December 2010
A Decade of Decadence
December 2010
Saudis trust and confidence in information sources about chemical pollution
The presence of toxic chemicals in the environment has drawn increasing concern in Saudi Arabia in recent years. Public health officials recognize a direct link between health problems and exposure to these chemicals. To communicate information on chemical pollution health risks effectively, policy makers must know population source of information and the confidence level in this information. This study...
December 2010
The groundwater geochemistry of the Saloum delta aquifer: Importance of silicate weathering, recharge and mixing processes
The physical-chemical and isotopic characteristics of the groundwater in the Saloum detrital aquifer system obtained from a network of 74 sampling points have indicated the likely geochemical reactions and defined the groundwater flow regime in the context of a semi-arid region. The main geochemical zones with distinct water types and isotopic contents displayed through this investigation are the results of...
December 2010
Variation of interception loss with different plant species at the University of Agriculture, Abeokuta, Nigeria
Interception studies of six plants groups were carried out at the campus of University of Agriculture, Abeokuta in Nigeria, using three different sample sites. These sites were the Arborea plantation, cashew plantation and College of Environmental Resources Management premises of the University. The field work was carried out between 15th June and 28th September, 2009. Of the 22 rainfall events...
December 2010
Drought risk assessment in pasture arid Morocco through remote sensing
During the last three decades, Morocco has experienced several stern and extended episodes of drought that severely affected pasture production. To cope with this phenomenon, the policy makers have put emphasis on a reactive short term management approach rather than on pro-active risk-based management measures. The purpose of this study is the assessment of drought by remote sensing, which is an important...
December 2010
Factors determining community participation in afforestation projects in River Nyando basin, Kenya
Factors determining community participation in afforestation projects were investigated. Data was collected from 150 respondents who were selected from a sample population of 1,928 households using systematic random sampling technique. Data was collected using a standardized questionnaire, focus group discussions and key informant interviews. Chi-square (X2) test was used to establish the relationship between...
December 2010
Phenotypic plasticity of leaf length to an environmental gradient in Khaya ivorensis (Meliaceae) populations in Ghana
Khaya ivorensis encountears different ecological conditions in its native habitats in Ghana. The demand for this species has led to severe depletion of the natural stand, thus threatened with extinction. To address the dwindling populations demands intervention for restoration and establishment of plantations. The goal of reforestation is to establish a new generation of trees with optimal growth and...
December 2010
Production of both esters and biogas from Mexican poppy
This paper details a dynamic evaluation of a procedure for extracting both, ester and biogas from seeds and waste of Mexican poppy (Argemone mexicana) using simple and inexpensive technique. Results showed that A. mexicana seed contains 30% oil. Through the process of transestrification, oil extracted from seed, has been converted to its ester. Methanol gives good separation of ester with A....
December 2010
Local preference of indigenous fruit trees in Coast Province, Kenya
Indigenous fruit trees (IFTs) have various benefits such as enhancing nutrition and food security, but face threats of deforestation and genetic erosion. This paper focused on identification of the local people’s preference of IFT. Research methods mainly involved field survey in Coast province, Kenya and analysis was by the conjoint analytical method. The survey results were as follows: (1) By the...
December 2010
Income sources and their relation to wildlife poaching in Ugalla ecosystem, Western Tanzania
In the Ugalla ecosystem, wildlife conservation is constantly and pervasively challenged by the local communities looking for ways to improve their livelihoods. The need to curb poaching of wildlife continues to spark debate amongst conservation stakeholders in the area. Assessing livelihood contributions of different sources of income in light of wildlife poaching is vital to inform conservation effort. The...
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