This is the partial English translation of the Finnish website, where you find more information on how hydropower impacts nature, and on how to mitigatate these impacts.

River landscape

The catchment area from the headwaters to the sea is one system for the organisms that live there. Routes for fish migration should be opened up and streams restored, or compensatory channels should be created to ensure good spawning grounds.

This is an imaginary freshwater system in Finland. How do the environmental impacts of hydropower appear in this landscape? Can you find these four rivers?

  • a natural river
  • a constructed river, lower reach
  • a constructed river, upper reach
  • a restored river

Find out the answers on the page « River landscape »

This site introduces the impact of hydropower on nature – welcome! Also availeble: a leaflet « Good to know about hydropower”. Download PDF.


Désolé, cet article est seulement disponible en Finnois. Pour le confort de l’utilisateur, le contenu est affiché ci-dessous dans une autre langue. Vous pouvez cliquer le lien pour changer de langue active.