Research Article
Tree Species Richness, Diversity, and Vegetation Index for Federal Capital Territory, Abuja, Nigeria
Table 3
Biodiversity indices and growth parameters of individual trees in the periurban areas (Abuja city) of the Federal Capital Territory, Nigeria.
| S/N | Tree species | Family | FQ | MHt | MDbh | B.A | Vol. | RD | RDO | IVI |
| 1 | Albizia falcate | Fabaceae | 1 | 19.8 | 16.0 | 0.02 | 0.40 | 0.47 | 0.15 | 0.31 | 2 | Azadirachta indica | Meliaceae | 16 | 19.1 | 11.9 | 2.86 | 54.56 | 7.51 | 20.85 | 14.18 | 3 | Cleistopholis patens | Annonaceae | 5 | 15.6 | 17.4 | 0.59 | 9.27 | 2.35 | 4.34 | 3.34 | 4 | Cocos nucifera | Arecaceae | 11 | 8.4 | 5.3 | 0.26 | 2.22 | 5.16 | 1.93 | 3.55 | 5 | Delonix regia | Fabaceae | 17 | 14.2 | 2.7 | 0.17 | 2.38 | 7.98 | 1.22 | 4.60 | 6 | Elaeis guineensis | Arecaceae | 1 | 14.2 | 47.8 | 0.18 | 2.55 | 0.47 | 1.31 | 0.89 | 7 | Euphorbia dendroides | Euphorbiaceae | 1 | 8.0 | 52.0 | 0.21 | 1.70 | 0.47 | 1.55 | 1.01 | 8 | Ficus goliath | Moraceae | 4 | 15.5 | 17.5 | 0.38 | 5.93 | 1.88 | 2.79 | 2.34 | 9 | Gmelina arborea | Verbenaceae | 72 | 14.0 | 1.2 | 0.63 | 8.83 | 33.80 | 4.60 | 19.20 | 10 | Hildegardia baterii | Malvaceae | 1 | 15.7 | 89.6 | 0.63 | 9.90 | 0.47 | 4.60 | 2.54 | 11 | Jatropha curcas | Euphorbiaceae | 1 | 4.0 | 16.0 | 0.02 | 0.08 | 0.47 | 0.15 | 0.31 | 12 | Mangifera indica | Anacardiaceae | 20 | 11.1 | 2.1 | 0.13 | 1.48 | 9.39 | 0.97 | 5.18 | 13 | Nauclea diderrichii | Rubiaceae | 2 | 15.5 | 68.0 | 1.45 | 22.49 | 0.94 | 10.59 | 5.76 | 14 | Parkia biglobosa | Fabaceae | 26 | 16.3 | 4.5 | 1.09 | 17.80 | 12.21 | 7.97 | 10.09 | 15 | Ravenala madagascariensis | Strelitziaceae | 1 | 15.4 | 36.0 | 0.10 | 1.57 | 0.47 | 0.74 | 0.61 | 16 | Ricinodendron heudelotii | Euphorbiaceae | 1 | 6.8 | 171.0 | 2.30 | 15.62 | 0.47 | 16.77 | 8.62 | 17 | Senna siamea | Fabaceae | 6 | 21.2 | 14.8 | 0.62 | 13.13 | 2.82 | 4.52 | 3.67 | 18 | Terminalia superba | Combretaceae | 9 | 12.7 | 13.6 | 1.17 | 14.85 | 4.23 | 8.53 | 6.38 | 19 | Treculia Africana | Moraceae | 1 | 6.0 | 85.8 | 0.58 | 3.47 | 0.47 | 4.22 | 2.35 | 20 | Vachellia nilotica | Fabaceae | 17 | 9.2 | 3.6 | 0.30 | 2.74 | 7.98 | 2.18 | 5.08 |
| | | | 213 | | | 13.7 | 191.0 | | | |
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FQ: number of tree stems in the city, B.A.: basal area of trees in the city, Vol.: volume of trees in the city.
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