water Article Current and Future Ecological Status Assessment: A New Holistic Approach for Watershed Management André R. Fonseca 1,* , João A. Santos 1,2 , Simone G.P. Varandas 1,3, Sandra M. Monteiro 1,4, José L. Martinho 5,6 , Rui M.V. Cortes 1,3 and Edna Cabecinha 1,4 1 Centre for the Research and Technology of Agro-Environmental and Biological Sciences, CITAB, 5000-801 Vila Real, Portugal;
[email protected] (J.A.S.);
[email protected] (S.G.P.V.);
[email protected] (S.M.M.);
[email protected] (R.M.V.C.);
[email protected] (E.C.) 2 Departamento de Física, Universidade de Trás-os-Montes e Alto Douro, UTAD, 5000-801 Vila Real, Portugal 3 Departamento de Ciências Florestais e Arquitetura Paisagista, Universidade de Trás-os-Montes e Alto Douro, UTAD, 5000-801 Vila Real, Portugal 4 Departamento de Biologia e Ambiente, Universidade de Trás-os-Montes e Alto Douro, UTAD, 5000-801 Vila Real, Portugal 5 Departamento de Geologia, Universidade de Trás-os-Montes e Alto Douro, UTAD, 5000-801 Vila Real, Portugal;
[email protected] 6 Geosciences Center, University of Coimbra, 3030-790 Coimbra, Portugal * Correspondence:
[email protected]; Tel.: +351-936-168-204 Received: 15 September 2020; Accepted: 8 October 2020; Published: 13 October 2020 Abstract: The Paiva River catchment, located in Portugal, integrates the Natura 2000 network of European Union nature protection areas. Resorting to topography, climate and land-use data, a semi-distributed hydrological model (Hydrological Simulation Program–FORTRAN) was run in order to simulate the hydrological cycle of the river and its tributaries.