Duero river basin hub

At a glance

  • 79,000 km2

    spanish surface of the Duero river basin

  • 80 / 20

    80% of its territory in Spain, 20% in Portugal (Transboundary river)

  • 618 mm / yr


  • 2.1 million


  • 28.1

    inhabitants / km2 average population density

  • 148

    lt / hab / day water use

  • 49


  • 64

    groundwater bodies

  • 162

    hydroelectric power plants

Water users:

  • Increasing resilience to climate change is the major goal with special emphasis on the risks of droughts and floods.
  • The challenge of achieving sustainable groundwater management is being addressed on several fronts, including an internal working group to analyze and discuss possible policy reforms related to the legal regime for groundwater.
  • Improvement and consolidation of monitoring programmes for the status of water bodies.
  • Understanding the behavior of nitrates in the unsaturated zone and it effects on the saturated zone, is a challenge which is being currently studied.
  • Determine the necessary adaptation of resource-compatible water uses available, once the impacts of climate change have been considered, and with the maintenance of the conditions of good condition of the water bodies.

Main challenges exacerbated by climate change: