Characterizing Measures of Aboveground Biomass Parameters of Irvingia gaboneensis (Bush Mango) and Rainforest in Isoko Region, Nigeria

This research characterised measures of aboveground biomass isolated Irvingia gaboneensis stands within Isoko South Local Government Area’s rainforest, Nigeria. The design the study was based on quasi experimental approach. region divided into 10 existing major communities using stratified sampling technique. From each community, an I. stand chosen while adjacent mature rainforest served as control thus, gave a total 20 sites. Data collected were tree heights (TH) and diameters at breast height (DBH) which easily obtained through quadrant (10metre x 10metre) Measurement methods trigonometry employed in determination TH, measurement tape to measure DBH. data analysed with use graphs, mean, standard deviation (SD), coefficient variation (CV), t-test regression statistics. Findings showed that: SD CV for TH 28.57m, 2.08m, 7.28% gaboneensis; 34.50m, 1.17m, 3.39% trees (ART). values DBH 0.43m, 0.02m, 4.65% 0.73m, 0.01m, 1.37% ART. With t-value p-value 6.9810 0.0000 TH; 11.9940 DBH, differences parameters between ART are significant 95% alpha level. Height correlated weakly DBH; relationship is not level, RF. standing shows that it supports effective productivity functioning RF ecosystem its conservation necessary.