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Wyświetlanie 1-4 z 4
Tytuł:
Spór o zasoby wodne Nilu w środkowej i północno-wschodniej Afryce. Krótki zarys problemu
A dispute about the Nile water supplies in the central and north-east Africa: a short sketch of the problem
Autorzy:
Dzhantamirov, Akhmed
Powiązania:
https://bibliotekanauki.pl/articles/567012.pdf
Data publikacji:
2010
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie. Instytut Nauk Politycznych
Tematy:
Nile river
Egypt
Conflicts
Opis:
Rivers have always been in great importance in the process of arising and developing the human civilisation. Many ancient cultures were very powerful because of the huge rivers systems. Such civilizations as Egypt, Mesopotamia, India and China came into being in the grand rivers valleys (Nil, Tiger, Euphrates, Indus, Ganges, Yangtze and Huang He). Nowadays those rivers also play the vital role because of the fact that of its state and affluence mainly depends the economic stability and in that connection depends also the politic stability in the countries that those rivers flow through. Those dependences and connections between people and rivers were best characterised by the Greek historian Herodotus in his saying "Egypt is a gift from the Nile". Contemporary domestic and international rules of using the rivers resources are regulated by the law rules. The international law rules mainly deal with law classification and the division of the international rivers, water transport on those rivers and the methods of making out the rivers boundaries. Determining the international law rules, effectively regulating the exploitation of the international rivers, face many obstacles. The reason of this situation are differences in exploiting the rivers resources in particular States, which depends on many aspects (economic, geographical, cultural, etc.). The very best example of the complexity of the international rivers systems matter is the Nile river. Present-da y, for the Nile's drainage basin states, establishing the new international law regulations and the arrangements concluding the rational exploitation and division of the rivers resources is the main problem. In the light of the II article of the 1966 Helsinki Rules on the Uses of the Waters of International Rivers, an international drainage basin is a geographical area extending over two or more States determined by the watershed limits of the system of waters, including surface and underground waters, flowing into a common terminus. According to this criterion, ten States count among drainage basin of the Nile river (those States are as follows: Egypt, Sudan, Ethiopia, Eritrea, Burundi, Ruanda, Kenya, Uganda, Tanzania and the Democratic Republic of Congo. Those States are now developing and theirs weak national economies are based on agriculture. The Nile as one of the biggest and most resourceful river on the world, is a great opportunity for those countries to develop. Unfortunately, present international legal system does not allow to exploit the Nile’s water resources in optimal and fair way, because this system does not embrace most of the States of the drainage basin. Such situation cause conflicts and tensions in relations between those States.
Źródło:
Forum Politologiczne; 2010, 10 - Przestrzeń i granice we współczesnej Afryce; 391-402
1734-1698
Pojawia się w:
Forum Politologiczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Biodiversity of zoosporic fungi in polluted water drainages across Niles Delta region, Lower Egypt
Autorzy:
Ali, E.H.
Powiązania:
https://bibliotekanauki.pl/articles/67773.pdf
Data publikacji:
2007
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
biodiversity
zoosporic fungi
fungi
polluted water
water pollution
drainage
Nile River
Lower Egypt
Egypt
Nile Delta
Opis:
Thirty-four identified in addition to five unidentified species appertaining to ten genera of zoosporic fungi were identified and isolated from eighty four polluted water samples, which were randomly collected from different polluted sites of the water drainages along the Niles Delta in Lower Egypt. Baiting sesame seeds culture technique was employed at 20±2°C for the recovery of zoosporic fungi. The genera; Pythium and Saprolegnia (8 and 7 zoosporic fungal species, respectively) showed the broadest spectra of species diversity whereas Aqualinderella was only represented by one species (A. fermentans). Saprolegnia delica and Dictyuchus carpophorus(the greatest fungal populations) were the most dominant isolated zoosporic fungal species where they were highly occurred especially at the hyperpolluted waters with the heavy metals. These two species could be considered as indicators for the response of the structure and function of microbial communities for water pollution. Several zoosporic fungal species were rarely encountered. Both Aqualinderella fermentansand Pythium rostratumwere recovered in moderate frequency of occurrence. Water samples which had high concentrations in heavy metals were the poorest in the species diversity of zoosporic fungi. Despite that, fungal species belonging to the family Saprolegniaceaeflourished in hyper polluted water samples whilst those belonging to the family Pythiaceae predominated in more diluted water samples. Also, the prevalent species; S. delica andD. carpophoruswere not affected by heavy metals concentrations being as indicators for water pollution with the heavy metals. pH values of the polluted water samples had no influence on the occurrence of zoosporic fungi. Water samples characterized by high organic matter content and low total soluble salts were the richest in zoosporic fungal species.
Źródło:
Acta Mycologica; 2007, 42, 1
0001-625X
2353-074X
Pojawia się w:
Acta Mycologica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Exposure assessment of heavy metals pollution enriched in core sediment samples of river Nile, Aswan, Egypt
Autorzy:
Fawzy, E.M.
Rashed, M.N.
Soltan, M.E.
Powiązania:
https://bibliotekanauki.pl/articles/9993.pdf
Data publikacji:
2017
Wydawca:
Fundacja na Rzecz Młodych Naukowców
Tematy:
exposure assessment
heavy metal
environment pollution
core
sediment
Nile River
Aswan city
Egypt
Opis:
The river Nile is a dominating physical feature of the north- eastern part of the African continent, covering areas exhibiting varieties and contrasts in topography, climate vegetation and people. So, in this study, we estimated the contamination of the Nile sediment with some major and trace heavy metals in core samples which can cause some undesirable health effects. Concentrations of all elements shows that the maximum enrichment is found in the top subsamples, while the most elements shows low contents in the lower layer reflecting the impact of human activity on the sediment contents. Different normalizing methods were used, i.e. geoaccumulation (Igeo) and enrichment factor (EF), for the influence of the natural variability in sediment mineralogy and to assess whether the concentrations observed in surface sediment represent background or contaminated levels. The study has also shown the importance of different sediment characteristics in spatial distribution of heavy metals in the sediments of river Nile. To protect the ecological system of river Nile watershed, industrial mining and agricultural activities along river stream should to be strictly regulated.
Źródło:
Environment, Earth and Ecology; 2017, 1, 1
2543-9774
2451-4225
Pojawia się w:
Environment, Earth and Ecology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
GRAND ETHIOPIAN RENAISSANCE DAM AND THE RISK OF A WAR IN THE HORN OF AFRICA
Autorzy:
Popescu, Alba Iulia Catrinel
Powiązania:
https://bibliotekanauki.pl/articles/483852.pdf
Data publikacji:
2017
Wydawca:
Wyższa Szkoła Biznesu i Przedsiębiorczości w Ostrowcu Świętokrzyskim
Tematy:
Nile River
Blue Nile
Grand Ethiopian Renaissance Dam
Ethiopia
Egypt
Muslim Brotherhood
Sudan
China
Horn of Africa
War
Migration
Opis:
In the climate change context, controlling water sources is one of the most explosive challenges to the stability of the security environment. In its quasitotality, human civilization was born in the basins of the great rivers, which provided humans with both the basic survival and development resources and natural protection against invasions. Such a watercourse is the Nile, in whose basin the great Egyptian, Nubian and Ethiopian civilizations were born. If, until recently, Egypt was the main beneficiary of the Nile's ”gifts“, Grand Ethiopian Renaissance Dam (GERD) project, still in construction on the Blue Nile, will radically change the status quo in region. How will GERD going to influence the regional hydro-policy? Is there any risk for a regional war outbreak? And, if the answer to the previous question is a positive one, what could be the impact of an Egyptian-Ethiopian conflict on regional security?
Źródło:
Ante Portas – Studia nad Bezpieczeństwem; 2017, 2(9) Security Issues in Sub-Saharan Africa; 121-145
2353-6306
Pojawia się w:
Ante Portas – Studia nad Bezpieczeństwem
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-4 z 4

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