Tree species diversity in tropical forests of Barak valley in Assam, India
Nepolion Borah*, Debajit Rabha and Florida Devi Athokpam
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Abstract: To enumerate the tree species diversity of tropical forests, 89 belt-transects was laid in different reserve forests and private forests of the Barak Valley, Assam, Northeast India. A total of 222 tree species were recorded from 152 genera and 65 families. Euphorbiaceae was the most species rich family with 23 species. Out of 65 families, 30 families were recorded with only one species while 10 families were recorded with two species. Artocarpus chama was the most abundant and frequently occurred species. Podocarpus nerifolia was the only gymnosperm tree recorded in this study while Caryota urena and Pleomele spicata were the monocot tree species. Five threatened species were recorded from the Valley.