scholarly journals Flood Pulsing in the Sudd Wetland: Analysis of Seasonal Variations in Inundation and Evaporation in South Sudan

2012 ◽  
Vol 16 (1) ◽  
pp. 1-19 ◽  
Author(s):  
L-M. Rebelo ◽  
G. B. Senay ◽  
M. P. McCartney
Keyword(s):  
South Sudan ◽  
Open Water ◽  
Flood Pulse ◽  
Economic Benefits ◽  
Floodplain Wetlands ◽  
African Countries ◽  
Ecological Processes ◽  
Development Interventions ◽  
Distribution Of Values ◽  
Baseline Information

Abstract Located on the Bahr el Jebel in South Sudan, the Sudd is one of the largest floodplain wetlands in the world. Seasonal inundation drives the hydrologic, geomorphological, and ecological processes, and the annual flood pulse is essential to the functioning of the Sudd. Despite the importance of the flood pulse, various hydrological interventions are planned upstream of the Sudd to increase economic benefits and food security. These will not be without consequences, in particular for wetlands where the biological productivity, biodiversity, and human livelihoods are dependent on the flood pulse and both the costs and benefits need to be carefully evaluated. Many African countries still lack regional baseline information on the temporal extent, distribution, and characteristics of wetlands, making it hard to assess the consequences of development interventions. Because of political instability in Sudan and the inaccessible nature of the Sudd, recent measurements of flooding and seasonal dynamics are inadequate. Analyses of multitemporal and multisensor remote sensing datasets are presented in this paper, in order to investigate and characterize flood pulsing within the Sudd wetland over a 12-month period. Wetland area has been mapped along with dominant components of open water and flooded vegetation at five time periods over a single year. The total area of flooding (both rain and river fed) over the 12 months was 41 334 km2, with 9176 km2 of this constituting the permanent wetland. Mean annual total evaporation is shown to be higher and with narrower distribution of values from areas of open water (1718 mm) than from flooded vegetation (1641 mm). Although the exact figures require validation against ground-based measurements, the results highlight the relative differences in inundation patterns and evaporation across the Sudd.

scholarly journals The alien flora of Sudan and South Sudan: taxonomic and biogeographical composition

2021 ◽  
Author(s):  
Ali Omer ◽  
Maha Kordofani ◽  
Haytham H. Gibreel ◽  
Petr Pyšek ◽  
Mark van Kleunen
Keyword(s):  
Alien Species ◽  
South Sudan ◽  
Plant Invasions ◽  
Life Forms ◽  
Alien Plants ◽  
African Countries ◽  
Alien Flora ◽  
Result Show ◽  
Perennial Herbs ◽  
Disturbed Habitats

AbstractStudies on plant invasions depend on local and regional checklists of the alien flora. However, global overview studies have shown that some regions, including many African countries, remain understudied in this regard. To contribute to filling this gap, here we present the first checklist of alien plants of Sudan and South Sudan (the Sudans). We analysed the taxonomic and geographical composition of the species on this list. Our result show that of the 113 alien species in Sudans (99 in Sudan and 59 in South Sudan), 92 (81.4%) are naturalized and 21 (18.6%) are just casual aliens. The number of naturalized species represent 2.2% of the total flora of the Sudans (4096). The alien species belong to 44 families and 85 genera, and many of them are native to Southern America and Northern America (85.8%). Annual and perennial herbs are the prevailing life forms in the alien flora of the Sudans (68.1%), and, among the casual species, perennial herbs are underrepresented whereas woody tree species are over-represented. Alien plants of the Sudans are mostly used for medicinal and environmental purposes globally. The naturalized plants predominantly occur in man-made disturbed habitats, such as agricultural and ruderal habitats. This first overview of the alien flora of the Sudans should stimulate further research and recording of the alien flora to better understand the drivers and consequences of alien plants in the Sudans.

scholarly journals Effectiveness of Flexible Dam Operation and Sediment Replenishment at Managawa Dam, Japan

2018 ◽  
Vol 13 (4) ◽  
pp. 691-701 ◽  
Author(s):  
Katsumi Matsushima ◽  
Makoto Hyodo ◽  
Noriyuki Shibata ◽  
Yoshihiro Shimizu ◽  
◽  
...  
Keyword(s):  
Flood Pulse ◽  
Demonstration Project ◽  
Scale Analysis ◽  
Management Options ◽  
Ecological Processes ◽  
Fluvial Systems ◽  
Macro Scale ◽  
Dam Operation ◽  
The Impact ◽  
The Relationship

A field demonstration project on flexible dam operation at the Managawa dam in the Kuzuryu River Basin has been implemented since 2000. The goal is to restore flow and sediment regimes in the Managawa River, which flows along the Ono-city and is located below the dam. Flexible dam operation stores inflow discharge into a reservoir, which generally uses part of the flood control capacity and appropriately discharges the stored water to the river, also known as the “flood pulse,” for restoring dynamic fluvial systems and the resulting ecological processes. In addition, other options have been carried out in combination with flexible dam operation, for example, sediment replenishment since 2003 and channel rehabilitation since 2007. This article reveals the positive impacts and effectiveness of flexible dam operation, sediment replenishment, and channel rehabilitation, and discusses challenges and future prospects toward translating the field demonstration project into dam management on the ground level. First, we classified reach types to identify the impact of various management options, e.g., flexible dam operation, sediment replenishment, and channel rehabilitation. These management options can influence respected reaches. We conducted a macro-scale analysis to understand the relationship between the aforementioned management options and dynamic fluvial systems, addressing changes in gravel riverbed, vegetation, and habitat types (riffles and pools). Second, a micro-scale analysis was conducted to understand the relationship between the management option and changes in attached algae to sediment and macro-invertebrates, etc. The results show the effectiveness of the middle-scale flood pulse to restore dynamic fluvial systems, increase habitat diversity, and sustain ecological processes. Furthermore, we discussed the impacts of such options on the flow and sediment regimes in Managawa River and revealed that flexible dam operation reduces the occurrence of low flow and midscale floods. It was also revealed methods such as sediment replenishment and channel rehabilitation play an important role in increasing the effectiveness of the middle-scale flood pulse and restoring dynamic fluvial systems, even though sediment replenishment is not sufficient to restore sediment regimes (i.e., bring then back to pre-dam conditions).

Heritage Management in East Africa

2021 ◽  
Author(s):  
Herman O. Kiriama
Keyword(s):  
South Sudan ◽  
Local Communities ◽  
Heritage Management ◽  
Management Systems ◽  
East African ◽  
African Countries ◽  
East African Community ◽  
Heritage Site ◽  
The World ◽  
Economic Bloc

The countries of Burundi, Kenya, Tanzania, Uganda, Rwanda, and South Sudan geographically lie on the eastern part of the African continent and are member states of the East African Community (EAC), a regional economic bloc. These countries, as many other countries in the world, have important heritage places that are significant to their communities. As a result, these countries have developed various methods of managing this heritage. Heritage management should be understood as caring for a heritage site without compromising its significance so that present and future generations can continue enjoying it. Consequently, countries around the world have put in place various legal regimes that enable them to manage and protect their heritage. Though the East African countries listed belong to the same geographical region and economic bloc, they had differing colonial experiences and, therefore, their legislation regimes, including that governing heritage, may not be exactly the same. Kenya and Uganda, for instance, were British colonies, whereas Tanzania started as a Germany colony but later ended up as a British Protectorate. Rwanda and Burundi also started as Germany colonies but ended up as Belgian colonies. South Sudan, once part of the larger Republic of Sudan, was a British colony. Common to all these countries, however, is the fact that the colonial management system laid more emphasis on the protection of tangible as opposed to intangible heritage, and it also ignored and in most cases destroyed the indigenous management systems that local communities had hitherto used to manage their heritage. Despite gaining their independence from the colonial governments in the early 1960s, these countries, have however, apart from Rwanda, continued to use the inherited colonial legal systems. It is now widely accepted within heritage management circles that unless indigenous heritage management systems are embraced, the local communities tend to feel alienated from their heritage and thus in most cases tend to disregard, ignore, or in some cases destroy the heritage site as it no longer belongs to them but to the state; the end result is that pressure is put on the heritage as the national government institutions do not have adequate financial and human capacity to manage all the heritage resources in their jurisdiction.

Medical and Economics Benefits of Tele-expertise in Dermatology: Case study in eight Health Centers in Mali.

2020 ◽  
Author(s):  
Cheick Oumar Bagayoko ◽  
Mahmoud Cissé ◽  
Joseph Aka ◽  
Adama Dicko ◽  
Abdrahamane Anne ◽  
...  
Keyword(s):  
Health Professionals ◽  
Medical Condition ◽  
Healthcare Providers ◽  
Cross Sectional Study ◽  
Economic Benefits ◽  
Expert Advice ◽  
Financial Benefit ◽  
African Countries ◽  
Cross Sectional ◽  
Specialized Care

Abstract Background: Mali, like many Sub-Saharan African countries, is experiencing an acute crisis with respect to the shortage of qualified health professionals. This crisis is even more acute when it comes to specialized medical fields such as dermatology. To address this shortage, a tele-dermatology project has been launched in Mali since 2015 in order to provide access to specialized care to the most remote populations.Objective: The aim of our study is to assess the medico-economic benefits of the pilot phase of this project.Methods: We conducted a retrospective cross-sectional study of all requests for expert advice sent to dermatology experts through the "Bogou" tele-expertise platform.The sample consisted of 52 patients at eight remote sites and ten health professionals, including 4 specialists.The economic study was done using a parameter of cost analysis and the professional evaluation of healthcare providers. It compared consultation and transportation fees (on-site and off-site), and used a questionnaire assessing items on a 5-level Lickert scale and open-ended questions to evaluate the satisfaction of health professionals. Data analysis was performed by SPSS v25.Results: During the period, 374 requests for tele-expertise were made for the benefit of 52 patients. 89.3% of requests were answered by specialists, with an average response time of 46 hours 59 minutes and extremes from 7 minutes to 415 hours 4 minutes. Eczema was the most common medical condition diagnosed. 98% of patients had never completed a dermatological consultation because of a lack of means to travel to the only specialized center in the country. Consequently, they were all very satisfied or satisfied with the tele-expertise service. The 52 participating patients in project have realized a great financial benefit. Together they saved an average of 5,824,500 XOF (9429 euros).All the health professionals surveyed also expressed satisfaction with the application. They confirmed that the project has enabled them to strengthen their skills in the management of dermatological pathologies.Conclusion: Based on the results of our study, we can say that tele-dermatology allows access to specialized care and a reduction in the costs of care for patients in remote areas.

Africa's cancer burden to rise without funding shift

2015 ◽  
Keyword(s):  
Low Income ◽  
Urban Areas ◽  
Economic Benefits ◽  
World Health ◽  
Low Income Countries ◽  
Health Priorities ◽  
African Countries ◽  
Content Type ◽  
Cancer Burden ◽  
Market Expansion

Subject Cancer burden in Africa. Significance Cancer is a growing public health threat in low-income countries, including African states. With the increase in urbanisation, population growth and improving mortality rates, the World Health Organisation (WHO) estimates that by 2020, 16 million new cases of cancer will be diagnosed each year, with 70% of those in low-income countries. However, the rise in cancer rates has not been met with changes to aid funding. Global health priorities continue to emphasise infectious diseases, and African countries remain ill-equipped to prevent, diagnose or treat cancer. Impacts Rising consumption of processed foods in urban areas will contribute to an overall rise in non-communicable diseases. African countries are some of the fastest growing markets for tobacco companies as health awareness rises in traditional markets. Global brewers will enjoy significant market expansion in Africa, contributing to increased alcohol consumption. Despite the economic benefits, delayed childbearing and lower fertility in women is set to increase the incidence of breast cancer.

scholarly journals Iterative Forecasting Improves Near-Term Predictions of Methane Ebullition Rates

2021 ◽  
Vol 9 ◽  
Author(s):  
Ryan P. McClure ◽  
R. Quinn Thomas ◽  
Mary E. Lofton ◽  
Whitney M. Woelmer ◽  
Cayelan C. Carey
Keyword(s):  
Null Model ◽  
Open Water ◽  
Forecast Model ◽  
Great Promise ◽  
Ecological Processes ◽  
Total Uncertainty ◽  
Predictive Skill ◽  
Iterative Model ◽  
The Future ◽  
Near Term

Near-term, ecological forecasting with iterative model refitting and uncertainty partitioning has great promise for improving our understanding of ecological processes and the predictive skill of ecological models, but to date has been infrequently applied to predict biogeochemical fluxes. Bubble fluxes of methane (CH4) from aquatic sediments to the atmosphere (ebullition) dominate freshwater greenhouse gas emissions, but it remains unknown how best to make robust near-term CH4 ebullition predictions using models. Near-term forecasting workflows have the potential to address several current challenges in predicting CH4 ebullition rates, including: development of models that can be applied across time horizons and ecosystems, identification of the timescales for which predictions can provide useful information, and quantification of uncertainty in predictions. To assess the capacity of near-term, iterative forecasting workflows to improve ebullition rate predictions, we developed and tested a near-term, iterative forecasting workflow of CH4 ebullition rates in a small eutrophic reservoir throughout one open-water period. The workflow included the repeated updating of a CH4 ebullition forecast model over time with newly-collected data via iterative model refitting. We compared the CH4 forecasts from our workflow to both alternative forecasts generated without iterative model refitting and a persistence null model. Our forecasts with iterative model refitting estimated CH4 ebullition rates up to 2 weeks into the future [RMSE at 1-week ahead = 0.53 and 0.48 loge(mg CH4 m−2 d−1) at 2-week ahead horizons]. Forecasts with iterative model refitting outperformed forecasts without refitting and the persistence null model at both 1- and 2-week forecast horizons. Driver uncertainty and model process uncertainty contributed the most to total forecast uncertainty, suggesting that future workflow improvements should focus on improved mechanistic understanding of CH4 models and drivers. Altogether, our study suggests that iterative forecasting improves week-to-week CH4 ebullition predictions, provides insight into predictability of ebullition rates into the future, and identifies which sources of uncertainty are the most important contributors to the total uncertainty in CH4 ebullition predictions.

scholarly journals Service Delivery in the Lesotho Tourist Attraction Sector: Are Tourists Satisfied with the Service Provision?

2021 ◽  
Vol 2 (10) ◽  
pp. 677-691
Author(s):  
Boitumelo Caroline Rasethuntsa
Keyword(s):  
Qualitative Research ◽  
Service Quality ◽  
Service Delivery ◽  
Environmental Sustainability ◽  
Service Provision ◽  
Economic Benefits ◽  
Research Approach ◽  
Tourist Attraction ◽  
African Countries ◽  
Tourist Attractions

Tourism has emerged into an economic giant and an engine utilised by African countries to gain economic benefits.  Because tourism is a diverse industry comprising of many subsectors, tourist attractions are regarded as a strategic area of the industry. This study aims to determine the features that attract tourists to Lesotho and establish whether the tourists are satisfied with the service quality provided at local tourist attractions. The study utilised qualitative research approach, and interviews were conducted to gain the insight information regarding the topic under investigation. The findings revealed that the Lesotho landscape and culture are features stimulating destination visitation. Also, the empirical results highlighted that tourist are dissatisfied with the local tourist attractions services including underutilisation of online services, unprofessionalism and lack of skills, under marketing of tourist attractions, and environmental sustainability mismanagement among others. Strategies for improvement are provided based on the findings to enable enhanced management of tourist attractions.

scholarly journals African Big Economies on the Continental Trade Liberalisation and Migration Policy Development

2019 ◽  
Vol 11 (3(J)) ◽  
pp. 39-47
Author(s):  
Andrew Osehi Enaifoghe ◽  
Harris Maduku
Keyword(s):  
Policy Development ◽  
Migration Policy ◽  
Economic Benefits ◽  
African Union ◽  
African Countries ◽  
The West ◽  
Economic Progress ◽  
To Come ◽  
And Migration ◽  
Total Integration

African countries are faced with a broad spectrum of political and economic challenges that have shadowed hugely in an anticipated socio-economic prosperity. The continent overtime has resolved to come up with a single currency as well as opening borders for trade but none of that has been realised. Polarisation of economic development has caused brain drain within the continent with educated people from poorly governed countries moving across borders (Europe and America), and the same happens with gifted entrepreneurs who search for a country with a better business enabling environment than their own home countries. There is uneven development in Africa with very poor, fragile and better performing countries constituting the continent. This has caused a huge burden on those economies that are doing well as those economies have to create jobs for immigrants as well and for their own people. However, the founding principles of the African Union were basically to bring African countries together and help each other to see through economic and political prosperity across the continent in as much as there are laid out guiding rules.Africa has continued to be a highly protective continent especially amongst itself as most countries still require visas from citizens of other African countries, while countries still impose import duties and all forms of control on imports and practices that are against the foresights of the founding principles of the African Union. This paper acknowledges the efforts that have been done in the West and South of Africa for the formation of regional blocks that desire to achieve socio-economic progress in those regions. The formation of ECOWAS in the WEST and SADC in the South are good strides towards integration efforts in Africa but if the founding objectives of the African Union are to be achieved, member countries still have to do more. This paper recommends the two biggest countries in Africa to make use of their economic power to influence smaller member states to also envision possible socio-economic benefits that can emanate from total integration of the continent. They could make use of the African parliament, African Union summits and other several platforms to lobby for this important goal.

scholarly journals In Need of Care but Providers of Care: Grandparents Giving Fulltime Care to their Grandchildren in Rural Uganda

2020 ◽  
Vol 4 (1) ◽  
pp. 1-8
Author(s):  
Neema Stella ◽  
◽  
Nankwanga Annet ◽  
Keyword(s):  
Food Insecurity ◽  
Economic Status ◽  
Elderly Person ◽  
The Elderly ◽  
Economic Benefits ◽  
Rural Elderly ◽  
Elderly Persons ◽  
African Countries ◽  
Systemic Factors ◽  
The Government

Background In most African countries, the elderly face challenges that affect their health and wellbeing and are more pronounced because of the systemic factors of inadequate health care, food insecurity and the general care. Increasing population of the elderly persons in Uganda is raising concern than ever before. The purpose of this paper to ascertain care available to the rural elderly persons and their role as carers for their grandchildren and implications on their wellbeing. Methods This was a qualitative study conducted among the rural elderly aged 60 years and above in eight purposively selected district that included Lira, Nebbi, Kampala, Luwero, Pallisa, Jinja, Mbarara, and Ntungamo. The study sample consisted of 101 elderly person from whom in-depth interviews were conducted. Data was analysed using qualitative thematic content analysis. Results Rural elderly in Uganda face a lot of constraints that include access to healthcare and information, poor economic status, food insecurity and poor nutrition, and poor accommodation and housing conditions. Two broader themes emerged inductively from the analysis that include care available for the rural elderly and providing care to grandchildren. These themes generated several subthemes. Taking care of grandchildren crippled the elderly and reduced the economic benefits. That said some rural elderly were happy and felt fulfilled to care of the grandchildren despite the lack of resources. Conclusion The rural elderly in Uganda are living in doleful conditions with limited care and support. They need care but are the providers of care to the grandchildren. They are frails and may not afford to provide adequate care. They care for grandchildren many of whom are orphans and vulnerable yet they themselves need care. It is important the government and the community re-enforce this care not to put strain on elderly. The rural elderly unique challenges necessitates special targeting and mobilization of resources at the household, local, district and national levels.

scholarly journals A stakeholder view of the development of national evaluation systems in Africa

2020 ◽  
Vol 8 (1) ◽  
Author(s):  
Takunda Chirau ◽  
Caitlin Blaser Mapitsa ◽  
Matodzi Amisi ◽  
Banele Masilela ◽  
Ayabulela Dlakavu
Keyword(s):  
Evaluation System ◽  
Monitoring And Evaluation ◽  
African Countries ◽  
Evaluation Systems ◽  
National Monitoring ◽  
Development Interventions ◽  
Entry Points ◽  
Stakeholder View ◽  
Key Dimensions ◽  
Set Up

vidence for policy-informed decision-making, budgeting and programming. National evaluation systems (NESs) are being set up across Africa, together with the processes and other monitoring and evaluation (ME) infrastructure for efficient and effective functioning.Objectives: This article seeks to document comparative developments in the growth of systems in Anglophone African countries, and provide an understanding of these systems for capacity-development interventions in these countries. It also aims to contribute to the public debate on the development of national ME systems, institutionalisation of evaluation, and use of ME evidence in the larger African context.Methods: This article uses four key dimensions as the conceptual framework of a national monitoring and evaluation system, including monitoring and evaluation systems in the executive; the functioning of parliamentary ME systems; professionalisation of evaluation and existence of an enabling environment. A questionnaire was used to collect information based on the key dimensions from government and non-governmental personnel. The Mo Ibrahim index of 2018 was used to collect information on enabling environment.Results: Findings indicate that all systems have stakeholders with different roles and contexts and are designed according to the state architecture, prevailing resources and capacities.Conclusions: This article concludes that the findings can be used as different entry points for developing and strengthening ME capacities in countries studied.

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