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Tordera river basin, Spain

tordera map
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Case Study coordinators: Annelies Broekman and Diana Pascual

Tordera River Basin is a non-regulated river basin located in the northern part of Catalonia (NE Spain). Tordera presents typical Mediterranean conditions with a high environmental diversity, ranging from the mountain tops of the headwaters to the delta area.

It is a forested river basin (81%) with 10% of the land used for agriculture, which is concentrated in the intermediate and low sections, especially in the delta plain. Industry is also present, mainly in the intermediate section. Its coastal strip presents a high demographic pressure, both seasonal and permanent.

Tordera society

CSRB Challenges

  • Due to the effects of climate change river flows will decrease, especially in the upper parts of the Basin. Flow regime will also shift into new patterns, affecting flora and fauna of the basin.
  • Humid forests in the upper part of the basin will suffer the effects of climate change. General tendencies indicate carbon uptake by forests could change its trend from being a sink into becoming a carbon source.
  • Agriculture in the basin will face the effects of climate change too. Agronomic calendar changes will induce different crop and irrigation water management.
  • For the people living in the basin, climatic conditions will become more uncomfortable. Higher temperatures may also increase domestic water consumption levels.