Greener Journal of Environmental Management and Public Safety




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Omolere et al

Greener Journal of  Environmental Management and Public Safety Vol. 5 (2), pp. 051-059, April 2016.  

ISSN: 2354-2276

Research Paper

Manuscript Number: 011416007


(DOI: http://doi.org/10.15580/GJEMPS.2016.2.011416007)

 

Detecting Forest Degradation in Old Oyo National Park in Nigeria Using Remote Sensing and GIS

 

1*Omolere OS, 1Alaga AT, 2Mohammed SO, 2Gajere EN

 

1Co-Operative Information Network. (Copine), Obafemi Awolowo University, Ile-Ife.

2National Space Research and Development Agency.Abuja, Nigeria (Nasrda).


Abstract


Abundant fauna and flora resources in Nigeria are being threatened due to the increasing rate of anthropogenic activities across the protected areas in the country. This study examined anthropogenic activities threatening the natural resources considered to be of ecotourism value in Old Oyo National Park. The research also aimed at detecting the level of forest degradation from 1990 to 2014.

A time series Landsat data from 1990 to 2014 for Old Oyo National park was used, a maximum likelihood classification algorithm was employed.

In order to obtain the area extent (in hectares) of the resulting land use / land cover type for each study year and for subsequent comparison, the GIS analysis in database query (AREA) of Idrisi Taiga  was carried out. Tabulation and area calculations provided a comprehensive dataset in terms of the overall land scope and the type and the amount of changes that have occurred.

Remote sensing technology in combination with Geographic Information System can render reliable information on landuse dynamics. This study will examine the integration of geospatial technique in examining the level of forest degradation around Old Oyo National park. Landsat TM for 1990, TM 2000 and Landsat 8 of 2014 would be used to determine the level of forest degradation. Markov chain prediction for a period of twenty years would be performed. This is to predict the state of the forest in the next twenty (20) years, from 2000 to 2020.  Other analysis will also be performed, such as area calculation, gain and loss using Land change modeller, overlay and image differencing.

 

Keywords: Degradation, Forest, National Park.

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References


Faleyimu (2006) Revenue generation in the state Forest service in south west Nigeria. African Journal of General Agriculture. vol. 6 No. 4

 

Famuyide (2005) Global estimate of the value of ecosystems and their services in Monetary units. vol. 1 pages 50-61

 

Oyinloye, R. (2003). Generation of impacts of sesitivity index (ESI) map of impacts of ubanization of Ibadan, Nigeria, using multi-temporal images. . Ile-Ife Nigeria.: Unpublish MSC Thesis.

 

Oyinloye, R. & Salami, A. (1990). Detection of forest reserve incursion in South-western Nigeria from a combination of multi data aerial photographs and high resolution.

 

Salami, A. T. & Akinyede, J. (2006). Space technology for monitoring and managing forest in Nigeria,. United Nation committee on peaceful uses of outer space (UNOOSA), (pp. 221-252). Vienna,Austria.

 

Salami A. T. (1999) Application of Remote sensing and GIS in Land use/ Land cover mapping and change detection In part of south western Nigeria. African Journal of Environmental science and technology vol. (5) pp. 099- 101

 

Salem, C. & Vincent. M. (2007). An algebra for multicriteria spatial modelling computers. Enviroment and Urban system , 572-596.

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