. (eds) Plants for Arid Lands. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-6830-4_2
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DOI: https://doi.org/10.1007/978-94-011-6830-4_2
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