Abstract Information on seed germination of trees is important as it forms a vital baseline for among other information on the germination of indigenous seedlings which take many years to germinate. The study was carried out to find out the effect of different light intensities and growth hormone on the propagation of Ocotea usambarensis Engl.The study was carried out for a period of three months (August to October 2010). The objective of the study was to determine the best propagation method...
ABSTRACT Fisheries and aquaculture is an important source of food, income and livelihoods for hundreds of millions of people around the world. Aquaculture production has increased from 29.5million tonnes in 2010 to37.5 million tonnesin 2014 in the world and 1.3 million tons in 2010 to 3.8 million tonnesin Africa. There is no sufficient information suitability ofwater quality in aquaculture ponds in Tigoni. The aim of the study wasto determine the suitability of aquaculture ponds for fish fa...
ABSTRACT Agro-industrial industries are among of the major contributors of industrial effluent. Poor management of these effluents has resulted in myriad challenges to developing countries on environment and human health. The research was conducted in Bomet County of Kenya. The study sought to assess the impacts of effluent discharge from Kapkoros Tea Factory into Kipsonoi River on the local community. The objectives were: to identify types of wastes generated by the Kapkoros Tea Factory, to ...
ABSTRACT Research in wetlands has made great progress and it is widely recognized globally that they are under threat of disappearing and degradation due to overexploitation of their products and services. The study was undertaken in Yala wetland that covers an area of 17,500 ha in an area with one of the highest population density and growth rate in Kenya. The wetland is mainly cleared for crop cultivation and settlement and about 2,800ha (Figure 4.14) have been drained for commercial agricu...
ABSTRACT Land-use changes are the main cause of human and environmental problems especially in many developing countries in Africa and Asia. Study was conducted in Mai Mahiu, Nakuru County, Kenya whose aim was to assess the impacts of land-use and cover changes on the ecosystem functioning and human environment. Specific objectives were: (i) to understand the nature of land use practices (ii) to monitor impacts on soil quality; (iii) impacts on vegetation composition and structure; (iv) to e...
Nakuru municipality has serious water resource problem brought about by contamination and pollution of the drinking water. The Water source within most of the schools in Nakuru municipality is from piped water mains, rain / boreholes, roof catchment, dams and pans and shallow wells. This study was on impact of communication of water quality information on awareness creation within primary schools in Nakuru Municipality. The purpose of the study was to find out whether information on wate...
Wetlands are continuously degraded via agricultural activities, pollution and settlement. In Lari sub-county for example, increase in population pressure, decline in soil fertility, unreliable rainfall plus quest for food security is forcing the farmers to encroach on the seemed idle Upland wetland. Opportunity for conservation of this wetland lies on the participatory approaches that can be embraced at local level helping in conservation of this vital natural resource. Ruiru river main ...
ABSTRACT Stakeholder participation has been shown to be an effective approach in increasing access to safe water and sanitation in many parts of the world. This study investigated stakeholder participation in management of water resources in Machakos Sub-County of Machakos County, Kenya. Specifically, it sought to assess the level of community participation in water resources management, collaboration between stakeholders, stakeholder contribution in increasing access to reliable water resou...
ABSTRACT There is a growing demand for indigenous medicinal plants and an increasing interest in their use among Kenyans who depend on them for one use or another. The study was conducted with the main objective to determine the utilization and conservation of indigenous medicinal plants in Koipirir, Ilchurai and Ikumae in Baringo County. The specific objectives were to assess the composition and abundance of the common Indigenous Medicinal Plants in the study areas, to find out the diversity...
ABSTRACT Forests cover approximately 30% of the earth‘s land surface area and provide critical ecosystem goods and services to mankind. However, forest cover in Kenya is among the lowest in the world, currently at around 7.6%. The Mau Forest Complex is the largest water tower in Kenya, but is threatened because of land use change and rapid human population growth in the adjoining areas. The overall objective of this study was to assess community attitudes and perception towards conservatio...
An experiment was undertaken in NM-AIST farms in Arusha Tanzania from January to July 2017 to assess the potential of pesticidal plants on supporting the beneficial insects, controlling pests’ and influencing bean growth and yield. Six treatments were evaluated. This included: bean plots imposed close to the following field margin pesticidal plants: 1) Tephrosia vogelii, 2) Lantana camara, 3) Tithonia diversifolia and 4) Lantana trifolia 5) positive control treatments sprayed with synt...
Flash flood is a natural disaster that occurs due to the sudden onset of rainfall that causes runoff waters from high altitude areas to low altitude area. The purpose of the study was to investigate the effects and management of flash floods in Marigat Sub-County. The study used a descriptive research design. The target population of the study area was 24,893 households. Purposive sampling and stratified random sampling methods were used to select three locations affected by flash floods...
Polythene bags have been preferred for packaging purposes because they are light in weight, cheap and resistant to degradation. Despite the benefits, poor disposal of polythene causes degradation of soil, water, land and air resources leading to health problems. Burning polythene releases Greenhouse gases mainly Carbon dioxide, associated with Climate change. Furthermore, polythene kills wild game, livestock and aquatic organisms. The adverse effects of polythene bags in the country led ...
Many studies on Artisanal Gold Mining have estimated that it employs an estimated 13 Million people worldwide, with another 80 to 100 million people directly or indirectly benefiting. In sub Saharan Africa it is viewed as an economic mainstay activity providing direct employment to over two million people. Artisanal gold mining uses rudimentary processes to extract valuable minerals from primary and secondary ore bodies, and is characterized by the lack of long-term mine planning. In Ken...
The efficiency of the sewage works depends on the quality and quantity of the influent and the design of the sewage works. Inefficiency of the sewage work has adverse health impact to the aquatic ecosystem. Pollutants can bio-accumulate and bio-magnify in the food chain causing health impact to both human being and wildlife. The main objective ofthis study was to assess the effectiveness of wastewater management system of Njoro industrial sewage works. This study used descriptive resear...