Proposed Solutions to Mitigate Flow Regulation in the Central Part of the Tagus River (Spain)

What is it about?

We investigate changes in flow regime as the river moves downstream, noting that alterations in monthly and extreme flows decrease downstream and have less impact in the lower basin. The inversion of seasonal high and low flows, a significant alteration in the upper reaches, becomes less pronounced further downstream, while the rate of flow change emerges as a key factor in the lower sections. By identifying which variables most influence these alterations, the study allows for more targeted hydrological corrections. As an application of a better definition of the alterations found, hydrological restoration measures are proposed that include a maximum flow limit in the upper part of the basin and a monthly ecological flow regime in the lower section to reduce the most relevant impacts found.

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Why is it important?

Proposal of Enviromental flows for River Tagus at its middle reaches