Environmental & Physical Sciences

Research Papers/Topics in Environmental & Physical Sciences

An Assessment Of The Impact Of Land Use Changes On Human Elephant Conflict In Laikipia West District, Kenya

Farmers in Laikipia West district like many other farmers living in wildlife dispersal areas have continued to suffer huge losses resulting from wildlife menace without adequate compensation. Land use has been changing with time making the area prone to crop destruction by elephants. While it is known that land use change contributes to human -wildlife conflict, it has never been quantified over time for Laikipia West District. The objective of the study was to assess...

Assessment Of Genetic Diversity Of Sorghum (Sorghum Bicolor) Accessions From Tanzania Using Ssr Markers: Implications For Conservation

Plant genetic resources are a key component of global biodiversity from which humanity derives most of its food and other essential goods and services. An understanding of the  extent, distribution, and patterns of genetic variation is useful for several purposes, including selection for conservation, estimation of any possible loss of genetic diversity prior to conservation programs, understanding the genetic variability available and its potential use in breeding programs, and es...

Wind Resource Potential For Electricity Generation Using Micro - Hybrid Systems In Northern Kenya

ABSTRACT Currently the world is embracing renewable energy not only to enhance energy capacity but also to mitigate problems associated with green house gas emissions. North eastern Kenya region lagged behind others parts of the republic in social economic indices. This may be attributed to the fast distance between the region and the electricity generation areas. Therefore northern Kenya is not connected to national electricity grid. Renewable energy from the wind can be used to supply...

Effects Of Selected Limiting Nutrients On Growth And Yield Of Maize And Their Variability In Smallholder Farms Of Kandara, Murang’a County

ABSTRACT Nutrient mining and mismanagement of farmers’ fields has led to a decline in soil fertility in smallholder farms. In order to increase the productivity and subsequently improve food security in Sub-Saharan Africa (SSA), there is a need to identify soil nutrients limiting maize growth and production. The objectives of the study were; (i) to determine the most limiting nutrients for maize production in Kandara and establish the effect of selected soil amendments (CaMgS, man...

Environmental Sustainability In Informal Settlement Upgrading Projects In Nairobi, Mombasa And Kisumu Cities In Kenya

The phenomenal growth of urban centres in developing countries makes cities important sites for engaging with environmental issues. The prevalence of informal settlements in cities and its implication on environmental sustainability has become a growing concern. Metabolic processes of these spatial units significantly shape the urban ecological system and define quality of life in cities. However, the significance of this space in the environmental sustainability func...

The Impact Of Slum Growth On Community Health A Case Study Of Naguru Go-Down Kampala, Uganda

ABSTRACTThis report has been written following a research study to investigate theimpacts of slum growth on the community health of the people living inthem. The research was carried out in Naguru go-down a slum in Kampala-Uganda.The research study intended to achieve the following objectives. Toinvestigate slum conditions in Naguru go-down, to examine how thedeveloping slums are affecting health of the communities living in Naguru-godown and to find out challenges to proper slum devel...

Impacts Of Beach Seines And Castnets On The Environment At Kigungu Fishing Ground On Lake Victoria In Wakiso Distrct, Uganda

ABSTRACTA study to investigate the impacts of Beach Seine and Cast net gears was carried out atKigungu Fish Landing Site on Lake Victoria in Wakiso District Uganda. The majorvaluables considered included the design, construction, operation, catchability, efficiencyand impacts of Beach Seines and Cast Nets. In order to investigate the above, a researchwas designed and it was used. Method for data collection includes; Visits to programmedplaces (Libraries, Research and Training institution...

The Effects Of Monoculture On The Environment In Uganda: A Case Study Of Igara Tea Factory, Bushenyi District

ABSTRACTThe purpose of this study was to investigate the effects of monocuiture on theenvironment. The study identified out Igara tea factory as the case study for thisresearch.. Specific objectives of the study were to: investigate the importance ofagricultural sustainability on the environment; investigate the consequences ofagricultural monoculture specialization on the environment and to suggest alternativesto agricultural monocuiture aimed at conserving the environment. The methods...

Crop Germinative Emergence Of Maize (Zea Mays) And Finger Millet (Eleusine Coracana) As Affected By Plastic Waste Material

ABSTRACT Plastic waste material continues to present environmental challenges throughout the world. Of greatest concern is their disposal in agricultural soils where they interfere with soil fertility due to its inability to decompose fast. Specifically, the research examined under experimental conditions the crop germinative emergence of (Zea mays L.) and finger millet (Eleusine coracana (L.) Gaertn) as affected by plastic waste material commonly disposed in urban and rural environ...

Influence Of Environmental Clubs On Pupils‟ Environmental Awareness: A Study Of Primary Schools In Mwea Division, Embu County, Kenya

ABSTRACT Environmental awareness is one of the goals of environmental education. Insufficient environmental awareness aggravates the problem of environmental degradation. Environmental clubs in primary schools are voluntary groups that promote participation of learners in learning about and working towards conservation and sustainability of the environment. The study on influence of environmental clubs on environmental awareness of pupils was carried out in Mbeere South Sub-County, Embu...

The Role Of Biogas Use In Promoting Environment Conservation In Bukanga Sub County, Isingiro District, Uganda

ABSTRACTThe purpose of the study was to examine the role of biogas use on environmentalconservation. The specific objectives were to examine the different types offuels/energies used in developing countries, find out the benefits of using biogas overother fuels in developing countries and investigate the relationship between biogas useand environmental conservation. The methods used in the study are purposive andsnowball sampling. The data collection instruments were the structured ques...

Effects Of Natural Resource Based Conflicts On Community Livelihoods In Lake Ol’bolossat Catchment Area, Nyandarua County, Kenya

ABSTRACT One of the major challenges to sustainable use of wetlands is lack of awareness by communities on the values of these ecosystems. Wetland resources are important for socio-economic, cultural and ecological supply of goods and services. Despite their importance, wetlands have remained unprotected and they are exploited beyond what they can endure. The main objective of the study was to establish the effects of natural resource based conflicts on community livelihoods in Ol‟Bol...

Implications Of Conservation Agroforestry On Carbon Sequestration, Soil Fertility And Costs In The Drylands Of Machakos County, Kenya

ABSTRACT Kenya’s drylands constitutes about 80% of the country’s size. These drylands are prone to relatively high vegetation and general environmental degradation; translating to changes in soil physical and chemical properties. Conservation agriculture with trees presents an opportunity to reduce vegetation and soil degradation thereby enhancing soil characteristics and carbon sequestration, which is an important component of redressing dryland problems associated with greenhouse ...

The Impacts Of Local Communities Enchroachment On Wetland Ecosystem; A Case Study Of Tana River Wetlands In Tana River County, Kenya

ABSTRACTThe study investigated the impacts of local communities’ encroachment on wetland ecosystemusing Tana River wetlands in Tana County, Kenya. The main objective was to find out theactivities of local communities that are responsible for Tana River wetland degradation. Theproblem in the context was because many people have considered wetlands as useless or wastelands, there has always been drained or reclaimed, filled in or used as dumping grounds yetwetlands play very important ro...

Mixed Farming And Soil Degradation; A Case Study Of Nyarubuye Sub County Kisoro District South Western Uganda

ABSTRACTThe study was undertaken to analyze the relationship between mixed farming and soildegradation in Nyarubuye Sub County. The study objectives included; finding out differentmixed farming practices in Nyarubuye Sub County, identify impacts of mixed farming on soildegradation in Nyarubuye Sub County and to analyze the solutions of on how to over come soildegradation. Data was collected basing on the above objectives and each objective was handledafter the other. Different mixed fam...


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