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Spatio-Temporal Variations of Land-Cover Types in Osho Forest Reserve, Southwestern Nigeria

Received: 24 June 2019    Accepted: 23 July 2019    Published: 28 August 2019
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Abstract

The extent of any forest determines its capacity to supply goods and services which are indispensable for man’s continued existence. However, increasing population of humans subjects forest under pressure to meet basic needs of man thereby modifying its extent mostly through deforestation and forest degradation. It therefore became necessary to investigate the extent of Osho Forest Reserve, Nigeria (longitudes 3o25' and 5o00'E, latitudes 7o00' and 7o45'N) with the use of Landsat imageries of 1984, 2000 and 2006. The imageries were georeferenced to the same coordinate system using topographical map of the study area. Bands 2, 4 and 5 were used since they are suitable for vegetation studies. Idrisi32 and ArcGIS 8.1 were used for the analyses and map production respectively. A supervised classification theme of Natural Forest (NF), Plantation and Farmland was adopted after reconnaissance survey in the study area. NF which covered 93.8% in 1984 shrank to 4.0% in 2006, Plantation had occupied 6.0% in 1984 but increased to 9.0% in 2006 while Farmland significantly increased from 0.2% in 1984 to 87.0% within the same period. Although Plantation and Farmland increased over the study period, the declining NF extent has grave implications on the abilityof this forest ecosystem to sustainably deliver its benefits.

Published in American Journal of Agriculture and Forestry (Volume 7, Issue 5)
DOI 10.11648/j.ajaf.20190705.12
Page(s) 168-176
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Deforestation, Land-cover, Declining Natural Forest, Net Changes

References
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[14] Olaleye, O. A., and Ameh, C. E., 1999, Forest Resource Situation Assessment of Nigeria. An EC-FAO Partnership Programme. Forest Resources Main Report (Draft). Volume 11.
[15] Goldammer, J. G., and Price, C., 1998, Potential impacts of climate change on fire regimes in the tropics based on Magicc and GISS GCM-derived lightning model. Climatic Change. 39, 273-276.
[16] De Sherbinin, A., Kline, K., and Raustiala, K., 2002. Remote sensing data: Valuable Support for Environmental Treaties. Environment, 44 (1), 20-31.
[17] Salami, A. T., 2006, Monitoring Nigerian Forest with NigeriaSat-1 and other satellites. In Salami AT (ed), Imperatives of Space Technology for Sustainable Forest Management. Proceedings of an International Stakeholders’ Workshop Sponsored by National Space Research and Development Agency (NASRDA), Abuja.
[18] Salami, A. T., Ekanade, O., and Oyinloye, R. O., 1999, Detection of forest reserve incursion in Southwestern Nigeria from a combination of multi-date aerial photographs and high resolution satellite imagery. International Journal of Remote Sensing, 20 (8), 1487-1497.
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Cite This Article
  • APA Style

    Olufunke Olubusayo Olayode. (2019). Spatio-Temporal Variations of Land-Cover Types in Osho Forest Reserve, Southwestern Nigeria. American Journal of Agriculture and Forestry, 7(5), 168-176. https://doi.org/10.11648/j.ajaf.20190705.12

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    ACS Style

    Olufunke Olubusayo Olayode. Spatio-Temporal Variations of Land-Cover Types in Osho Forest Reserve, Southwestern Nigeria. Am. J. Agric. For. 2019, 7(5), 168-176. doi: 10.11648/j.ajaf.20190705.12

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    AMA Style

    Olufunke Olubusayo Olayode. Spatio-Temporal Variations of Land-Cover Types in Osho Forest Reserve, Southwestern Nigeria. Am J Agric For. 2019;7(5):168-176. doi: 10.11648/j.ajaf.20190705.12

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  • @article{10.11648/j.ajaf.20190705.12,
      author = {Olufunke Olubusayo Olayode},
      title = {Spatio-Temporal Variations of Land-Cover Types in Osho Forest Reserve, Southwestern Nigeria},
      journal = {American Journal of Agriculture and Forestry},
      volume = {7},
      number = {5},
      pages = {168-176},
      doi = {10.11648/j.ajaf.20190705.12},
      url = {https://doi.org/10.11648/j.ajaf.20190705.12},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajaf.20190705.12},
      abstract = {The extent of any forest determines its capacity to supply goods and services which are indispensable for man’s continued existence. However, increasing population of humans subjects forest under pressure to meet basic needs of man thereby modifying its extent mostly through deforestation and forest degradation. It therefore became necessary to investigate the extent of Osho Forest Reserve, Nigeria (longitudes 3o25' and 5o00'E, latitudes 7o00' and 7o45'N) with the use of Landsat imageries of 1984, 2000 and 2006. The imageries were georeferenced to the same coordinate system using topographical map of the study area. Bands 2, 4 and 5 were used since they are suitable for vegetation studies. Idrisi32 and ArcGIS 8.1 were used for the analyses and map production respectively. A supervised classification theme of Natural Forest (NF), Plantation and Farmland was adopted after reconnaissance survey in the study area. NF which covered 93.8% in 1984 shrank to 4.0% in 2006, Plantation had occupied 6.0% in 1984 but increased to 9.0% in 2006 while Farmland significantly increased from 0.2% in 1984 to 87.0% within the same period. Although Plantation and Farmland increased over the study period, the declining NF extent has grave implications on the abilityof this forest ecosystem to sustainably deliver its benefits.},
     year = {2019}
    }
    

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    AU  - Olufunke Olubusayo Olayode
    Y1  - 2019/08/28
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    T2  - American Journal of Agriculture and Forestry
    JF  - American Journal of Agriculture and Forestry
    JO  - American Journal of Agriculture and Forestry
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    AB  - The extent of any forest determines its capacity to supply goods and services which are indispensable for man’s continued existence. However, increasing population of humans subjects forest under pressure to meet basic needs of man thereby modifying its extent mostly through deforestation and forest degradation. It therefore became necessary to investigate the extent of Osho Forest Reserve, Nigeria (longitudes 3o25' and 5o00'E, latitudes 7o00' and 7o45'N) with the use of Landsat imageries of 1984, 2000 and 2006. The imageries were georeferenced to the same coordinate system using topographical map of the study area. Bands 2, 4 and 5 were used since they are suitable for vegetation studies. Idrisi32 and ArcGIS 8.1 were used for the analyses and map production respectively. A supervised classification theme of Natural Forest (NF), Plantation and Farmland was adopted after reconnaissance survey in the study area. NF which covered 93.8% in 1984 shrank to 4.0% in 2006, Plantation had occupied 6.0% in 1984 but increased to 9.0% in 2006 while Farmland significantly increased from 0.2% in 1984 to 87.0% within the same period. Although Plantation and Farmland increased over the study period, the declining NF extent has grave implications on the abilityof this forest ecosystem to sustainably deliver its benefits.
    VL  - 7
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    ER  - 

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Author Information
  • Department of Forest Resources and Wildlife Management, Ekiti State University, Ado-Ekiti, Nigeria

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