impacts of phosphate in south africa
The Effects of Phosphate Fertilizers and Manure on Maize …
The Effects of Phosphate Fertilizers and Manure on Maize Yields in South Western Kenya. J. S. Ademba Kenya Agricultural Research Institute ... Maize response to three high analysis phosphate fertilizers in some soils of East Africa. Part 1. Effects on growth. E. Afr. Agric. and For. Journal, 43: 75–83. Google Scholar. Okalebo, …
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Impacts and Repercussions of Price Increases on the Global …
However, as the Russia-Ukraine war continues, the impact of fertilizer prices could likely take a heavier toll on 2023 agricultural production decisions, domestically and abroad. This report examines the global fertilizer landscape, with a focus on the three main macro-fertilizer groups—nitrogen, phosphorus, and potassium (NPK).
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Eutrophication: Causes, Consequences, and Controls in …
With that said, fish-centric biomanipulation effects on water quality are typically short-lived (i.e., weeks to months), most obvious in small, easily-managed systems (i.e., ponds), and impacted ...
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THE SOCIO-ENVIRONMENTAL IMPACT OF WHITE …
THE SOCIO-ENVIRONMENTAL IMPACT OF WHITE PHOSPHOROUS AMMUNITION IN SOUTH LEBANON ANALYSIS AND RISK MITIGATION ... NOVEMBER 2023. 2 Cover Page Picture ©AP/Hussein Malla – White phosphorus airstrike in Al Bustan, Lebanon Acknowledgement The authors would like to acknowledge the help of Dr. Najat Saliba, …
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Potential radiological impact of the phosphate industry in South Africa
South Africa has about 2.3% of the world phosphate reserves and produces 2.3 million tonnes of phosphate rock per year, of which about 16% is exported (IAEA, 2013). The Phalaborwa Igneous Complex in the Lowveld region of South Africa is underlain by Archaean granite which contains remnants of highly altered sedimentary, …
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Poultry Production in Africa: Impacts of Climate Change
Africa is the most affected continent by predicted effects of climate change, although it emits the least GHGs (Ngaira, 2007; Abioja and Abiona, 2020). A predicted rise in temperature of 2–6°C is expected over Africa within the next 100 years, with a rise of 1.5–3.0°C by 2050, which is more severe than other regions (Abioja and Abiona, 2020).
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Anthropogenic impacts and implications for ecological restoration in
The economy of South Africa declined towards the end of the apartheid period (1980s) as a result of international sanctions and social unrest (Jones and Inggs, 2003). Economic decline continued after apartheid ended (1994) as a result of rapid population growth that flooded the job market with people poorly educated under …
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The impact of phosphorus on projected Sub-Saharan …
The impact of phosphorus on projected Sub-Saharan Africa food security futures Daniel Magnone 1, ... Africa's population was food insecure—and as high as 90% for some countries2.
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The rise and fall of dissolved phosphate in South African …
• Phosphate levels in South African fresh water have risen steadily with time, but recently have shown a sharp decrease, which cannot easily be attributed to one phosphate …
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Understanding phosphorus: global challenges and …
Explore the environmental impact of phosphorus and learn about global initiatives addressing its challenges, including UNEP's efforts for sustainable solutions. Commonly used in fertilizers, phosphorous …
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Potential radiological impact of the phosphate industry in South Africa
Potential radiological impact of the phosphate industry in South Africa on the public and the environment (Paper 1) J Environ Radioact. 2020 Jun;217:106214. doi: 10.1016/j.jenvrad.2020.106214. ... which is usually stockpiled and might impact the surrounding environment. The presented study aims to assess the natural radioactivity …
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Global phosphorus shortage will be aggravated by soil erosion
A very high P loss (10 to 20 kg ha −1 yr −1) is estimated for parts of Southern Africa (South Africa, Madagascar, Tanzania) and South America (Bolivia) and a high loss (5–10 kg ha −1 yr ...
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Brief Overview of Potential Ecosystem Impacts of Marine Phosphate
Semantic Scholar extracted view of "Brief Overview of Potential Ecosystem Impacts of Marine Phosphate Mining in the Western Cape, South Africa" by J. Currie. Skip to search form Skip to main content Skip to account menu. Semantic Scholar's Logo. Search 220,677,874 papers from all fields of science ...
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Elandsfontein phosphate project, South Africa – update
Name of the Project Elandsfontein phosphate project. Location Saldanha Bay, in the Western Cape, South Africa. Project Owner/s Kropz (70%), African Rainbow Capital, or ARC (25%), and a smaller ...
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Global phosphorus supply chain dynamics: Assessing regional impact …
Fig. 2 shows phosphate fertilizer requirement tied to population per world region (a) and the population dynamics (b). South Asia (SA), and Latin America and the Caribbean (LAC) are the regions where most growth in P requirement will occur in the future. North Africa and West Asia (NAWA) and Sub-Saharan Africa (SSA) will also …
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ASSESSING THE DESIRABILITY OF MARINE PHOSPHATE …
phosphate deposits and to provide an understanding of the industries which are dependent on the phosphate supply in South Africa. ii. Develop a substance flow analysis (SFA) of phosphate in South Africa, documenting the major flows of phosphate back to nature, including accumulation in farmlands. iii. Summarise the environmental impacts of releases
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Soil microbes and associated extracellular enzymes largely impact …
The effect of phosphate fertilization and on nitrogen and phosphate cycling enzymes; (a) β-Glucosaminidase activity, (b) N reductase activity, (c) Acid phosphate activity and (d) Alkaline ...
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The impact of phosphorus on projected Sub-Saharan …
Shared socioeconomic pathways (SSPs) indicate that only a sustainable (SSP1) or a fossil fuelled future (SSP5) can improve food security (in terms of price, availability, and risk of …
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(PDF) Invasive Alien Plant Species In South Africa: Impacts …
Bethlehem, L 2002. Sustainable Forest Management in South Africa: Government Perspective. South African Forestry Journal 193:1-4. Bridges, DC 1994. Impact of Weeds on Human Endeavours. Weed Technology 8,10:392-395. Bromilow, C 2001. Problem Plants of South Africa: A Guide to the Identification and Control of more than 300 …
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The rise and fall of dissolved phosphate in South African rivers
Pillay M. Detergent phosphorus in South Africa: Impact on eutrophication with ... Dissolved phosphate levels in South Africa's rivers increased from 0.016 mg P/L in 1985 to a high of 0.036 mg P/L ...
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Fertilizers for food and nutrition security in sub …
Notably, use of mineral fertilizers has the potential to counteract soil degradation in SSA; it drives an increased agricultural production required to feed the rising population while sustaining the …
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Potential radiological impact of the phosphate industry in South Africa
1. Introduction. Phosphate rock is mined on a large scale as a source material for fertilizers and other phosphorus containing products, such as phosphoric acid and gypsum (UNSCEAR, 2008).South Africa has about 2.3% of the world phosphate reserves and produces 2.3 million tonnes of phosphate rock per year, of which about …
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South Africa Stone Quarrying, Clay and Sandpits, and …
Dublin, March 01, 2024 (GLOBE NEWSWIRE) -- The "Stone Quarrying, Clay and Sandpits, and Mining of Phosphate in South Africa 2023" report has been added to ResearchAndMarkets's offering.. South ...
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The impact of black wattle encroachment of indigenous grasslands on
In South Africa, scientists are increasingly recognizing the potential threats and impacts of invasive alien species on indigenous vegetation, and particularly the ecological services that could be lost as a result (Le Maitre et al. 2000).Black wattle (Acacia mearnsii, De Wild.) is a fast growing invasive alien tree species, introduced into South …
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Phosphate Rock: Origin, Importance, Environmental Impacts …
Given that the environmental impacts of phosphate mining and Pfertilizer production and application are commonly associated with elevated concentrations of trace metals (e.g., U and Cd) and ...
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BRIEF OVERVIEW OF POTENTIAL ECOSYSTEM IMPACTS …
In this report, the potential effects of marine phosphate (or any similar bulk sediment) mining operations on marine ecosystems in the Western Cape province of South Africa …
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Climate change impacts and adaptation in South Africa
BOX LONG TERM ADAPTATION SCENARIOS (LTAS) PROJECT. South Africa's 2011 national policy position on climate change emphasizes that socio-economic risks resulting from a range of emission scenarios need to be better understood and quantified in order to inform planning and practice. 3 In an effort to address the problem, …
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Marine phosphate mining
Prospecting for marine phosphate in South Africa In 2012 and 2014, the Department of Mineral Resources granted three prospecting rights for marine phosphate to Green Flash Trading 251 (Pty) ... Seabed mining in the Green Flash Trading areas will negatively impact on South Africa's only MSC fishery.
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The rise and fall of dissolved phosphate in South …
Eutrophication is large-scale autotroph growth following nutrient enrichment and has several consequences, including loss of biodiversity, oxygen depletion, taste/odour generation and algal toxin...
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Fact sheets
Marine phosphate mining – South African context. Specific information on the status of marine phosphate mining in South Africa, alongside information on potential socio-economic and environmental risks and impacts if mining were to proceed in these areas. Seabed mining a global threat to our oceans – International context
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