April 2011
Threats and conservation strategies for the African cherry (Prunus africana) in its natural range- A review
The world’s Prunus africana bark demand used to be satisfied by exports, approximately 4000 tonnes per year from a few African countries, led by Cameroon exporting 62%, Madagascar, 20% and Uganda and Equatorial Guinea, 7% each. This coupled with unsustainable bark harvesting methods created pressure on the natural resource which suffered population decline and resulted in the species listing in Appendix...
April 2011
Sustainable land management in Zaria using Remote Sensing and GIS techniques
The need for effective planning and disaster prevention is the main reason for real time data generation provided by Remote Sensing and GIS. Zaria is fast becoming more unplanned due to increase in population and the consequent human influence leading to high rate of land use-land cover change. This study therefore looks into changes in land use-land cover between 1985 and 2005 with a view to providing...
April 2011
Nutrients movement characteristic in terrace sawah occupied by cascade irrigation system in West Sumatra, Indonesia
West Sumatra is one of Indonesian rice bowl. The landscape of this province dominated by mountainous area with beautiful terrace sawah lied from the middle slope to the lowland. The most common rice cultivation management in this area is application of cascade irrigation system with blanked amount of chemical fertilizer application. This study intends to figure out, whether this kind of sawah management sustains are...
April 2007
Determination of trace metal levels in water and sediments of River Benue in Adamawa state, Nigeria
This work was carried out in order to determine the trace metal levels in River Benue to acertain the extent of pollution of the water body. Trace metal levels in water and sediments of River Benue were determined using the atomic absorption spectroscopy (AAS) model. The results suggest that trace metal concentrations in River Benue were generally greater in the sediment samples than water samples. Among the metals...
April 2007
Adjustment of Brunt's equation parameters for the Northern Brazilian Pantanal
Researches involving the long-wave balance have intensified in order to understand the environmental performance of micrometeorological variables. This study tried to determine the parameters of Brunt’s equation for the northern Pantanal of Mato Grosso, using “genetic algorithm”. The results show that the values estimated by the model significantly approached the values obtained with data collected...
