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Re: to reduce evaporation from lakes

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  • karmayog.org NEW
    Evaporation Control in Reservoirs report by Central Water Commission http://cwc.gov.in/main/downloads/Evaporation%20Control%20in%20reservoirs.pdf The methods
    Message 1 of 10 , Jun 30 3:09 AM
      Evaporation Control in Reservoirs

      report by Central Water Commission

      http://cwc.gov.in/main/downloads/Evaporation%20Control%20in%20reservoirs.pdf

      The methods generally used or being tried are broadly:
      i) wind breakers
      ii) covering the water surface
      iii) reduction of exposed water surface
      iv) underground storage of water
      v) integrated operation of reservoirs
      vi) treatment with chemical Water Evapo Retardants 

      Wind Breakers
      Wind is one of the most important factors which affect rate of evaporation loss from water
      surface. The greater the movement of air over the water surface, greater is the evaporation loss.
      Planting of trees normal to windward direction is found to be an effective measure for checking
      of evaporation loss. Plants (trees, shrubs or grass) should be grown around the rim of tanks in a
      row or rows to act as wind breaker. These wind breakers are found to influence the temperature,
      atmospheric humidity, soil moisture, evaporation and transpiration of the area protected.
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