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Der Wasserhaushalt der Erde Schwankungen und Eingriffe

  • H. Flohn
Conference paper
Part of the Verhandlungen der Gesellschaft deutscher Naturforscher und Ärzte book series (NATURFORSCHER, volume 107)

Abstract

The recently revised figure for the global water balance is discussed and some examples are given of its regional fluctuations due to man-made modifications: irrigation, industrial usage, clearing of natural vegetation for arable land, draining of swamps, and exploitation of groundwater reserves, not to mention increased domestic consumption. Demand for agricultural and industrial purposes is expected to increase the man-made fraction of continental evaporation from its present nearly 3 percent to 10 percent in about 30 years, and 50 percent in about 70 years: this will accelerate the continental freshwater turnover. Since freshwater reserves are insufficient, desalinization of seawater will soon become necessary, inducing a still larger increase in the energy consumption rate, bringing with it the risk of large-scale, irreversible climatic modifications.

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Copyright information

© Springer-Verlag 1973

Authors and Affiliations

  • H. Flohn
    • 1
  1. 1.Meteorologisches Institut der Universität BonnGermany

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