Next Article in Journal
A Scientometric Review of Research Status on Unfrozen Soil Water
Next Article in Special Issue
Assessment of the Environmental Impact of Acid Mine Drainage on Surface Water, Stream Sediments, and Macrophytes Using a Battery of Chemical and Ecotoxicological Indicators
Previous Article in Journal
Evaluation of Water Social Service and Comprehensive Water Management Linked with Integrated River Evaluation
Previous Article in Special Issue
Risk Assessment of Irrigation-Related Soil Salinization and Sodification in Mediterranean Areas
Article

Water-Sediment Physicochemical Dynamics in a Large Reservoir in the Mediterranean Region under Multiple Stressors

1
Department of Technologies and Applied Sciences, Polytechnic Institute of Beja, 7801-295 Beja, Portugal
2
ICT, Institute of Earth Sciences, University of Évora, Rua Romão Ramalho 59, 7000-671 Évora, Portugal
3
Water Laboratory, University of Évora, P.I.T.E. Rua da Barba Rala No. 1, 7005-345 Évora, Portugal
4
Renewable Energies Chair, University of Évora, Herdade da Mitra–Valverde, 7000-083 Évora, Portugal
5
Linking Landscape, Environment, Agriculture, and Food Research Unit (LEAF), Instituto Superior de Agronomia, Universidade de Lisboa, Tapada da Ajuda, 1349-017 Lisboa, Portugal
6
Earth Remote Sensing Laboratory-EaRSLab, Science and Technology School, University of Évora, 7000-671 Évora, Portugal
7
Department of Physics, Science and Technology School, University of Évora, 7000-671 Évora, Portugal
8
Department of Biology, Science and Technology School, University of Évora, 7000-671 Évora, Portugal
*
Author to whom correspondence should be addressed.
Academic Editor: Giovanni Libralato
Water 2021, 13(5), 707; https://doi.org/10.3390/w13050707
Received: 23 December 2020 / Revised: 22 February 2021 / Accepted: 25 February 2021 / Published: 5 March 2021
Nowadays, the Mediterranean freshwater systems face the threat of water scarcity, along with multiple other stressors (e.g., organic and inorganic contamination, geomorphological alterations, invasive species), leading to the impairment of their ecosystem services. All these stressors have been speeding up, due to climate variability and land cover/land use changes, turning them into a big challenge for the water management plans. The present study analyses the physicochemical and phytoplankton biomass (chlorophyll-a) dynamics of a large reservoir, in the Mediterranean region (Alqueva reservoir, Southern Portugal), under diverse meteorological conditions and land cover/land use real scenarios (2017 and 2018). The most important stressors were identified and the necessary tools and information for a more effective management plan were provided. Changes in these parameters were further related to the observed variations in the meteorological conditions and in the land cover/land use. The increase in nutrients and ions in the water column, and of potentially toxic metals in the sediment, were more obvious in periods of severe drought. Further, the enhancement of nutrients concentrations, potentially caused by the intensification of agricultural activities, may indicate an increased risk of water eutrophication. The results highlight that a holistic approach is essential for a better water resources management strategy. View Full-Text
Keywords: Alqueva reservoir; climate variability; land cover/land uses; water-sediment dynamics Alqueva reservoir; climate variability; land cover/land uses; water-sediment dynamics
Show Figures

Figure 1

MDPI and ACS Style

Palma, P.; Penha, A.M.; Novais, M.H.; Fialho, S.; Lima, A.; Mourinha, C.; Alvarenga, P.; Rosado, A.; Iakunin, M.; Rodrigues, G.; Potes, M.; Costa, M.J.; Morais, M.; Salgado, R. Water-Sediment Physicochemical Dynamics in a Large Reservoir in the Mediterranean Region under Multiple Stressors. Water 2021, 13, 707. https://doi.org/10.3390/w13050707

AMA Style

Palma P, Penha AM, Novais MH, Fialho S, Lima A, Mourinha C, Alvarenga P, Rosado A, Iakunin M, Rodrigues G, Potes M, Costa MJ, Morais M, Salgado R. Water-Sediment Physicochemical Dynamics in a Large Reservoir in the Mediterranean Region under Multiple Stressors. Water. 2021; 13(5):707. https://doi.org/10.3390/w13050707

Chicago/Turabian Style

Palma, Patrícia, Alexandra M. Penha, Maria H. Novais, Sofia Fialho, Ana Lima, Clarisse Mourinha, Paula Alvarenga, Anabela Rosado, Maksim Iakunin, Gonçalo Rodrigues, Miguel Potes, Maria J. Costa, Manuela Morais, and Rui Salgado. 2021. "Water-Sediment Physicochemical Dynamics in a Large Reservoir in the Mediterranean Region under Multiple Stressors" Water 13, no. 5: 707. https://doi.org/10.3390/w13050707

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop