Natural and anthropogenic influences in the northeastern coast of the Nile delta, Egypt

Banna, Mahmoud M. El; Frihy, Omran E.

doi:10.1007/s00254-008-1434-6

Cited by 26 publications

(13 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Originally part of the main Lake Manzala, this area was isolated from it by the construction of a new coastal road along an embankment parallel with the coast. The area has now been extensively subdivided into small ponds for fish farming which is also practised elsewhere within Lake Manzala (El Banna & Frihy, 2008;Ahmed et al, 2009). Other parts of this area have been developed for other uses including building and refuse disposal.…”

Section: Lake Manzalamentioning

confidence: 99%

Hydrodynamic-ecological model analyses of the water quality of Lake Manzala (Nile Delta, Northern Egypt)

et al. 2009

View full text Add to dashboard Cite

Lake Manzala remains the largest of the Nile Delta lakes and has undergone substantial recent changes particularly over the last 30 years due to regulation of freshwater inflows, land reclamation and increasing loads of BOD and nutrients. The latter are particularly associated with polluted drains flowing into the lake. An increasing fraction of the N load may also come from the expanding fish farming industry within and around the lake. Over the past 20-25 years, the N load from the drains has increased three times whilst the P load has remained approximately constant. This is despite a 40% reduction in freshwater inflows due to diversion of water towards the Sinai for land development. As a result of these changes, the concentration of total N in the drains has increased 4.5 times while the total P concentration has increased by 50% over the same period. Increases in nutrient concentrations can be attributed to increase in the use of fertilizer combined with an expanding population served by sewers, improved living standards and increased industrial production. Nutrient enrichment has resulted in declining water quality and eutrophication, especially in the southern parts of Lake Manzala. A combined hydrodynamicecological model has been set up for the lake and is used to analyse the development of water quality as a function of the load of organic material and nutrients. Model results show that 86% of the N load and 59% of the P load are retained within the lake. Despite the efficient treatment of wastewater by the lake ecosystem, approximately 6,000 tonnes of N and 1,300 tonnes of P are exported to the Mediterranean through the two main lake-sea connections. This nutrient export has important implications for coastal fisheries production. The present investigation suggests that the current anthropogenic nutrient load to the coastal zone exceeds that of pre-Aswan High Dam conditions despite large reductions in the annual pulse of water and nutrients brought about by the dam. A series of model simulations with reduced nutrient load are investigated in order to identify the conditions required to enable the propagation of vegetation throughout the lake. Submerged rooted vegetation is used as an indicator for water quality as it needs light for growth and in polluted, eutrophicated waters turbidity increases hampering vegetation growth. Simulation results indicate that the nutrient load has to be reduced to approximately 25% of the present loads if submerged rooted vegetation is to become re-established in the more polluted south eastern parts of the lake.

show abstract

Section: Lake Manzalamentioning

confidence: 99%

Hydrodynamic-ecological model analyses of the water quality of Lake Manzala (Nile Delta, Northern Egypt)

et al. 2009

View full text Add to dashboard Cite

show abstract

“…The pre-historic ND morphology included beach sand, which blanketed the ND coastlines, brackish water deposits, which accumulated in lagoons behind the beach, and alluvial silt and sand along the Nile channels and farther landward into the central ND. Since then, the ND has been intensively cultivated, leading today to substantial greening relative to the ambient desert conditions, which are characterised by large evaporation and minimal rainfall (El-Banna and Frihy, 2008). Since then, the ND has been intensively cultivated, leading today to substantial greening relative to the ambient desert conditions, which are characterised by large evaporation and minimal rainfall (El-Banna and Frihy, 2008).…”

Section: Introductionmentioning

confidence: 99%

“…The north ND consists of 240 km of sandy beaches, and the mid-Delta has cultivated areas with field crops and vegetables (El-Banna and Frihy, 2008). The north ND consists of 240 km of sandy beaches, and the mid-Delta has cultivated areas with field crops and vegetables (El-Banna and Frihy, 2008).…”

Section: Introductionmentioning

confidence: 99%

Impacts of the Nile Delta land‐use on the local climate

Giannakopoulou

Toumi

2012

Atmospheric Science Letters

View full text Add to dashboard Cite

This is a numerical study of the effects of the Nile Delta (ND) man-made greening on local climate. We compared a control simulation, which employs the present-day ND vegetation, with a desertification experiment. It was found that the low surface albedo of the agricultural ND increases net radiation, which in turn raises potential evapotranspiration (PET). This suggests that agricultural use increases the water demand by enhancing PET. Non-local effects are also observed on a frontal system over the eastern Mediterranean Sea that shifted farther away from the coast. This shift is attributed to a stronger land breeze in the present-day land-cover.

show abstract

“…For instance, using GIS to assess landscape dynamics also starting from digital sources (e.g. photo archives) (Popa, & Enache, 2016), using geo-tagged photos collected from Flickr and proposing a geo-clustering algorithm (Spyrou et al, 2017), using photographs depicting the urban landscape as a method for social critique (Kim, 2016), using satellite images to monitor and analyse landscape changes (land use and land cover) in coastal areas (Kara et al, 2013, El Banna et al, 2009). In the field of Cultural and Political Geography, research explored the use of propaganda photographs and the promotion of geographical education, while producing nationalist landscapes during the process of nation-building (Tyner et al, 2015), and also explored the use of photos in enabling cultural interaction and understanding (Lemmons et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Meaningful Learning: Case Studies On The Territorial Identity Of Historical Urban Centres

Fonogea¹,

Fonogea²,

Ciascai³

et al. 2018

The European Proceedings of Social and Behavioural Sciences

View full text Add to dashboard Cite

Engaging university students into meaningful learning activities enables critical thinking and understanding (i.e. active learning), instead of memorising knowledge (i.e. passive learning). In this context, we researched the way students at the M.Sc. level learn, at the specialisation of Regional Planning and Development, in the Faculty of Geography, at Babeş-Bolyai University, in Cluj-Napoca, Romania. The aim of the activity was to discover the best means for students to analyse urban cultural landscapes. We offered them plenty of images (i.e. aerial photos) of a series of historical urban centres in Romania (ClujNapoca, Brașov, Sibiu, Oradea, Timişoara, Bistriţa) and, while working individually, we asked them to analyse the elements of the city centre and of the urban landscape: the features of the square, its arrangement, the features and the functions of the buildings. Students were also asked to use other sources of images (e.g. Google Earth, Google Maps, etc.) to complete the task, and then they used ArcGIS (a specialised software). In the end, we provided them with an observation protocol that they had to complete with the identified urban elements. We concluded that their in-depth analysis, enabled by an observation protocol, determined students' in-depth learning of the evolution characteristic of historical urban centres.

show abstract

Natural and anthropogenic influences in the northeastern coast of the Nile delta, Egypt

Cited by 26 publications

References 13 publications

Hydrodynamic-ecological model analyses of the water quality of Lake Manzala (Nile Delta, Northern Egypt)

Hydrodynamic-ecological model analyses of the water quality of Lake Manzala (Nile Delta, Northern Egypt)

Impacts of the Nile Delta land‐use on the local climate

Meaningful Learning: Case Studies On The Territorial Identity Of Historical Urban Centres

Contact Info

Product

Resources

About