3 documents found, page 1 of 1
Water-Sediment Physicochemical Dynamics in a Large Reservoir in the Mediterrane...
Palma, Patrícia; Marchã Penha, Alexandra; Novais, Maria Helena; Fialho, Sofia; Lima, Alexandra; Mourinha, Clarisse; Alvarenga, Paula; Rosado, AnabelaNowadays, 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 wa...
Benthic diatom community dynamics in Mediterranean intermittent streams: Effect...
Novais, Maria Helena; Morales, Eduardo; Marchã Penha, Alexandra; Potes, Miguel; Bouchez, Agnès; Barthès, Amélie; Costa, Maria João; Salgado, RuiThe study of intermittent rivers is a critical and timely issue due to theirworldwide increase, triggered by several causes including climate change. The need to understand the response of intermittent river biota to water intermittency led us to conduct this study using benthic diatoms collected in southern Portugal. Benthic diatomswere explored in terms of assemblages, diversity indices, the Specific Pollutio...
Influence of different land uses on groundwater quality in southern Portugal
Marchã Penha, Alexandra; Chambel, António; Murteira, Martinho; Morais, ManuelaIn Alentejo region, southern Portugal, differences in groundwater samples from six groundwater bodies covered with different land uses were analysed based on the monitoring plan of the Alqueva multi-purpose project, created in the sequence of the construction of the Alqueva Dam on the Guadiana River, in South Portugal. For most of the groundwater bodies there is a statistical significant difference between magn...