Floristic Diversity Assessment of Forest Sites of Banka District of Bihar

Anup Chandra, H. B. Naithani, P. K. Verma, Jalaj Saxena, Rajneesh Bhatia

Abstract


For proper understanding of biodiversity of any area, in addition to qualitative parameters, quantitative data is essentially required at regular intervals. The primary aim of the study was to assess the plant diversity of forest sites of Banka district of Bihar. Study was carried out at six randomly selected forest sites (Site I to Site VI). Different diversity attributes viz. Species Richness, Important value Index (IVI), Diversity Index, Concentration of dominance and Evenness for tree, shrubby and herbaceous layers were estimated. A total of 156 species were reported from the study sites. These species belong to 131 genera and 58 families (110 dicotyledons, 19 monocotyledons and 2 pteridophytes).  Six largest families in the area were Fabaceae (16 spp.), Poaceae (11 spp.), Rubiaceae (8 spp.), Malvaceae (7 spp.), Moraceae and Euphorbiaceae (6 spp. each). On the basis of different biodiversity attributes most diverse site was found to be Mandar Bahar site (H=2.955) while lowest was Chaubatia Village (H=1.583).  In shrubby layer, highest diversity index (H=2.968) was reported for Biharu Pahar site and lowest for Chandam Dam ( H=2.028).   Herbaceous layer had highest diversity at Maholia Jungle site (H=2.923)  and lowest at  Chaubatia Village (H=2.302).  Causes and suitable strategies for conservation and sustainable utilization of biodiversity are   discussed.

Keywords: Phyto-sociology; Diversity Index; Species Richness; Important Value Index


Keywords


Phyto-sociology; Diversity Index; Species Richness; Important Value Index

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