Environmental & Physical Sciences

Research Papers/Topics in Environmental & Physical Sciences

Challenges And Opportunities Associated With Community Participation In Solid Waste Management In Sakubva, Mutare

ABSTRACTThe aim of the study was to analyse the challenges and opportunities of communityparticipation in solid waste management in Sakubva suburb of Mutare. The research wasfundamental since it envisioned unravelling more information in relation to objectives whichincluded interrogation of the level of Sakubva community participation in solid wastemanagement in light of the challenges and opportunities for future waste management,establishing types and amounts of waste generated, determining...

Impact Of Anthropogenic Activities On Sustainability Of Makuwe- Gando And Mtambwe South Forest Patches In Wete District Of Pemba Island, Zanzibar

ABSTRACT The objective of the study was to assess impact of anthropogenic activities on sustainability of the natural forest fragments of Makuwe-Gando and Mtambwe south forest patches, Wete District of Pemba Island. The study was carried out based on the following specific objective; (1) to identify important forest goods and services derived from MGFP and MSFP of Wete district in Pemba Island; (2) to identify type and nature of anthropogenic activities in MGFP and MSFP of Wete district...

Effect Of Anthropogenic Activities On Degradation Of Lake Shores; A Case Of Lake Babati

ABSTRACTThe sustainability of many lake ecosystems in the world including Lake Babati is threatened by the ongoing degradation due to anthropogenic activities. A study was carried out to assess the effect of anthropogenic activities on the degradation of Lake Babati shores based on specific objectives: (1) to identify institutions and institutional arrangements responsible on the management of lake ecosystem, (2) to identify drivers leading to the lake shores degradation, (3) to assess t...

Community Participation in the Renewable Energy Sector in Tanzania

ABSTRACT Community participation (CP) is emphasized in the planning and implementation of various projects and sectors. The Renewable energy (RE) sector just like other sector requires community participation for its effectiveness and efficiency. This review aims at exploring the community participation in the renewable sector in Tanzania. A seven-step model was used to review various kinds of literature and five identified themes were analyzed: (i) access to information on RE resources...

Sustainable Management Of Harpagophytum Procumbens And The Effect Of Effective Micro-Organisms And Sulphuric Acid On Its Seed Germination

AbstractDevil’s claw (Harpagophytum procumbens) is a geophyte that occurs mainly in Central,East and South eastern Namibia where it was previously regarded as a nuisance due to itsfruit-claws getting caught on sheep and other livestock. The species has been exploiteddue to its medicinal properties leading to concerns regarding its sustainability. Efforts toconserve it have been tried in order to understand conditions suitable for its managementbut there are still poor results in the germina...

Effects Of Environmental Variability On Fish Diversity And Composition Along The Southern Namibian Coastline During Summer

ABSTRACTSpecies diversity, richness and composition of fish in bottom-trawling were investigatedoff the Namibian coast between Oranjemund and Henties Bay. Sampling followed asystematic transects design, along latitude gradients (28-22oS) at different seafloordepths (100-500m). In total 18 transects were sampled containing 105 stations. At eachtrawled station the whole catch was sorted into species type and the total body mass (kg)of each fish species was recorded. A total of 91 fish species w...

An Evaluation Of The Natural Radioactivity In The Soils Of Okahandja And Karibib, Namibia

ABSTRACTThe natural radioactivity and associated hazards in the soils of the towns of Karibib and Okahandja have been studied by gamma spectroscopy. Each town was divided into ten geographical areas and five soil samples were collected across each area. These samples were processed and placed in well-labelled 500 ml plastic bottles. A High Purity Germanium detector (HPGe) was used to measure the gamma ray spectra of the samples. The intensities of selected gamma lines were used to calculate t...

Effects Of Sand Mining On Land Degradation And Plant Species Diversity: A Case Study Of North B District Of Unguja Region, Zanzibar

ABSTRACT A study was carried out to assess effects of sand mining on land degradation and plant species diversity in North „B‟ district, Zanzibar based on specific objectives to: (1) investigate community perception on sand mining, (2) asses the impact of sand mining on socio-economic activities among small holder farmers,(3) determine effect sand mining on land degradation. The study also aimed (4) to determine effect of sand mining on plant species biodiversity, (5) to identify im...

Impact Of Mine Pollution On Composition, Diversity And Structure Of Plant And Ground-Dwelling Invertebrate Communities Around Kombat Mine Tailings Dump, Namibia

ABSTRACTThe impact of heavy metal pollution on vegetation and communities of ground-dwelling invertebrates was investigated at Kombat Mine tailings dump in Namibia. Sixteen transect lines were marked around the dump. Plots, 15m x 15m, were marked at 50m intervals along each transect. Top soils in the demarcated plots were sampled and analysed for concentrations of heavy metals and total sulphur. Woody plant species were identified, counted and heights measured. Herbaceous plants were identifi...

Genetic Diversity Of Sorghum (Sorghum Bicolor (L.) Moench) And Its Wild Relatives In Namibia Using Ssr And Rapd Analyses

ABSTRACTSorghum bicolor (L.) Moench is the fifth most important cereal crop in the world, and in Namibia, sorghum is the second most important. The genetic resources of sorghum remain unexplored in Namibia. This could lead to a loss of genetic diversity as wild relatives and foreign varieties could interbreed with landraces, resulting in an undesired alteration of its genetic make-up. This study was conducted to evaluate the genetic diversity among the Namibian Sorghum bicolor accessions stor...

An Evaluation Of Factors Influencing Inaccuracy In Residential Property Valuation In Lagos Metropolis

ABSTRACTBesides its other potentially grave consequences, inaccurate valuation is inimical to healthy development of the property market

Seasonal Occurrence Of Fleas And Other Ectoparasites On Small Mammals At Waterberg Plateau Park, Namibia

ABSTRACTFleas and other ectoparasites infesting small mammals were studied from December 2005 to June 2006 at Waterberg Plateau Park, Namibia. The main aim of this study was to investigate seasonal occurrence of fleas and other ectoparasites on small mammals at selected sites at Waterberg Plateau Park. Small mammals were live-trapped, marked and released. Ectoparasites were collected (by brushing) from these small mammals before they were marked and released. Fleas, ticks and lice were stored...

Occurrence And Distribution Of Fish Parasites Of Potential Threat To The Aquaculture Sector Along The Kavango River, Namibia

ABSTRACTCichlids are subject to a wide range of diseases and parasites. Previously studies were conductedon fish parasites on the Okavango Delta, Botswana. This thesis is the first on fish parasites in theKavango River, Namibia.The study aims to identify parasites occurring on commercially farmed fish i.e.: Oreochromisandersonii, Tilapia rendalli and Serranochromis robustus and to determine if these parasitesmay have potential threat to aquaculture and humans.For the purpose of identification...

Insecticide Resistance In Diamondback Moth, Plutella Xylostella L. (Lepidoptera: Yponomeuhdae) From Selected Cabbage Farms Associated With Pyrethroid And Organophosphate Use In Southern Ghana

Over dependence on insecticides for the control of diamondback moth (DBM), Plutella xylostella (L ) has resulted in development of resistant strains and health hazards due to toxic residues in cabbage. The present study was undertaken to evaluate resistance in DBM and to assess the contribution of residues of insecticides used for DBM control on resistance development. A preliminary survey conducted in Accra and Mampong-Akuapem, revealed inappropriate agronomic practices as the main caus...

Identifying The Influence Of Male Household Heads On The Expected Outcomes Of Enam Project Community-Based Interventions

 Background More than a decade ago, UNICEF developed a conceptual framework for malnutrition in which inadequate food intake was identified as an immediate cause of child malnutrition (UNICEF, 1997). Inadequate food intake by children is often a consequence of suboptimal child feeding practices (Latham, 1997). Optimal child feeding practices is a function of household food supply (quantity and quality) and intra-household food allocation practices. In developing countries, gender i...


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