Synergistic impact of socio-economic and climatic changes on the ecosystem of a deep dam reservoir: Case study of the Dobczyce dam reservoir based on a 30-year monitoring study

Wilk‐Woźniak, Elżbieta; Krztoń, Wojciech; Górnik, Marek

doi:10.1016/j.scitotenv.2020.144055

Cited by 14 publications

(15 citation statements)

References 47 publications

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“…Ammonium-nitrogen was at the same level in both periods, especially at the selected sites of the Tushka and Abu Simble regions. Similarly, the higher phytoplankton density and total coliform bacteria but lower zooplankton density were found at these sites (i.e., sites [10][11][12][13][14][15]. The comprehensive study of environment of Lake Nasser before operating the Renaissance Dam indicated regional variations in all of the parameters.…”

Section: Discussionmentioning

confidence: 84%

“…) and 5 (13,15) on the eastern and western banks, respectively, with detailed information in Table 1.…”

Section: Najas Marina Subsp Armatamentioning

confidence: 99%

“…(A) (B) Figure 7. Epiphyte density and structure in the post-flood period (A) and the pre-flood period (B) in the main channel of Lake Nasser; the sampling sites concern only the sites in sectors 1 (1, 3), 2 (4, 6), 3 (7, 9), 4 (10, 12) and 5 (13,15) on the eastern and western banks, respectively, with detailed information in Table 1.…”

Section: Fishmentioning

confidence: 99%

“…These important biomarkers of water quality assessment and pollution are known as organisms which are the first to react to any changes and, thus, can provide an early warning signal [13,14]. Regular monitoring should be helpful for better water or catchment management and consequently for maintaining at least good water quality in the context of climate and socioeconomic changes [15].…”

Section: Introductionmentioning

confidence: 99%

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Comprehensive Insight into Lake Nasser Environment: Water Quality and Biotic Communities—A Case Study before Operating the Renaissance Dam

Goher

Napiórkowska‐Krzebietke

Aly

et al. 2021

Water

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This study focused on the monitoring and assessment of aquatic ecosystem functioning based on the abiotic and biotic features of Lake Nasser in the post-flood and pre-flood periods as the last ones before water storing behind the Grand Ethiopian Renaissance Dam. The physicochemical parameters, distribution and structure of biotic communities, including bacteria, phytoplankton, zooplankton, macrophytes, epiphytes and fish were analyzed at 15 sites. The values of most parameters (primarily temperature, total suspended solids, pH, orthophosphates, carbonates, sulphates and some cations) were higher in the pre-flood period, whereas higher values of conductivity, total dissolved solids, total solids, nitrites, nitrates, chemical oxygen demand, bicarbonates and chlorophyll a were recorded in the post-flood period. Cyanobacteria-dominated phytoplankton and total coliform bacteria were more abundant in the pre-flood period, and especially at sites 10–15, whereas higher abundances of zooplankton were recorded in the post-flood period. All these changes in parameters were significantly differentiated, and only the concentrations of dissolved oxygen, biochemical oxygen demand, ammonium and silicates were at similar level in both periods. The study also indicated that environmental factors had affected the macrophyte distribution and the adaptation of the invasive species Myriophyllum spicatum to thrive under different environmental factors in the lake. Besides, macrophytes provided the habitat to other aquatic organisms, especially epiphytes, and also helped maintaining the good water quality, nutrient cycling and stabilizing rivers’ and lakes’ banks. Generally, these conditions were rather favorable for biological processes and fish production.

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Section: Discussionmentioning

confidence: 84%

“…) and 5 (13,15) on the eastern and western banks, respectively, with detailed information in Table 1.…”

Section: Najas Marina Subsp Armatamentioning

confidence: 99%

Section: Fishmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Comprehensive Insight into Lake Nasser Environment: Water Quality and Biotic Communities—A Case Study before Operating the Renaissance Dam

Goher

Napiórkowska‐Krzebietke

Aly

et al. 2021

Water

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“…Dam removal and river restoration were investigated in order to reverse the environmental impacts (Lejon et al, 2009;Beck et al, 2012;Buckner et al, 2018;Birnie-Gauvin et al, 2020). Sustainability assessment, optimum construction and management of dams and reservoirs became crucial concepts (Beck et al, 2012;Chen et al, 2016;Ho and Goethals, 2019;Karami and Karami, 2020;Wilk-Woźniak et al, 2021).…”

mentioning

confidence: 99%

Environmental impact of Aposelemis dam and tunnel water supply project in NE Crete, Greece

Vogiatzi¹,

Loupasakis

2021

geosociety

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The current investigation concerns the impact observed at natural and human environment, due to the implementation of the Aposelemis water supply project, as additional aqueduct of Heraklion and Agios Nikolaos cities, as well as other important tourist areas, in NE Crete, Greece. Aposelemis project is differentiated from standard water supply dam projects, through a special component of an underground tunnel that diverts uphill surface water from Lasithi Plateau into the reservoir. The study concerns the first years of project’s operation, and focuses at four affected areas, namely the Lasithi Plateau upland area, dam’s region, river estuary and water supplied cities. The investigation was based on various site visits, while a significant aspect involves local stakeholders’ observation, opinion and perception on the environmental impact of the project in everyday life, through four detailed questionnaires posed to the affected areas’ population. The recorded consequences were characterized as positive or negative and evaluated according to their size and importance, estimated for the current period and also for the future. Among the main positive effects are urban areas’ drinking water supply and improved upland plateau’s flood water drainage, while among the negative consequences appear multiple water resources’ impacts and feelings of downstream lakeside residents. The investigation indicates the initial environmental impact and sets the basis for further future research towards sustainability.

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From the source to the reservoir and beyond - tracking sediment particles with modeling tools under climate change predictions (Carpathian Mts.)

Wilk

Szlapa

Hachaj

et al. 2021

Preprint

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Synergistic impact of socio-economic and climatic changes on the ecosystem of a deep dam reservoir: Case study of the Dobczyce dam reservoir based on a 30-year monitoring study

Cited by 14 publications

References 47 publications

Comprehensive Insight into Lake Nasser Environment: Water Quality and Biotic Communities—A Case Study before Operating the Renaissance Dam

Comprehensive Insight into Lake Nasser Environment: Water Quality and Biotic Communities—A Case Study before Operating the Renaissance Dam

Environmental impact of Aposelemis dam and tunnel water supply project in NE Crete, Greece

From the source to the reservoir and beyond - tracking sediment particles with modeling tools under climate change predictions (Carpathian Mts.)

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