ENVIRONMENTAL IMPACT ASSESSMENT FOR NEWX TOWN DEVELOPMENT IN BWARI FEDERAL CAPITAL TERRITORY NIGERIA
ENVIRONMENTAL IMPACT ASSESSMENT FOR NEWX TOWN DEVELOPMENT IN BWARI FEDERAL CAPITAL TERRITORY NIGERIA
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Date
2015-10
Authors
ISA, Adamu Alhassan
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Abstract
Geospatial technology provides a mechanism for data collection, integration, measurement and output generation in its electronic environment, which models the spatial environment. The aim of this research is to carry out an Environmental Impact Assessment for the proposed New Town Development site in Bwari Area Council of the Federal Capital Territory, Nigeria using Geographic Information Systems and Remote Sensing. The data used include beacon sheet of the study area, the proposed new town development plan, ASTER and satellite images. The proposed new town development plan which was designed in AutoCAD environment was later imported into ArcGIS software environment for further analysis. Also the ASTER image and various baseline data were generated from ASTER other satellite imagery in ArcGIS environment. The analyses carried out include; slope, hill-shed, watershed, curvature, line density, flow direction and flow accumulation. The proposed new town development plan was overlaid on the baseline data to assess the major impacts. Also, the overlay analysis of the new town development plan on land used/land cover generated from satellite imagery were conducted in order to identify the areas that have major impact that are likely to be affected by the proposed new town development plan. The analysis revealed that the area that will be severely affected is the land use land cover classes as well as the watershed drainage basin, flow accumulation, flow direction (runoff) and stream order. It was found that the development have a higher impact of about 55.3 % on bare land, follow by vegetation of about 36.3 % affected, 6.4 % on water body, 1.1 % on rock outcrop and 0.8 % on the built up. Public Participation was also taken into consideration in the conduct of the research. Though the proposed new town development will have a lot of significant adverse effects on the study area and environs, proper mitigation measures will reduce the impact of the adverse effects. However, the positive effects/impacts of the project, as well as its multiplier effects will outweigh the negative impacts, if the project is eventually implemented. Based on the outcome of the research, it was recommended that afforestation should be embarked upon in order to combat the micro atmospheric condition of the study area and also the need for research to be carried out after the town development implementation, so as to assess or examine the impact on the air quality, pollution, noise pollution, drinking water.
Description
A THESIS SUBMITTED TO THE SCHOOL OF POSTGRADUATE STUDIES AHMADU BELLO UNIVERSITY ZARIA IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE AWARD OF THE DEGREE OF MASTER OF SCIENCE IN GIS AND REMOTE SENSING
DEPARTMENT OF GEOGRAPHY
FACULTY OF SCIENCE AHMADU BELLO UNIVERSITY ZARIA
Keywords
ENVIRONMENTAL,, IMPACT ASSESSMENT,, NEWX TOWN DEVELOPMENT,, BWARI FEDERAL CAPITAL TERRITORY,, ,NIGERIA,