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\hypersetup{pdftitle={Ecological Impacts of Land Cover/land Use in Communities Around Erinle/owala Reservoir , Osun State, Nigeria},pdfauthor={Sunday Olukayode Oladejo, Olajumoke A. Morenikeji, Ayobami T. Salami},pdfsubject={Tropentag 2016: Abstract},pdfkeywords={GIS, Land Cover/Land Use, Landsat TM Landsat ETM+ and Ecological impacts matrix model, remote Sensing},pdfpagemode=None,colorlinks=true}
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\parbox[b]{13.4cm}{\centering \large{\textbf{Tropentag, September 18-21, 2016, Vienna, Austria}}\\[1ex] \Large{``Solidarity in a competing world ---\\fair use of resources''\\[2ex]}}
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\Large{\textbf{Ecological Impacts of Land Cover/land Use in Communities Around Erinle/owala Reservoir , Osun State, Nigeria\footnote{\textbf{Contact Address:} Sunday Olukayode Oladejo, Federal University of Technology, School of Earth and Mineral Sciences, Dept. of Remote Sensing and GIS, 13, Itedo-Oluwa St. Aroko estate, Osogbo, Nigeria, \mbox{e-mail}: \email{sooladejo@futa.edu.ng}}\\[0.8ex]}}
\normalsize{\textsc{Sunday Olukayode Oladejo$^{1}$, Olajumoke A. Morenikeji$^{2}$, Ayobami T. Salami$^{3}$}}
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\begin{itemize*}
\item[]{\small{\textit{$^{1}$Federal University of Technology, School of Earth and Mineral Sciences, Dept. of Remote Sensing and GIS, Nigeria}}}
\item[]{\small{\textit{$^{2}$University of Ibadan, Dept. of Zoology, Nigeria}}}
\item[]{\small{\textit{$^{3}$Obafemi Awolowo University, Inst. of Ecology and Environmental Studies, Nigeria}}}
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\index[author]{Oladejo, Sunday Olukayode}
\index[author]{Morenikeji, Olajumoke A.}
\index[author]{Salami, Ayobami T.}
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\textbf{Abstract}
\begin{abstract}
\normalsize{
Land cover is the observed (bio) physical cover on the earth's surface.Land use is characterised by the arrangements, activities and inputs people undertake in a certain land cover type to produce, change or maintain it. Land cover may be observed directly in the field or by remote sensing, observations of land use and its changes generally require the integration of natural and social scientific methods (expert knowledge, interviews with land managers) to determine which human activities are occurring in different parts of the landscape, even when land cover appears to be the same. The study investigates the ecological impacts of Land Cover/Land Use types in communities around Erinle/Owala Reservoir, Osun State, Nigeria, for the time period 1986--2009 using GIS technology. Four Landsat Thematic Mappers of 1986, 1991, 2000, 2003, and one Landsat Enhanced Thematic Mapper+ for the year 2009 were used in developing historical Land Use/Land Cover (LU/LC) . The images were digitally processed using maximum likelihood classification algorithm in ERDAS IMAGINE software., which identified six land cover/ use classes including wetland, Forestland, Shrub lands, Settlement, Croplands and other lands. The Land Cover/Land Use change detection pattern showed a change in the classified Images, after 1986 which resulted in the increase of wetland is clear evidence that a vast area of farmland and forest area has been changed to wetland thus increasing the flooded area pave way for diverse impacts in and around the surrounding communities. This paper therefore highlights the relevance of remote sensing and GIS techniques in assessing the ecological impacts in Osun state south"=western Nigeria.}

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\noindent \textbf{Keywords:} GIS, Land Cover/Land Use, Landsat TM Landsat ETM+ and Ecological impacts matrix model, remote Sensing
\index[key]{GIS}
\index[key]{Land!Cover/Land Use}
\index[key]{Landsat TM Landsat ETM+ and Ecological impacts matrix model}
\index[key]{Remote Sensing}
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