Environmental & Physical Sciences

Research Papers/Topics Environmental & Physical Sciences

Socio-Economic Attributes Hindering Adoption Of Alternative Crops To Tobacco Farming In Kehancha Division, Kuria West Sub-County, Kenya

ABSTRACT Studies have documented many negative social, economic and environmental implications of tobacco farming. Tobacco farming puts an extra stress on ecosystems and causes specific health and socio-economic problems for poor populations engaged in the activity. Through research, environmentally friendly and sustainable alternative crops to tobacco farming such as soya beans, watermelons, sweet potatoes, groundnuts, cabbages, among others, have been identified. However, the rate and ...

Effects Of Inorganic And Organic Fertilizers On Nutrient Uptake, Soil Chemical Properties And Crop Performance In Maize Based Cropping Systems In Eastern Province Of Rwanda

ABSTRACT The Eastern province of Rwanda is highly populated. This has led to continuous cropping systems without addition of external fertilizers to compensate losses due to removal of grains and residues through harvesting. In such conditions, soil fertility decline is a major factor limiting per capita crop production in the area. It is quite difficult for smallholder farmers to afford to buy and apply adequate quantities of mineral fertilizers and organic sources, making it difficult for t...

Integrating Indigenous And Conventional Knowledge-Based Climate Forecast For Farmers’ Enhanced Adaptation To Climate Variability In Tharaka-Nithi And Kitui Counties

ABSTRACT Climate variability has a negative impact on crop productivity and has affected many small-holder farmers in the arid and semi-arid lands (ASALs). Small-holder farmers in the study area are faced with the constraint of climate variability and have consequently made effort at the local level to utilize indigenous knowledge (IK) in addition to conventional knowledge to mitigate the impacts of the variability. However, documentation of the IK indicators is limited. This study was theref...

Assessment Of Radiological Doses Associated With Natural Radioactivity From Soil In The Communities Close To Uranium Mines In Namibia

ABSTRACT Primordial radionuclides are ubiquitous in the environment and they exist in different ranges of concentration levels in minerals. Some human activities such as uranium mining can result in a rise of concentration of naturally occurring radioactive materials (NORM) and lead to exposure conditions. This necessitates a need to radiologically map and determine the extent of exposure of people who work in the mines and communities that live nearby as they can be the primary exposed popu...

Improving Agronomic Efficiency In Cassava- Based Farming Systems In The Democratic Republic Of Congo Using Organic And Inorganic Inputs.

ABSTRACT Cassava is an important food crop in small-holder farming systems in DR. Congo. Due to the limited use of organic and inorganic inputs, soil fertility becomes a major problem in cassava production systems. Inorganic inputs for small-holder farmers are often too expensive to apply at optimal rates and combining use of organic and inorganic fertilizer inputs is a suitable management principle for small-holder farmers. A study involving 15 households was carried out in DR. Congo with th...

Assessment Of Naturally Occurring Radioactive Materials And Trace Elements In Playgrounds Of Selected Basic Schools In The Ga East Municipal District, Accra, Ghana

ABSTRACT The 235U, 232Th series and natural 40K are the main source of natural radioactivity in soil and have long half-lives up to 1010 years. Therefore their presence in soils and rocks is simply considered as permanent. Also due to rapid urbanization, most of Basic School playgrounds in Accra are built close to major roads or industrial areas for which they are subject to many potential pollution sources, including vehicle exhaust and industrial emissions.. A study has been carried out on...

Effects Of Sand Harvesting On Water Quality In River Thwake Machakos County, Kenya

ABSTRACT Sand harvesting is a common economic activity globally and has environmental effects on the riparian land as well as the quality of the river water the activity is carried out. The associated environmental and water quality challenges pose environmental and health risks to the community and the aquatic life. This study was conducted between May and September, 2016 and was aimed at assessing the physico-chemical quality of water in River Thwake and the socio-economic impacts of sand h...

An Assessment of Family Planning Practice in Bassa Local Government Area of Kogi State

ABSTRACT This study focuses on the assessment of family planning practices in Bassa Local Government Area of Kogi state Nigeria. This is against the background that the study area is a predominantly rural, where little maybe known about fertility behaviour. The aim of the research is to assess the general family planning practice awareness in the area and to help policy makers in evolving practical planning interventions. The study objectives includes the identification the demographic and s...

Evaluation Of Public Housing In Ogun State, Nigeria

ABSTRACT Governments all over the world are taking steps to address the problem of providing adequate and affordable housing to their people. Ogun State Government in Southwest Nigeria is not left out in this drive, and thus initiated an integrated public housing programme in 2003 with the assumption that the use of different strategies by different organizations will result in the provision of adequate housing and improved quality of life for different categories of people in the State. In ...

Vegetation Diversity And Carbon Stock Of Natural Regeneration Woodlands Of Kishapu District, Tanzania

ABSTRACT Natural regeneration woodlands have the potential for enhanced carbon sequestration and climate change mitigation although little is known on vegetation species diversity and the associated carbon dynamics. A study was carried out among three selected natural regeneration woodlands (Nyasamba, Bubinza and Ndoleleleji) of Kishapu district aimed (1) to determine plant species diversity, (2) to quantify herbaceous biomass productivity, (3) to determine tree stocking capacity, and (4) to...

Investigation Of Trespassing And Irregularities In Physical Planning Using Remote Sensing And Geographic Information System (Case Study: Nyala City)

Abstract Urban planning need to be regulated by laws , and in the sudan there are adequate laws, but the problem lies in inspection of the building construction as stated in the law which based on direct field work ,that need many financial and human resources . As the matter of lack of these resources the problem of the urban planning increase the spread of urban planning problems , such as trespassing on public area and roads . Digital technique of remote sensing and geographical informati...

A Comarative Study Of Ellipsoidal And Mean Sea Level Heights

Abstract This research aims to compare between heights that measured relative to the mean sea level (Orthometric Heights) and that ones related to the ellipsoid (Ellipsoidal Heights). By observing 11 points using both methods, the comparison was carried out, it found that the RMSE is 0.023m, and to convert between method to another must add or subtract 1.635m in the study area.

Exploring Green Design Strategies In A Proposed Benue International Cargo Airport, Nigeria

  ABSTRACT In recent years, there has been a substantial growth in the agricultural products from Benue state which can be harnessed to foster the upkeep of the nation's teeming population as well as increase revenue generation through export. One viable way to enable these products get to other parts of the world is by air, air cargo refers to the transportation of goods via aircraft Airport operations are associated with negative environmental impacts which include resource consumpti...

A Study Of Wetland Valuation Practice For Compensation In The Niger Delta, Nigeria

ABSTRACT The study examined wetland valuation practice for compensation in the Niger Delta, Nigeria. The primary data used for the study were obtained from questionnaire administered on 120 respondent Estate Surveying and Valuation firms in the study area. Personal and/or telephone interviews were conducted on the Heads of Department of Estate Management of the various Universities offering Estate Management in the Southern part of Nigeria, to ascertain whether environmental valuation is bei...

Assessment Of Natural Resources Conflicts In Some Selected Villages Surrounding Mikumi National Park

ABSTRACT  This study investigated the Natural Resources conflicts in Doma, Maharaka and Mkata villages surrounding Mikumi National Park. The study assessed humanelephant, human-carnivore and farmers and livestock keeper‟s conflicts. Field observation, household survey, field interviews and in-depth interviews were used to find the required information. The collected information were analyzed using SPSS version 16. Losses due to elephant consumption increased year after year in all three vi...


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