2008
DOI: 10.1051/limn:2008012
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Review on the major ecosystem impacts caused by damming and watershed development in an Iberian basin (SW-Europe): focus on the Guadiana estuary

Abstract: The Guadiana estuary (Iberian Peninsula, Europe) has low agriculture, industry and urban pressure, unlike other major Iberian estuaries; however, this situation is about to change. The Alqueva dam was constructed at 150 km from the river mouth, creating one of the biggest artificial lakes in Europe, which will support 110 000 ha of irrigation areas. Moreover, the estuarine margins are suffering increased human pressure. The risks that the Alqueva dam will pose to the downstream ecosystems, mainly to the estuar… Show more

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Cited by 45 publications
(32 citation statements)
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“…Dams were primarily built to supply humans with fresh water, either for direct consumption or for agriculture. Later, reservoirs were also built to produce hydroelectric power and to regulate river flow 29 . It has been estimated that in the world at present there are around 45,000 dams with a water column depth of more than 15 meters 30 .…”
Section: Introductionmentioning
confidence: 99%
“…Dams were primarily built to supply humans with fresh water, either for direct consumption or for agriculture. Later, reservoirs were also built to produce hydroelectric power and to regulate river flow 29 . It has been estimated that in the world at present there are around 45,000 dams with a water column depth of more than 15 meters 30 .…”
Section: Introductionmentioning
confidence: 99%
“…Industrial agriculture and especially mining activities in the area necessarily imply inputs of organic and inorganic ions and compounds, which accumulate in sediments. Thus it is important to know the salt composition of the interstitial water, which is interchanged with the water column depending mainly on the pH [5][6][7] . Considering the great importance of the hydrology, the alterations caused by humans, especially due to the construction of dams, would have ecological consequences in these systems 2 .…”
Section: Introductionmentioning
confidence: 99%
“…After 1980, with the uprising consciousness of environmental protection, people became cautious of the construction of water transfer projects and a series of reports came out concerning the negative ecological impacts of both construction and operation of these projects (Davies et al, 1992;Meador, 1992;Nardini et al, 1997). Since then, countries all over the world have begun to conduct environmental impact assessment of water transfer projects, and carried out thorough research on related environmental issues and ecological influence (Graf, 2006;Morais, 2008;Braatne et al, 2008;Kittinger et al, 2009;Baran and Myschowoda, 2009;Growns et al, 2009;Wu et al, 2010;Olden and Naiman, 2010). At the same time, laws and regulations in terms of the construction and operation of water transfer projects were published so as to mitigate and even prevent the ecological and environmental problems (Yang, 2003;Wang, 2009).…”
Section: Introductionmentioning
confidence: 99%
“…What is more, the environmental and ecological influence of project under the background of global climate change is extremely complex; thus, there is considerable uncertainty. Present relevant studies are short of global, comprehensive and systematic research as they are focused on a certain aspect of the environmental influence, such as the hydrological situation, pollutant transport patterns and biodiversity (Morais, 2008;Hu et al, 2008;Koutsos et al, 2010;Ouyang et al, 2011), or they are targeted at a certain area, such as the water-output area, water-intake area and the river delta (Xu et al, 2011;Ligon et al, 2011;Restrepo and Cantera, 2011). The climate change aspect has been inadequately treated in the environmental impact assessment of large water transfer projects.…”
Section: Introductionmentioning
confidence: 99%