The use of Shanon Weiners diversity index in the assessment of floral diversity and equitability of Neni–Nimo Watershed in Anaocha L.G.A. of Anambra State, Nigeria

The study on the floral diversity of Neni-Nimo watershed in Anaocha L.G.A. Anambra State was conducted between November 2009 and July 2020. aim to find out species richness biodiversity watershed. In this study, divided into three sites, forested site, fallow site current usage site. experiment laid a Randomized Complete Block Design. ecological methods used are Point Centred Plotless Count sampling technique for areas dominated by trees while Plot using quadrats were forbs, shrubs, climbers grasses. vegetation data collected estimate different plant growth forms, equitability various forms encountered calculated Shanon Weiners index. Shanno index shows that had highest than area. Regression analysis significant relationship exists abundance at p-value <0.05 all except grasses as increases, also increases.