| Autor: |
Oyelowo, O. J., Oladoye, A. O., Ojo, E. O., Olubayo, O. O., Sonde, B., Adelani, D. O. |
| Předmět: |
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| Zdroj: |
Cameroon Academy of Sciences Journal; Jul2023, Vol. 19 Issue 2, p125-139, 15p |
| Abstrakt: |
Logging activities, climate change and variation are threatening the sustainability of the entire forest ecosystem. Maintenance and periodic assessment of diverse ecosystems are, therefore, crucial for the long-term survival of human beings. However, baseline data on the resulting depletion of forest ecosystems in Nigeria are insufficient or lacking. The aim of the present study was to assess the phytosociological relationship between species composition and the diversity of woody species at Omo Biosphere Reserve. Three lines of transect were cut apart 200 m far from each other. Each transect has 4 plots of 50 x 50m in an alternate manner at 100m intervals. Trees with e" 10 cm diameter at breast height (DBH) in each plot were measured for height, DBH. The data were analyzed for species composition, richness, diversity, relative density, and relative dominance, Species Importance Value Index (IVI), Species diversity was computed using Shannon's Weaner and Simpson's diversity indices. The Data were analyzed using PAST software Version.3 and Microsoft Excel 2010. The Carl-Pearson correlation coefficient was calculated between various phytosociological parameters. A total of 427 trees representing 57 from 22 families were encountered in Omo Biosphere Reserve. The stocking density of dominant tree species/ha ranges from 0.33 trees/ha to 26.33 trees/ha. For Simpson's similarity between the plots, it varied from 0 % to 77 % for all the plots. The species diversity (Simpson's diversity indices) between the plots varies from 64 % to 93 % for all plots. In conclusion, this study demonstrates the promise of an in-situ approach to nature preservation. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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