The basic philosophy is to regard rain water as a source of life rather than as liquid waste. Ecologic management of rain water is an alternative to traditional management methods. Its philosophy is based on reducing the impact of urbanization on the natural water cycle. Adopting an integrated approach, which incorporates the existing drainage basin, the quality, quantity, volume and velocity of rain water surface run-off, attempts to reduce the negative impact urbanization has on the natural water cycle and maintain or, in some cases, restore, the disrupted ecosystem.

The goals of ecologic management are the following:

  • incorporating rain water management in landscape design;
  • conserving natural water systems within cities;
  • protecting water quality;
  • reducing the drainage coefficient of surface water run-off along hard and impermeable urban surfaces;
  • protecting from flooding phenomena;
  • saving water by collecting and reusing rain water

The techniques applied for the ecologic management of rain water in the cityscape need to be ruled by the following principles:

  1. effectiveness of the practice proposed in removing pollutants;
  2. respecting the pre-existing natural hydrological system;
  3. effective incorporation in the overall landscape design;
  4. creating constructs of high architectural quality and beautiful aesthetic results;
  5. reduced cost of construction and maintenance;
  6. providing additional social benefits;
  7. using vegetation in a creative manner;
  8. promoting an ecologic model that could become a standard for future development;
  9. creating environmental benefits;
  10. acceptance by the public.