Development of digital elevation model for Okomu National Park, Nigeria

  • Onyekachi Chukwu Department of Social and Environmental Forestry, University of Ibadan, Ibadan, Nigeria
  • Akintunde A. Alo Department of Social and Environmental Forestry, University of Ibadan, Ibadan, Nigeria
  • Jacinta U. Ezenwenyi Department of Social and Environmental Forestry, University of Ibadan, Ibadan, Nigeria; Department of Forestry and Wildlife, Nnamdi Azikiwe University, Awka, Nigeria
Keywords: Coordinates, Environment, Elevation, Forestry, Geographic information system, Global positioning system, Wildlife

Abstract

The type of soil, fauna and flora species that are found in an environment is affected by the elevation characteristics of the land. However, the ability to provide techniques and model that will effectively explain the elevation patterns of protected areas will aid sustainable management of the forest and its resources. This study developed Digital Elevation Model (DEM) for Okomu National Park, Nigeria. Point coordinates (2,272) with their respective elevations were randomly obtained covering the entire study area. Interpolated natural neighbour algorithm of the Quantum Geographic Information System was used to generate Digital Elevation Model for the National Park from the elevation data. Topographic map was extracted from the DEM at an interval of 10 m from one another. It was observed that the elevation in the study area ranged from 19 m to 105 m with an average of 56.32 m above sea level. Hence, the parkland is regarded as a gentle slope. This study revealed that the study area is not prone to flood or runoff due to its gentle slope nature. Therefore, this study is recommended as baseline information for ecological management as well as guide in the development of conservation strategies for flora and fauna species in the study area.

DOI: http://dx.doi.org/10.5281/zenodo.1241195

References

1. Sulebak JR. Applications of digital elevation models, DYNAMAP White paper, SINTEF Institute of Applied Mathematics, Oslo, 2000: 1-11.

2. Toz G, Erdogan M. DEM (Digital Elevation Model) production and accuracy modeling of DEMs from 1:35.000 scale aerial photographs. Int Arch Photogram Remote Sensing Spatial Inform Sci. 2004; 37(B1): 775-780.

3. Alo AA. Development of digital elevation models for Omo Forest Reserve Nigeria. In: Forestry and Allied Natural Resources Disciplines in Nigerian Institutions: Inputs for Future Solutions to Dwindling Forest Estate in Nigeria. Proceedings of the 1st Commonwealth Forestry Association (CFA) Conference, Forestry Research Institute of Nigeria (FRIN), Jericho, Ibadan, Nigeria, 10-12 October 2016: 357-363.

4. Moore ID, Grayson RB, Ladson AR. Digital terrain modeling: a review of hydrological, geomorphological, and biological applications. Hydrolog Proc. 1991; 5: 3-30.

5. Isioye OA, Jobin P. An assessment of digital elevation models (DEMs) from different spatial data sources. Asian J Engin Sci Technol. 2012; 2(1): 1-17.

6. Miliaresis G, Delikaraoglou D. Effects of percent tree canopy density and DEM misregistration on SRTM/NED vegetation height estimates. Remote Sensing. 2009; 1(2): 36-49.

7. Clarke CM. Nepenthes of Borneo. Kota Kinabalu: Natural History Publications, Borneo, 1997: 1-29.

8. Blasco F, Whitmore TC, Gers C. A framework for the worldwide comparison of tropical woody vegetation types. Biol Conserv. 2000; 95(2): 175-189.

9. Mulligan M. Modeling the tropics-wide extent and distribution of Cloud Forest and Cloud Forest Loss, with implications for conservation priority. In: Bruijnzeel LA, Scatena FN, Hamilton LS. Tropical Montane Cloud Forests: science for conservation and management. Cambridge University Press. 2011: 15-38.

10. Ojianwuna CC. Climatic variables as factors affecting diversity and abundance of butterflies in Okomu National Park, Edo State, Nigeria. J Nat Sci Res. 2015; 5(2): 70-76.

11. Ejidike BN, Okosodo EF. Feed and feeding habits of the thick-tailed galago (Otelemur crassicaudatus) in Okomu National Park, Edo State. J Fish Int. 2007; 2(3): 231-233.

12. Ijeomah, HM, Nwanegbo OC, Umokoro O. Assessment of tourist attractions in Okomu National Park and Oguta Lake Eco-destinations of Nigeria. PAT. 2015; 11(2): 219-239.

13. Aremu OT, Emelue GU, Osayimwen FE, Obasogie FO. Estimate of habitat quality of white throated monkey (Ceropithecus erythrogaster) in Okomu National Park, Nigeria. Nigerian J Agricult Food Environ. 2012; 8(1): 47-51.

14. Akinsorotan OA, Ogunjemite BG, Afolayan TA. Assessment of the large mammals of Arakhuan Range, Okomu National Park, Nigeria. Ethiopian J Environ Stud Manag. 2011; 4(3): 25-37.

15. Cobbina ND, Baffoe A, Sedami AY, Dankwah E, Ugbe J, AkomayeA. Assessment of high conservation values in parts of Okomu’s Extension I Concession. Proforest, 2016: 1-23.

16. Tan ZX, Lal R, Smeck NE, Calhoun FG. Relationships between surface soil organic carbon pool and site variables. Geoderma. 2004; 121(3-4): 185-187.

17. Birdlife International, Important Bird Areas factsheet: Okomu National Park. http://www. birdlife.org; accessed on 03 February, 2018.

18. Nigeria Park Service. http://nigeriaparkservice.org/ ?p=152; accessed on 03 February, 2018.

19. Heidari M, Roshan R, Hatami K. Herbaceous plants biodiversity assessment in relation to physiographic factors in forest ecosystems in central Zagros - Dalab protected area. J Renewable. 2010; 1(2): 42-28.

20. Karami R, Mehrabi HR, Ariapoor A. The effect of altitude and slope in the species diversity of herbaceous plants (case study: Watershed Miandar Qarootag - Gilangharb). J Appl Environ Biol Sci. 2015; 5(7): 197-204.

21. Pourbabaei H, Ahani H. Biodiversity of woody species in Acer platanoides sites in the Shafaroud Forests, Gilan (Iran). Rostaniha. 2004; 5: 147-158.
Published
2018-04-09
How to Cite
Chukwu, O., Alo, A., & Ezenwenyi, J. (2018). Development of digital elevation model for Okomu National Park, Nigeria. Current Life Sciences, 4(2), 27-32. Retrieved from http://journals.tmkarpinski.com/index.php/cls/article/view/47
Section
Research Articles