Abstract
The survey of the flora composition of an ecosystem is important in several environmental baseline studies. An ecotaxonomic assessment was carried out in Ase-Ndoni proposed Rivgas Refinery project site in other to find out the plant species of medicinal and other economic values. The investigation was carried out to establish a baseline data for imminent environmental vicissitudes and envisaged ecological vagaries as could be the case with the Rivgas Refinery Project. A simple random sampling based on standard procedure for ecological assessment was employed in this study. Results of the enumeration show seasonal variation in species frequency of occurrence. A total of 41 and 24 representative species of medicinal and other economic plants were recorded in the wet and in the dry seasons. These reflect a rich flora diversity of ethnobotanical values in the project site. Hence the envisaged event of uncontrolled and accidental hydrocarbon and effluent discharge, a preconceived knowledge of the vegetation could be helpful in the determination of the long and short term effects of such ecological problem. KEYWORDS : Environment, project area, vegetation sampling, species abundance, and medicinal / economic species.
Highlights
Baseline studies usually refer to a collection of background information and data on the physical environment and socio-economic setting of a proposed site for development
In accordance with the major objectives of this baseline study, the assessment been carried out had shown that the project site is richly endowed with floras of ethnobotanical values
An investigation and understanding of the ethnobotanical flora of our ecosystem is important in several environmental baseline and impact studies
Summary
Baseline studies usually refer to a collection of background information and data on the physical environment and socio-economic setting of a proposed site for development. As a sin-qua-non in environmental management, it is done prior to impact assessment of the given area. It seek to strike a balance between obtaining sufficient information to describe existing features, their inter-relationship and overall environmental status or quality, while obtaining detailed data on the current status and trends of the vegetation to enable specific impacts be predicted. It is an aid to obtaining new data through ethnobotanical interviews, which are relevant for obtaining baseline information on the economic importance of the biota in the proposed site
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